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IV. SPEAKINGChoose the sentences or phrases that best complete these conversations.1.  A: _______________________________     B: Well, a microwave is used to cook or heat food.     a. Could you tell me what is a microwave used for ?     b. Please tell me how to use a microwave?     c. Can you tell me what is used 'for cooking ?     d. Could you tell me what a microwave is used for ?2. A: What will we do when we want to call the Fire Service?    B: _______________________________     a. Dial...
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IV. SPEAKING
Choose the sentences or phrases that best complete these conversations.

1.  A: _______________________________

     B: Well, a microwave is used to cook or heat food.

     a. Could you tell me what is a microwave used for ?

     b. Please tell me how to use a microwave?

     c. Can you tell me what is used 'for cooking ?

     d. Could you tell me what a microwave is used for ?

2. A: What will we do when we want to call the Fire Service?

    B: _______________________________

     a. Dial 113                          b. Dial 114                            c. Dial 115                             d. Dial  116

3. A: _______________________________                                 

    B: Let me see, since September 2003.

     a. When did you attend this school?                                b. How long have you studied at this school?

     c. Since when did you studied at this school?                 d. How-often do you attend this school?

4. A: Would you like a coffee?

    B: _______________________________

     a. Not at all.                        b. Yes,  let's.                         c. Yes. I would.                   d. Yes. I'd love one.

5. A: What should you do if you don't want to hear the sound?

    B: _______________________________

     a. Press the MUTE button.                                             b. Press the VOLUME button.

     c. Press the PROGRAM button.                                    d. Press the POWER button.

1
21 tháng 11 2021

IV. SPEAKING
Choose the sentences or phrases that best complete these conversations.

1.  A: _______________________________

     B: Well, a microwave is used to cook or heat food.

     a. Could you tell me what is a microwave used for ?

     b. Please tell me how to use a microwave?

     c. Can you tell me what is used 'for cooking ?

     d. Could you tell me what a microwave is used for ?

2. A: What will we do when we want to call the Fire Service?

    B: _______________________________

     a. Dial 113                          b. Dial 114                            c. Dial 115                             d. Dial  116

3. A: _______________________________                                 

    B: Let me see, since September 2003.

     a. When did you attend this school?                                b. How long have you studied at this school?

     c. Since when did you studied at this school?                 d. How-often do you attend this school?

4. A: Would you like a coffee?

    B: _______________________________

     a. Not at all.                        b. Yes,  let's.                         c. Yes. I would.                   d. Yes. I'd love one.

5. A: What should you do if you don't want to hear the sound?

    B: _______________________________

     a. Press the MUTE button.                                             b. Press the VOLUME button.

     c. Press the PROGRAM button.                                    d. Press the POWER button.

IV. SPEAKINGChoose the sentences or phrases that best complete this dialogue.A: (1) ................................. in your exam!B: (2) ...................................... . I hope we both pass.  A: Did you study all last night ?B: (3) ................................. I watched TV and went to bed. (4) ............................... .A:    I did the same. (5) ................................. after the exam.B: All right. (6) ............................. for a drink.1.  a. How are...
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IV. SPEAKING

Choose the sentences or phrases that best complete this dialogue.

A: (1) ................................. in your exam!

B: (2) ...................................... . I hope we both pass.  

A: Did you study all last night ?

B: (3) ................................. I watched TV and went to bed. (4) ............................... .

A:    I did the same. (5) ................................. after the exam.

B: All right. (6) ............................. for a drink.

1.  a. How are you                b. Have a good               c. Good luck                d. What about you

2.  a. Like you.                     b. Same to you.               c. Same of you.            d. You do.

3.  a. Yes, I did.                   b. No, of course not       c. Of course I did.              d. I not do that.

4.  a. What about you?        b. How are you?             c. And you did?          d. What did you?

5.  a. Good bye                     b. Nice to see you           c. See you later            d. Meet you again

6.  a. We go                          b. Let's go                       c. Could you go           d. Don't you go

1
26 tháng 9 2021

1 C

2 B

3 B

4 A

5 C

6 B

I. Choose the suitable words or phrases to complete these sentences. ( 3ms ).1. Could you . . .. . .. . . me a favor ?a.a. do b. put c. let d. buy2. I . . . .. . there when I was ten.a. use to stay b.used to stay c. am staying3. The toy cat is different . . . . . . . the toy dog.a. in b. on c. of d.from4. I can speak English . . .. .. I can’t speak Spanish.a. but b. so c.because d. although5. I know that she studies very . . .. . ..a. good b. well c. goodly d. at good6. . . . . . . . . . . .....
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I. Choose the suitable words or phrases to complete these sentences. ( 3ms ).

1. Could you . . .. . .. . . me a favor ?

a.a. do b. put c. let d. buy

2. I . . . .. . there when I was ten.

a. use to stay b.used to stay c. am staying

3. The toy cat is different . . . . . . . the toy dog.

a. in b. on c. of d.from

4. I can speak English . . .. .. I can’t speak Spanish.

a. but b. so c.because d. although

5. I know that she studies very . . .. . ..

a. good b. well c. goodly d. at good

6. . . . . . . . . . . .. do they collect and empty garbage ? – On January 9th.

a. What b. Where c. When d. How often

7. I . . . . . . . . . . here since last week.

a. lived b. has lived c. have lived d. have live

8. I often play soccer . . . . . . Sunday afternoons.

a. in b. on at d. from.

9. It’s very kind . . . . . . . .. . you.

a. to b. of c. in d. at.

10. She . . . . . . . . .. . an English book yesterday.

a. buy b. to buy c. bought d.buying

11. May I help you? a

. No b. Yes. c. Yes, thank you

12. She asked me . . . . . . . . . . for her.

a. wait b. to wait c. waiting d. waited

1
26 tháng 11 2021

1. Could you . . .. . .. . . me a favor ?

a. do                   b. put                  c. let                      d. buy

2. I . . . .. . there when I was ten.

a. use to stay             b.used to stay              c. am staying

3. The toy cat is different . . . . . . . the toy dog.

a. in               b. on                   c. of             d.from

4. I can speak English . . .. .. I can’t speak Spanish.

a. but           b. so              c.because                  d. although

5. I know that she studies very . . .. . ..

a. good          b. well          c. goodly            d. at good

6. . . . . . . . . . . .. do they collect and empty garbage ? – On January 9th.

a. What b. Where c. When d. How often

7. I . . . . . . . . . . here since last week.

a. lived             b. has lived           c. have lived             d. have live

8. I often play soccer . . . . . . Sunday afternoons.

a. in         b. on           c.at                  d. from.

9. It’s very kind . . . . . . . .. . you.

a. to       b. of           c. in           d. at.

10. She . . . . . . . . .. . an English book yesterday.

a. buy              b. to buy       c. bought            d.buying

11. May I help you? 

a. No             b. Yes.                    c. Yes, thank you

12. She asked me . . . . . . . . . . for her.

a. wait b. to wait c. waiting d. waited

26 tháng 11 2021

1 B

IV. In the following text, six sentences or parts of sentences have been removed. Above the extract you will find the six removed sentences PLUS one sentence which doesn't fit. Choose from the sentences (A-G) the one which fits each gap (1-6). Remember, there is one extra sentence you do not need to use. Write the correct letter in the box. Choose from the following sentences to fill the spaces in the text. There is ONE extra. A. Using a microwave for cooking a large food mass is difficult...
Đọc tiếp

IV. In the following text, six sentences or parts of sentences have been removed. Above
the extract you will find the six removed sentences PLUS one sentence which doesn't fit.
Choose from the sentences (A-G) the one which fits each gap (1-6). Remember, there is
one extra sentence you do not need to use. Write the correct letter in the box.
Choose from the following sentences to fill the spaces in the text. There is ONE extra.
A. Using a microwave for cooking a large food mass is difficult due to limited penetration of
microwaves.
B. This can be overcome by leaving the food to stand for a few minutes when cooking is
completed.

C. It is advised that the water should be poured slowly into another container that already
contains the powder.
D. In this way, buying a microwave oven with a turntable ensure the food is cooked
throughout.
E. Conversely the microwaves do not heat glass, ceramic and plastic containers.
F. If the microwaves are not absorbed inside the oven, the oven can be damaged by
electrical arcs and overheating of the microwave source.
G. When water in that state is disturbed, it can suddenly and unexpectedly boil violently.

0
IV. Choose the best answer A, B, C or D that is the same meaning with the italic sentence:1. They use cars and trucks to carry food to market.A. Cars and trucks are used to carrying food to market.B. Cars and trucks are used to carry food to market.C. Cars and trucks are use to carrying food to market.D. Cars and trucks are used to carried food to market.2. We will meet him at the station.A. He will be met at that station.B. He will meet at that station.C. He will be meet at that station.D. He...
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IV. Choose the best answer A, B, C or D that is the same meaning with the italic sentence:

1. They use cars and trucks to carry food to market.
A. Cars and trucks are used to carrying food to market.
B. Cars and trucks are used to carry food to market.
C. Cars and trucks are use to carrying food to market.
D. Cars and trucks are used to carried food to market.
2. We will meet him at the station.
A. He will be met at that station.
B. He will meet at that station.
C. He will be meet at that station.
D. He will be meeted at that station.
3. How long have they done their work?
A. How long have their work been done?
B. How long has their work be done?
C. How long has their work been done?
D. How long has their work done?
4. No one could help him.
A. He could be helped by no one.
B. He couldn’t be helped by no one.
C. He couldn’t helped.
D. He couldn’t be helped.
5. The gate is painted once a year.
A. They paint the gate once a year.
B. They painted the gate once a year.
C. They are painting the gate once a year.
D. They will paint the gate once a year.
6. Food can’t be sold on the sidewalk.
A. They can’t sold food on the sidewalk.
B. They can’t be sold food on the sidewalk
C. They can’t sell food on the sidewalk
D. They can not sold food on the sidewalk
7. at work./ modern/ Many/ prefer to/ Vietnamese women/ wear/ clothing/
A. Many women Vietnamese prefer to wear modern clothing at work.
B. Many women Vietnamese prefer to wear clothing modern at work.
C. Many Vietnamese women prefer to wear modern clothing at work.
D. Many Vietnamese women prefer to wear clothing modern at work.
8. their / not / The Browns / moved / flat / have / into / new / yet
A. Browns have not moved into the new their flat yet.
B. The Browns have not moved into their new flat yet.
C. The Browns have not moved yet into their new flat.
D. The Browns not have moved into their new flat yet.
9.Mr Parker/ maize/ on/ grows/ his farm
A. Mr Parker grows his farm on maize.
B. Mr Parker grows farm on his maize.
C. Mr Parker on his maize grows farm.
D. Mr Parker grows maize on his farm.
10. The flowers shouldn’t be cut in this garden.
A. You shouldn’t be cut the flowers in this garden.
B. You shouldn’t cutting the flowers in this garden.
C. You shouldn’t cut the flowers in this garden.
D. You should cut the flowers in this garden.

 

1
9 tháng 11 2021
1. They use cars and trucks to carry food to market.
A. Cars and trucks are used to carrying food to market.
B. Cars and trucks are used to carry food to market.
C. Cars and trucks are use to carrying food to market.
D. Cars and trucks are used to carried food to market.
2. We will meet him at the station.
A. He will be met at that station.
B. He will meet at that station.
C. He will be meet at that station.
D. He will be meeted at that station.
3. How long have they done their work?
A. How long have their work been done?
B. How long has their work be done?
C. How long has their work been done?
D. How long has their work done?
4. No one could help him.
A. He could be helped by no one.
B. He couldn’t be helped by no one.
C. He couldn’t helped.
D. He couldn’t be helped.
5. The gate is painted once a year.
A. They paint the gate once a year.
B. They painted the gate once a year.
C. They are painting the gate once a year.
D. They will paint the gate once a year.
6. Food can’t be sold on the sidewalk.
A. They can’t sold food on the sidewalk.
B. They can’t be sold food on the sidewalk
C. They can’t sell food on the sidewalk
D. They can not sold food on the sidewalk
7. at work./ modern/ Many/ prefer to/ Vietnamese women/ wear/ clothing/
A. Many women Vietnamese prefer to wear modern clothing at work.
B. Many women Vietnamese prefer to wear clothing modern at work.
C. Many Vietnamese women prefer to wear modern clothing at work.
D. Many Vietnamese women prefer to wear clothing modern at work.
8. their / not / The Browns / moved / flat / have / into / new / yet
A. Browns have not moved into the new their flat yet.
B. The Browns have not moved into their new flat yet.
C. The Browns have not moved yet into their new flat.
D. The Browns not have moved into their new flat yet.
9.Mr Parker/ maize/ on/ grows/ his farm
A. Mr Parker grows his farm on maize.
B. Mr Parker grows farm on his maize.
C. Mr Parker on his maize grows farm.
D. Mr Parker grows maize on his farm.
10. The flowers shouldn’t be cut in this garden.
A. You shouldn’t be cut the flowers in this garden.
B. You shouldn’t cutting the flowers in this garden.
C. You shouldn’t cut the flowers in this garden.
D. You should cut the flowers in this garden.
Mark the letter A, B, C or D to indicate the sentence that is best written from the words/phrases given.Question 37:I / not / cook / good/ my motherI don't cook as better as my mother.I don't cook as well as my mother.I not cook as well as my mother.I don't cook as good as my mother.Question 38:He / not/ win / Oscar / Best Actor / although / he / perform / excellentlyHe didn't win an Oscar Best Actor although he performs excellently.He not win an Oscar Best Actor although he performed...
Đọc tiếp

Mark the letter A, B, C or D to indicate the sentence that is best written from the words/phrases given.

Question 37:

I / not / cook / good/ my mother

I don't cook as better as my mother.

I don't cook as well as my mother.

I not cook as well as my mother.

I don't cook as good as my mother.

Question 38:

He / not/ win / Oscar / Best Actor / although / he / perform / excellently

He didn't win an Oscar Best Actor although he performs excellently.

He not win an Oscar Best Actor although he performed excellently.

He doesn't win an Oscar Best Actor although he performed excellently.

He didn't win an Oscar Best Actor although he performed excellently.

Question 39:

If / he / study / hard, he / pass / final exam

If he study hard, he will pass the final exam.

If he will study hard, he passes the final exam.

If he studies hard, he will pass the final exam.

If he studied hard, he will pass the final exam.

Question 40:

My dad / drive / school / my house /far / my school

My dad usually drives me to school, so my house is far from my school.

My dad usually drives me to school but my house is far from my school.

My dad usually drives me to school or my house is far from my school.

My dad usually drives me to school because my house is far from my school.

1
15 tháng 3 2022

Question 37:

I / not / cook / good/ my mother

I don't cook as better as my mother.

I don't cook as well as my mother.

I not cook as well as my mother.

I don't cook as good as my mother.

Question 38:

He / not/ win / Oscar / Best Actor / although / he / perform / excellently

He didn't win an Oscar Best Actor although he performs excellently.

He not win an Oscar Best Actor although he performed excellently.

He doesn't win an Oscar Best Actor although he performed excellently.

He didn't win an Oscar Best Actor although he performed excellently.

Question 39:

If / he / study / hard, he / pass / final exam

If he study hard, he will pass the final exam.

If he will study hard, he passes the final exam.

If he studies hard, he will pass the final exam.

If he studied hard, he will pass the final exam.

Question 40:

My dad / drive / school / my house /far / my school

My dad usually drives me to school, so my house is far from my school.

My dad usually drives me to school but my house is far from my school.

My dad usually drives me to school or my house is far from my school.

My dad usually drives me to school because my house is far from my school.

15 tháng 3 2022

cảm ơn bạn nha!!!

Choose the best option among A, B, C, or D to complete each of the following sentences.1. Tell me ___you want and I will try to help you.  A. that                                     B. what                                    C. who                        D. which2. The bed ___I slept in was too soft.                     A. whose                               B. which                                  C. what                       D. who3. Nora is the only person ____understands me.   A. which ...
Đọc tiếp

Choose the best option among A, B, C, or D to complete each of the following sentences.

1. Tell me ___you want and I will try to help you.  

A. that                                     B. what                                    C. who                        D. which

2. The bed ___I slept in was too soft.                   

  A. whose                               B. which                                  C. what                       D. who

3. Nora is the only person ____understands me. 

  A. which                               B. who                                    C. what                       D. whose

4. The hotel ___we stayed was not clean.              

A. who                                    B. that                                     C. where                        D. when

5. What was the name of the people ___car had broken down.    

 A. which                                B. who                                     C. whom                     D. whose

6. I recently went back to the town _____I was born.            

 A. what                                  B. where                                  C. who                        D. which

7. I don’t agree with ____ you have just said.           

A. what                                   B. who                                    C. when                       D. which

8. Do you know the girl ___Tom is talking to?   

A. whom                                             B. what                                   C. which                      D. whose

9. I gave her all the money ____ I had.              

 A. that                                    B. what                                   C. when                       D. whose

10.The stories ___Tom tells are usually very funny.   

 A. when                                 B. that                                     C. where                      D. who

11. I met the woman ___can speak 6 languages.        

 A. who                                   B. when                                   C. which                      D. whom

12. The periodic table contains all the elements, ________ has a particular atomic weight and atomic number.

A. which of each                     B. each of which                     C. which each             D. each

 

2
26 tháng 2 2021

Choose the best option among A, B, C, or D to complete each of the following sentences.

1. Tell me ___you want and I will try to help you.  

A. that                                     B. what                                    C. who                        D. which

2. The bed ___I slept in was too soft.                   

  A. whose                               B. which                                  C. what                       D. who

3. Nora is the only person ____understands me. 

  A. which                               B. who                                    C. what                       D. whose

4. The hotel ___we stayed was not clean.              

A. who                                    B. that                                     C. where                        D. when

5. What was the name of the people ___car had broken down.    

 A. which                                B. who                                     C. whom                     D. whose

6. I recently went back to the town _____I was born.            

 A. what                                  B. where                                  C. who                        D. which

7. I don’t agree with ____ you have just said.           

A. what                                   B. who                                    C. when                       D. which

8. Do you know the girl ___Tom is talking to?   

A. whom                                             B. what                                   C. which                      D. whose

9. I gave her all the money ____ I had.              

 A. that                                    B. what                                   C. when                       D. whose

10.The stories ___Tom tells are usually very funny.   

 A. when                                 B. that                                     C. where                      D. who

11. I met the woman ___can speak 6 languages.        

 A. who                                   B. when                                   C. which                      D. whom

12. The periodic table contains all the elements, ________ has a particular atomic weight and atomic number.

A. which of each                     B. each of which                     C. which each             D. each

28 tháng 2 2021

1B

2B

3B

4C

5D

6B

7A

8A

9A

10B

11A

12B

IV. In the following text, six sentences or parts of sentences have been removed. Above the extract you will find the six removed sentences PLUS one sentence which doesn't fit. Choose from the sentences (A-G) the one which fits each gap (1-6). Remember, there is one extra sentence you do not need to use. Write the correct letter in the box. Choose from the following sentences to fill the spaces in the text. There is ONE extra. A. Using a microwave for cooking a large food mass is difficult...
Đọc tiếp

IV. In the following text, six sentences or parts of sentences have been removed. Above
the extract you will find the six removed sentences PLUS one sentence which doesn't fit.
Choose from the sentences (A-G) the one which fits each gap (1-6). Remember, there is
one extra sentence you do not need to use. Write the correct letter in the box.
Choose from the following sentences to fill the spaces in the text. There is ONE extra.
A. Using a microwave for cooking a large food mass is difficult due to limited penetration of
microwaves.
B. This can be overcome by leaving the food to stand for a few minutes when cooking is
completed.

C. It is advised that the water should be poured slowly into another container that already
contains the powder.
D. In this way, buying a microwave oven with a turntable ensure the food is cooked
throughout.
E. Conversely the microwaves do not heat glass, ceramic and plastic containers.
F. If the microwaves are not absorbed inside the oven, the oven can be damaged by
electrical arcs and overheating of the microwave source.
G. When water in that state is disturbed, it can suddenly and unexpectedly boil violently.
MICROWAVING
Microwaving is a method of cooking where food is bombarded by microwaves, usually
within an appliance called a microwave oven which excite the water, fat and sugar
molecules, thereby heating (cooking) both the outside and center of the food at the same
time. (1)…………………
(A common myth is that a microwave oven cooks from the center of the food outward. This
appears to happen because heat generated at the surface escapes more readily from the
surface of the food into the surrounding air.) One advantage of microwaving is that small
amounts of food can be heated very quickly, making it useful for reheating leftovers.
The disadvantage is that food which is microwaved does not undergo some of the chemical
reactions, such as browning, which makes the food visually attractive. Primitive microwave
ovens often do not cook evenly, leading to a concern that bacteria easily killed by more
traditional cooking methods may survive the quick cooking time in "cold spots", though the
food item as a whole is cooked to a safe average temperature. (2) ……
Some high-end microwave ovens are combined with a convection oven which basically
cook the food using microwave and hot air simultaneously to achieve both the fast cooking
time and browning effect.
(3) …………………
However microwave ovens are used in some fast food chains and special microwave bags
are available for cooking fowl or large joints of meat.
Professional chefs generally recommend using microwaves for a limited set of tasks,
including: melting fats (such as butter) and chocolate, cooking grains like oatmeal and grits,
cooking rice, thawing frozen meats and vegetables before cooking by other methods and
quickly reheating already-cooked foods.
Using a microwave to boil water is potentially dangerous, due to superheating. In a
microwave, water can be raised quickly to a temperature above the boiling point before
major bubbles form, especially if it is purified and in a very clean glass vessel. (4)
…………………
This effect is rare, even for scientists who try to deliberately recreate it, and any seed
whatsoever for boiling is likely to prevent the problem. Boiling water with, for instance, a
teabag already in it will prevent any dangers by providing a seed, as will using a mug that is
not perfectly clean.

The risk greatly increases when water has already been boiled once in the same container.
This situation can occur if the user of the oven boiled the water once, forgot about it, then
came back later to boil it again. The first time the water boils, the seed bubbles
(microscopic bubbles of air around which larger steam bubbles grow) are used up and
largely eliminated from the water as it cools down. When the water is heated again, the lack
of seed bubbles causes superheating, and a risk of a steam explosion when the water's
surface is disturbed.
Placing something in the water before heating can mostly alleviate this risk. If you are
planning to mix something with the water, say tea or hot chocolate, adding it before heating
will insure that the water boils. Otherwise, placing a wood object, for instance a chopstick,
in the water before heating will also work.
Care should be taken when removing heated water from a microwave. Make sure that the
hands are protected from possible liquid boil-over, place the container on a level, heat-
proof surface and stir liquid with a warm spoon. Also, never add powdered substances
(such as instant coffee or cocoa mix) to the container taken from the microwave, due to the
addition of all those seed bubbles and the potential for violent, spontaneous boiling. (5)
…………………
Metal objects, such as metal utensils, in a microwave oven can lead to dangerous situations.
Metals do not absorb microwaves effectively. Instead, metals reflect microwaves, thereby
preventing the latter from reaching the food. (6) …………………
Thin metal layers, such as metal foil and mugs with metal trim can melt or burn due to the
strong electrical currents that are generated in metal objects. However, small solid metal
objects, such as spoons, in combination with a large amount of absorbing food or liquid,
normally do not lead to problems.
This article is licensed under the GNU Free Documentation License. It uses material from the
Original Wikipedia article.

3
21 tháng 2 2020

IV. In the following text, six sentences or parts of sentences have been removed. Above
the extract you will find the six removed sentences PLUS one sentence which doesn't fit.
Choose from the sentences (A-G) the one which fits each gap (1-6). Remember, there is
one extra sentence you do not need to use. Write the correct letter in the box.
Choose from the following sentences to fill the spaces in the text. There is ONE extra.
A. Using a microwave for cooking a large food mass is difficult due to limited penetration of
microwaves.
B. This can be overcome by leaving the food to stand for a few minutes when cooking is
completed.

C. It is advised that the water should be poured slowly into another container that already
contains the powder.
D. In this way, buying a microwave oven with a turntable ensure the food is cooked
throughout.
E. Conversely the microwaves do not heat glass, ceramic and plastic containers.
F. If the microwaves are not absorbed inside the oven, the oven can be damaged by
electrical arcs and overheating of the microwave source.
G. When water in that state is disturbed, it can suddenly and unexpectedly boil violently.
MICROWAVING
Microwaving is a method of cooking where food is bombarded by microwaves, usually
within an appliance called a microwave oven which excite the water, fat and sugar
molecules, thereby heating (cooking) both the outside and center of the food at the same
time. (1)………E…………
(A common myth is that a microwave oven cooks from the center of the food outward. This
appears to happen because heat generated at the surface escapes more readily from the
surface of the food into the surrounding air.) One advantage of microwaving is that small
amounts of food can be heated very quickly, making it useful for reheating leftovers.
The disadvantage is that food which is microwaved does not undergo some of the chemical
reactions, such as browning, which makes the food visually attractive. Primitive microwave
ovens often do not cook evenly, leading to a concern that bacteria easily killed by more
traditional cooking methods may survive the quick cooking time in "cold spots", though the
food item as a whole is cooked to a safe average temperature. (2) …B
Some high-end microwave ovens are combined with a convection oven which basically
cook the food using microwave and hot air simultaneously to achieve both the fast cooking
time and browning effect.
(3) ………A…………
However microwave ovens are used in some fast food chains and special microwave bags
are available for cooking fowl or large joints of meat.
Professional chefs generally recommend using microwaves for a limited set of tasks,
including: melting fats (such as butter) and chocolate, cooking grains like oatmeal and grits,
cooking rice, thawing frozen meats and vegetables before cooking by other methods and
quickly reheating already-cooked foods.
Using a microwave to boil water is potentially dangerous, due to superheating. In a
microwave, water can be raised quickly to a temperature above the boiling point before
major bubbles form, especially if it is purified and in a very clean glass vessel. (4)
………G…………
This effect is rare, even for scientists who try to deliberately recreate it, and any seed
whatsoever for boiling is likely to prevent the problem. Boiling water with, for instance, a
teabag already in it will prevent any dangers by providing a seed, as will using a mug that is
not perfectly clean.

The risk greatly increases when water has already been boiled once in the same container.
This situation can occur if the user of the oven boiled the water once, forgot about it, then
came back later to boil it again. The first time the water boils, the seed bubbles
(microscopic bubbles of air around which larger steam bubbles grow) are used up and
largely eliminated from the water as it cools down. When the water is heated again, the lack
of seed bubbles causes superheating, and a risk of a steam explosion when the water's
surface is disturbed.
Placing something in the water before heating can mostly alleviate this risk. If you are
planning to mix something with the water, say tea or hot chocolate, adding it before heating
will insure that the water boils. Otherwise, placing a wood object, for instance a chopstick,
in the water before heating will also work.
Care should be taken when removing heated water from a microwave. Make sure that the
hands are protected from possible liquid boil-over, place the container on a level, heat-
proof surface and stir liquid with a warm spoon. Also, never add powdered substances
(such as instant coffee or cocoa mix) to the container taken from the microwave, due to the
addition of all those seed bubbles and the potential for violent, spontaneous boiling. (5)
…………C………
Metal objects, such as metal utensils, in a microwave oven can lead to dangerous situations.
Metals do not absorb microwaves effectively. Instead, metals reflect microwaves, thereby
preventing the latter from reaching the food. (6) …………F………
Thin metal layers, such as metal foil and mugs with metal trim can melt or burn due to the
strong electrical currents that are generated in metal objects. However, small solid metal
objects, such as spoons, in combination with a large amount of absorbing food or liquid,
normally do not lead to problems.
This article is licensed under the GNU Free Documentation License. It uses material from the
Original Wikipedia article.

21 tháng 2 2020

Nguyễn Bích Ngọc ngô mai phương một tip nhỏ cho 2 e khi làm bài này đúng ra là nên đọc hết cả bài nhưng mà cj thấy bài này sử dụng từ vựng khá là đơn giản thôi nên chỉ cần đọc câu trước và câu phía sau câu chỗ cần điền các e có thể đoán ra phần nào cho chắc ăn các e có thể đọc lại đoạn đó sau khi chọn. < chỉ bài này thôi là đọc câu trước và câu sau là tìm dduocj thôi chứ cj ko chắc là bài nào cũng vậy nah >

3 tháng 4 2019

Đáp án: D

6 tháng 12 2018

EX1:Completing the sentences with V-ing or to-infinitives.

1.You can use a website as an address......(find) information about company.

2.A scanner is used for......(transfer) pictures or documents to a computer.

3.You can use a USB.......(store) information from a computer.

4.A moden is used for one computer.......(communicate) with another computer.

EX2:Complete these sentencs with and-because-but-or-so.

1.Mike....didn't use to smoke .(not smoke) before going to the army.

2.There.....used to be.(be) three parks in our village, but now there..is...(be) only one.

3.Murat..used to like...(like)cheeseburgers, but now he.....eats(eat) healthy food.

4.She...had cooked.(not cook) before she got married, but now she...cooks..(cook) every evening.

6 tháng 12 2018

cái đề nó sao sao á @@