Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Read the passage carefully, then choose the correct answers.
A tsunami is a natural disaster more devastating than earthquakes, tornadoes or any other disaster you can think of. Tsunami is a Japanese word that means harbor wave. A tsunami happens when huge waves are formed after something under the ocean occurs to make these large waves form. Erupting volcanoes can also cause tsunamis to occur. The waves start in one area but they move quickly in all different directions once the tsunami begins. Tsunamis begin as an under the water earthquake. The force of the earth moving causes the water to move and produce huge waves. Waves from tsunami cam travel through the water as fast as 500 miles per hour. As they approach the coast, they continue to grow in size before smashing down on the cities and towns along the coastline. These waves can often be as high as 100 feet, causing much destruction.
32. What is a tsunami?
a. A series of huge waves c. A sudden gust of wind b. A storm with strong winds d. A violent shaking of earth's surface
33. Which is the most diastrous, according to the passage?
a. Earthquake b. Tornado c. Tsunami d. hurricane
34. Which can cause a tsunami to occur?
a. Droughts b. Floods c. Hurricanes d. Volcanic eruptions
35. What happens to a tsunami as it approaches the coast?
a. It changes direction.
b. It decreases the height.
c. It grows in size.
d. It moves more quickly
36. What happens when a tsunami hits land?
a. It devastates coastal regions.
b. It causes underwater earthquake.
c. It blows everything out to sea.
d. It sucks up everything in its path.
. I don't expect much traffic, but ________ there is, I think we should leave early.
A. in case B. in case of C. in time D. in a hurry
27. Although Tom’s grandmother doesn’t _____ weather forecasts, she likes watching them.
A. experience B. trust C. expect D. predict
28. An area of land with hills or mountains is called the _______.
A. regions B. territories C. highlands D. environment
29. They are going to a park ______ the other side of Saigon Bridge.
A. in B. on C. at D. to
30. The word “typhoon” comes ______ the Chinese language, doesn’t it ?
A. from B. for C. about D. with
31. The accident ______ while he was driving to the office.
A. occurred B. was occur C. was occurred D. was being occurred
32. That important event ______ in 1945.
A. happened B. happening C. was happened D. has happened
33. She was having a rest when the volcano _______ .
A. erupted B. flew C. flowed D. broke
34. Two hundred people died in that volcano ______.
A. corruption B. eruption C. destruction D. reduction
35. Tidal waves are the result of an _______ shift in the underwater movement of the Earth .
A. amazing B. alternative C. abrupt D. unpleasant
36.________are funnel-shaped storms passing overland below a thunderstorm.
A. Earthquakes B. Tropical storms C. Hurricanes D. Tornadoes
37. In 1995 , a huge earthquake struck Kobe city in Japan and caused severe _______
A. damage B. destruction C. shift D. collapse
38. The earthquake _______ the city at 2 this morning
A. occurred B. hit C. swept D. measured
39. Thousands of people were saved because scientists had__them about the volcanic eruption.
A. said B. spoke C. warned D. talked
40. A tropical storm which reaches 120 kilometers an hour is called a _______ in North and South America.
A. typhoon B. cyclone C. hurricane D. tornado
41. Ninety percent of earthquakes occur _______ the Pacific Rim.
A. around B. at C. in D. about
42. The roof ________ under the weight of snow last night.
A. collapsed B. fell C. dropped D. flew
43. A tornado looks like a big, dark _______ coming from the bottom of a storm cloud.
A. funnel B. bowl C. mushroom D. cloud
44. Early warnings about tornadoes could save many __________.
A.lives B. life C. living D. things
45. Yesterday a typhoon _________ a coastal city in the country.
A. hit B. strike C.collapsed D. predicted
46. People can know when a volcano will ________ nowadays, can't they ?
A. break B. warn C. erupt D. seek
47. A tropical storm is called a hurricane in North and South America when it _____ 120 kilometers per hour.
A. reaches B. goes C. gets D. comes
48. A ____ is a very large wave.
A. tidal wave B. tsunami C. tornado D. a and b are correct.
49. A / An __________ is a sudden strong shaking of the ground.
A. snowstorm B. tidal wave C. earthquake D. volcano.
50. A _______ is a tropical storm with strong winds.
A. typhoon B. tornado C. volcano D. tsunami
3 Choose the correct answer to complete the sentence :
1 . Huong went to Hanoi last week . She . . . . . . . . . . . . . . there once a few years ago .
A . was B . was being C . has been D . is
2 . I don ' t study enough for the examination . I wish I . . . . . . . . . . . . . . . . . harder .
A . studied B . have studied C . study D . studies
3 . I am a teacher , . . . . . . . ?
A . amn ' t B . aml C . aren ' t . D . aren ' t we
4 . Everything is expensive here , . . . . … . . . . . . . ?
A . is it B . isn ' t it C . are they D . aren ' t they
5 . Everybody likes to be independent , . . . . . . . . . . . . . . ?
A . is he B . are they C . aren ' t they D . don ' t they
6 . She rarely went to the cinema , . . . . . . . . . . . .
A . did she B . didn ' t she C . did they D . didn ' t they
7 . She . . . . . . . . . . . . . . the cold climate .
A . used to B . get used to C . got used to D . has used to
8 . She will buy a new house when she . . . . . . . . . . . . . . a doctor in the future .
A . become B . becomes | C . became D . will become
9 . Going abroad is going to a . . . . . . . . . . . . . . . . . country .
A . familiar B . wonderful - C . foreign D . economical
10 . We are going to visit Ha Long Bay . . . . . . . . . . . . . . is one of the most interesting places of the North
. A . who B . which C . where | D . whom
11 . Hoa and her dog . . . . . . . . . . . . . are standing over there go to the park every Sunday morning .
A . that B . who C . which D . whom
12 . She looks forward . . . seeing her husband coming back soon
A . at D . with • B . on C . to
13 . Mount Pinatubo ……. erupted in 1991 is in the Philippines ,
| D . who B . which C . when A . whom . .
14 . Hundreds of people died in that volcanic eruption . . . . . . . . . . . . had been warmed before
. A . whom B . which C . when D . who
15 . Tornadoes can suck anything . . . . . . . . is in their path .
A, who B . whom C . where | D . that
16 . The huge earthquake . . . struck the city of Kobe in Japan killed a large number of people . A . who | B , that C . where D . whom
17 . The eruption of Mount Vesuvius in AD79 destroyed Pompeii…. was an ancient city of Italy
A . who B . where | C . which D . when
18 . The children . . . . . . . . . . . . . . are playing in the back yard are Mr . Ba ’ s nephews .
A.who B . that . C . which D . whose
19 . Vietnam . . . . . . . . . . . . . . is in the Southeast Asian is considered the pearl of the region .
A . which B . who | C . where D . whom
20 . Mount Everest is the word ' s ………mountain
A . high B . higher C . highest D . highly
UNIT 10: LIFE ON OTHER PLANETS
TEST 1
I. Pick out the word whose underlined part is pronounced differently from the others.
1. A. leather B. neat C. cream D. dream
2. A. colour B. toe C. go D. hole
3. A. light B. time C. price D. bring
4. A. false B. talk C. salad D. all
5. A. wait B. train C. said D. paid
II. Pick out one word which has the stress syllable different from those of the others.
1. A. spacecraft B. experienced C. plannet D. scientist
2. A. object B. evidence C. impossible D. alien
3. A. disappointed B. prisoner C. microorganism D. conclusion
4. A. example B. marvelous C. gemstone D. mineral
5. A. pesticide B. category C. profitable D. linguistics
III. Choose the word that best fit each of the following sentences.
1. Nowadays, the ___ can warn the eruption of the earthquakes
A. science B. scientists C. scientific D. scientifically
2. Mount Pinatubo, ___ is a volcano in the Philippines, erupted in 1991.
A. who B. whom C. which D. whose
3. Ninety percent of ___ occurred around the Pacific Rim known as the “ Ring of Fire”
A. earthquakes B. typhoon C. thunderstorm D. tornadoes
4. The bike ___ is used at the circus has only one wheel.
A. who B. which C. whose D. where
5. Please bring a raincoat just __ case.
A. in B. at C. on D. to
6. “Tsunami” is a Japanese word. This word means “harbor wave”.
A. “Tsunami” is a Japanese word which it means “harbor wave”.
B. “Tsunami” is a Japanese word it means “harbor wave”.
C. “Tsunami” is a Japanese word which means “harbor wave”.
D. “Tsunami” means “harbor wave” is a Japanese word.
7. Sue lives in the house. The house is opposite my house.
A. Sue lives in the house it is opposite my house.
B. Sue lives in the house which opposite my house.
C. Sue lives in the house which is opposite her house.
D. Sue lives in the house which is opposite my house.
8. The plants live on that island may develop differently.
A. The plants live on that island may develop differently.
B. The plants that live on that island may develop differently.
C. The plants which lives on that island may develop differently.
D. The plants that on that island may develop different.
9. Etna is an active volcano. The volcano is on the island of Sicily.
A. Etna, which is on the island of Sicily, is an active volcano.
B. Etna which is on the island of Sicily, is an active volcano.
C. Etna, which is on the island of Sicily is an active volcano.
D. Etna, which is on the island of Sicily, is active volcano.
10. You saw that smoke. It came from the hills.
A. You saw the smoke which comes from the hills.
B. You saw smoke which came from the hills.
C. You saw the smoke that came from the hills.
D. You saw the smoke came from the hills.
11. The boy of_______ you made fun is my cousin.
A. who B. whose C. whom D. that
12. It was the nurse _______ told me to come in.
A. who B. whom C. whose D. that
13. I’m very busy, so please don’t disturb me _______ it’s urgent.
A. while B. unless C. if D. since
14. I have always wanted to visit Kuala Lumpur, _______ capital of Malaysia.
A. is the B. that is the C. which the D. the
15. I saw a thief take Mary’s purse so I ran _______ him but I couldn’t catch him.
A. after B. over C. near D. into
16. We never find out the reason _______ Tom didn’t get that job.
A. which B. that C. why D. how
17. There was a thunderstorm _______ the plane went on flying.
A. and B. but C. so D. though
18. Which is the kind of language _______ is used by def and dump people.
A. which B. that C. who D. Both A & B
19. In Australia, a tropical storm is known as a _______
A. hurricane B. tornado C. cyclone D. typhoon
20. The temple was destroyed in the violent _______ of 1470 BC.
A. erupt B. eruption C. erupting D. erupts
21. Friends are people _______ close to us.
A. who are B. who is C. which is D. which are
22. The building was _______ damaged by fire.
A. extensive B. extent C. extension D. extensively
23. The man _______ opinions I respect most is my father.
A. who B. whom C. whose D. that
24. Daddy, it’s the weather forecast _______ TV.
A. in B. on C. to D. at
25. Don’t worry, everything is _______ control.
A. under B. without C. in D. at
26. Please hurry. We need these documents _______ delay.
A. under B. without C. in D. at
27. We thought the two films were very similar _______ a great extent.
A. to B. with C. at D. in
28. Police officers don’t have to wear uniform when they are ______ duty.
A. on B. in C. of D. off
29. Hue will have temperatures _______ 230 C and 270 C.
A. at B. between C. in D. with
30. I am preparing for the picnic_______ my friends tomorrow.
A. at B. to C. in D. with
31. Please bring some raincoats just_______ case.
A. at B. in C. on D. to
32. This is the first time I _______ to play badminton.
A. have tried B. am trying C. was trying D. would be try
33. It cost approximately 200 dollars.
A. exactly B. at least C. mare than D. about
34. She occasionally visits her little country house.
A. seldom B. rarely C. hardly ever D. now and then
35. The final _______ of the play will take place on Monday.
A. action B. performance C. view D. sight
36. London is _______ of England.
A. capital B. a capital C. an capital D. the capital
37. Our people live _______ than before the war.
A. well B. the best C. as well D. better
38. She said that she _______ you some day.
A. had visited B. has visited C. will visited D. would visit
39. He asked me How my brother was. “How _______ ?” He asked me
A. is your brother B. your brother was C. your brother is D. was your brother
40. Lan will miss the bus ________ she hurry up
A. if B. when C. why D. unless
41. Have you ever thought of an exciting trip to nowhere, a trip ________?
A. to the world B. to the sea C. to space D. to the earth
42. If you decide to take the trip, you’ll have ________ a few months.
A. to get willing B. to be hard C. to get ready D. to be unwilling
43. You should run a lot, swim everyday. You must be in excellent ________ condition.
A. mental B. optional C. total D. physical
44. You must get a letter from the doctor that shows you are in perfect ________.
A. health B. healthy C. healthful D. healthily
45. Once you get on the trip, you‘ll be in a different world. You’ll see ______ of the earth.
A. photo B. posters C. pictures D. postcards
46. You may also find you country and other ________ places.
A. interest B. interested C. interesting D. uninteresting
47. You will be able to see the wonders of ________ : oceans, rivers, mountains.
A. nature B. structures C. buildings D. constructions
48. Pilots must know about the weather or they can’t land and________.
A. take into B. get into C. take up D. take off
49. You ________ eat these mushrooms. They are poisonous.
A. needn’t B. mustn’t C. can’t D. may not
50. If Ba _______ his lunch, he’ll be hungry at lunchtime.
A. forgot B. can forget C. forgets D. forget
IV. Each sentence has a mistake find and correct it.
1. Having studied in English for three years, Lan is used to speak => speaking English with her classmate.
2. Sarah was the more=> most capable of the three girls who took part in the play.
3. They study=> have studied English for several years.
4. They work hardly=> hard from morning till night.
5. Nam’s father is accustomed to stay=> staying up late typing his documents.
6. His teacher doesn’t allow=>allow students to talk in class.
7. There were so much=> many people that there weren’t enough seat for every one.
8. They are believing=> believe in the story that he is making up.
9. He left the room without to say=> saying a word.
10. Lan wishes that she went=> had gone to the party last night.
V. Choose A, B, C or D to complete the following passage:
Do you want to plan for some kind of exciting trip? Do you have a million dollars? Are you very healthy? Are you a good traveler ? Do you want to go to nowhere? Then you can have a trip to space.
If you ___(1) __ to take the trip, you will have to get ready a few months before the flight. You must be in excellent ___(2) ___ condition. You should run a lot, swim every day, and do ___(3)__ and push-ups. You must get a letter from the doctor that shows you are in ___(4)__ health.
Once you get on the trip, you will be in a different world. You will see pictures of the Earth. You may also find your country and other ___(5)___ places. You will be able to see the oceans, the big rivers and the tall mountains.
When you are in __(6)__, you will not weigh anything. You will feel totally free and enjoy the wonderful __(7)__ you have never had before. If you __(8)__ on board now, you would experience those marvelous things.
1. A. decided B. deciding C. decides D. decide
2. A physics B. physician C. physical D. physicist
3. A homework B. housework C. aerobics D. cooking
4. A bad B. perfect C. sick D. well
5. A. interest B. interested C. interesting D. interests
6. A orbit B. class C. place D world
7. A feel B. feeling C. felt D. fill
8. A are B. is C. am D. were
VI. Put the verb in the right form and tense
1.Does She (go) ______go__________ to school at 6:30 everyday?
2. He (learn) ____has learnt______ English since 1992. He is doing his homework in the living room.
3. Five years ago, he (live) __lived___________ in the country with his parents.
4. She (work) ___is working____ in her garden with her brother now.
5. It is very (health) ____healthy______ to live in a damp room.
6. Do you have a (nation) ____national____ costume in your country?
7. What is the (long) ____length_______ of the runway at this airport?
8. I feel so (sleep) ___sleepy_______ I’m going to bed.
9. They’re going to announce the (arrive)__arrival____ of the Prince.
10. It’s difficult (make) _____to make______ friends in a new school.
VII. Rewrite these following sentences keep meaning as the root ones
1. He didn’t hurry, so he missed the train.
à If ……he had hurried, he wouldn't have missed the train……
2. Unless you water these plants eveyday, they will die.
à If ………you don't water these plants everyday, they will die……
3. He will die if nobody brings him to the hospital.
à Unless ……somebody brings him to th hospital, he will die…….
4. She didn’t take your advice , so she failed in her exam.
à If..she had taken your advice, she wouldn't have failed in her exam.
5. Unless you water those flowers regularly, they will wither.
à If you ……don't water those flowers regularly,they will wither…
6. Without a passport, she couldn’t have left the country.
à If …it hadn't been for a passport, she couldn't have left the country …
7. The garage is going to repair the car for us next week.
à We are going to ………the garage repair the car next week……
8. Although his leg was broken, he managed to get out of the car.
à In spite……of his broken leg, he managed to get out of the car…
9. I can’t cook as well as my mother does.
à My mother …………cooks better than I do……
10. The fire has destroyed many houses.
à Many houses……have been destroyed by the fire……
11. She won’t visit me again.
à I wish ………she would visit me again……………
12. He wrote the letter in two hours.
à It took …………him two hours to write the letter………………
13. It was such hot tea that I couldn’t drink it.
à The tea ………was so hot that I couldn't drink it …………
, I. Choose A, B, C, D to Complete the following sentences:
1. Mount Pinatubo,……. Is a volcano in the Philippines, erupted in 1991
A. which who C. whom D. whose
2. Tornadoes and funnel-shaped storms can suck up anything ……….is in their path
A. who B. whom C, that D. whose
3. We…… since we left school
A. don't meet B. didn't meet C.won't meet D haven't met
4. Ill bring some raincoats just in case. I hope my friends……….. laugh at me.
A. didn't B won't C. don't D. haven't
5. In 1995, a huge earthquake…..the city os Kobe in Japan
A. strike B. struck C. striking D. striked
6. Tidal waves……..the result of an abrupt shift in the underwater movement of the Earth.
B. were C. is D. was A. are
7. I can't hear what you are saying. Can you…………….. the radio?
C. turn up D. turn over A. turn on B. turn off
8. Neil Armstrong,……… walked on the moon, lived in the USA.
A. which B. whom C.who D. whose
9. Marie Curie, ..............is one of the greatest women in our time, discovered radium.
A. whom B. whose C. which D.who
10. The men and the elephants............ you saw on TV last night are from Africa.
C. whom D. who A. which B. that
1 she gave a talk on ......................... wild animals that are rare nowadays a protecing b to protect c protection d protected
2 the diameter of an average ........................is only about 4 kilometers a tidal wave b tornado c volcano d typhoon
3 she hopes her friends will not laugh ....................her a in b to c with d at
4 which animal in vietnam ..............................to be the logo of sea games 2003 ? a will be chosen b will choose c was chosen d chose
5 every year earthquakes are responsible ............................. a large number of heat
hs a for bwith c about d to
6 it is many years .........................mount vesuvius last erupted a for b when c since d which
22. Do you know the man __________ you met yesterday?
A. which B. who C. whom D. whose
23. Mount Pinatubo,__________ is a volcano in Philippines, erupted in 1991.
A. which B. that C. who D. whose
24. She doesn’t know the man ___________ sent her that letter .
A which B. who C. whom D. whose
25. He is the man ___________ helped me yesterday
A which B. who C. whom D. whose
26.Have you seen the place ……..the wedding ceremony will be held ?
A. which B. where C. in where D. is where
27. He wanted to know the reason………. I had turned down his invitation.
A. what B. why C. when D. which
28. I prefer to go to Da Lat in winter……. There are fewer tourists about.
A. which B. that C. where D. when
29. I don’t like having meals in a restaurant……….doesn’t display a menu.
A. where B. which C. who D. whom
30. She was the first person…….broke the silence in the meeting.
A. that B. who C. whom D. whose
III. Choose the word that best fit each of the following sentences.
1. Nowadays, the ___ can warn the eruption of the earthquakes
A. science B. scientists C. scientific D. scientifically
2. Mount Pinatubo, ___ is a volcano in the Philippines, erupted in 1991.
A. who B. whom C. which D. whose
3. Ninety percent of ___ occurred around the Pacific Rim known as the “ Ring of Fire”
A. earthquakes B. typhoon C. thunderstorm D. tornadoes
4. The bike ___ is used at the circus has only one wheel.
A. who B. which C. whose D. where
5. Please bring a raincoat just __ case.
A. in B. at C. on D. to
6. “Tsunami” is a Japanese word. This word means “harbor wave”.
A. “Tsunami” is a Japanese word which it means “harbor wave”.
B. “Tsunami” is a Japanese word it means “harbor wave”.
C. “Tsunami” is a Japanese word which means “harbor wave”.
D. “Tsunami” means “harbor wave” is a Japanese word.
7.Sue lives in the house. The house is opposite my house.
A. Sue lives in the house it is opposite my house.
B. Sue lives in the house which opposite my house.
C. Sue lives in the house which is opposite her house.
D. Sue lives in the house which is opposite my house.
8.The plants live on that island may develop differently.
A. The plants live on that island may develop differently.
B. The plants that live on that island may develop differently.
C. The plants which lives on that island may develop differently.
D. The plants that on that island may develop different.
9.Etna is an active volcano. The volcano is on the island of Sicily.
A. Etna, which is on the island of Sicily, is an active volcano.
B. Etna which is on the island of Sicily, is an active volcano.
C. Etna, which is on the island of Sicily is an active volcano.
D. Etna, which is on the island of Sicily, is active volcano.
10. You saw that smoke. It came from the hills.
A. You saw the smoke which comes from the hills.
B. You saw smoke which came from the hills.
C. You saw the smoke that came from the hills.
D. You saw the smoke came from the hills.
11. The boy of_______ you made fun is my cousin.
A. who B. whose C. whom D. that
12. It was the nurse _______ told me to come in.
A. who B. whom C. whose D. that
13. I’m very busy, so please don’t disturb me _______ it’s urgent.
A. while B. unless C. if D. since
14. I have always wanted to visit Kuala Lumpur, _______ capital of Malaysia.
A. is the B. that is the C. which the D. the
15. I saw a thief take Mary’s purse so I ran _______ him but I couldn’t catch him.
A. after B. over C. near D. into
16. We never find out the reason _______ Tom didn’t get that job.
A. which B. that C. why D. how
17. There was a thunderstorm _______ the plane went on flying.
A. and B. but C. so D. though
18. Which is the kind of language _______ is used by def and dump people.
A. which B. that C. who D. Both A & B
19. In Australia, a tropical storm is known as a _______
A. hurricane B. tornado C. cyclone D. typhoon
20. The temple was destroyed in the violent _______ of 1470 BC.
A. erupt B. eruption C. erupting D. erupts
21. Friends are people _______ close to us.
A. who are B. who is C. which is D. which are
22. The building was _______ damaged by fire.
A. extensive B. extent C. extension D. extensively
23. The man _______ opinions I respect most is my father.
A. who B. whom C. whose D. that
24. Daddy, it’s the weather forecast _______ TV.
A. in B. on C. to D. at
25. Don’t worry, everything is _______ control.
A. under B. without C. in D. at
26. Please hurry. We need these documents _______ delay.
A. under B. without C. in D. at
27. We thought the two films were very similar _______ a great extent.
A. to B. with C. at D. in
28. Police officers don’t have to wear uniform when they are ______ duty.
A. on B. in C. of D. off
29. Hue will have temperatures _______ 230 C and 270 C.
A. at B. between C. in D. with
30. I am preparing for the picnic_______ my friends tomorrow.
A. at B. to C. in D. with
31. Please bring some raincoats just_______ case.
A. at B. in C. on D. to
32. This is the first time I _______ to play badminton.
A. have tried B. am trying C. was trying D. would be try
33. It cost approximately 200 dollars.
A. exactly B. at least C. more than D. about
34. She occasionally visits her little country house.
A. seldom B. rarely C. hardly ever D. now and then
35. The final _______ of the play will take place on Monday.
A. action B. performance C. view D. sight
36. London is _______ of England.
A. capital B. a capital C. an capital D. the capital
37. Our people live _______ than before the war.
A. well B. the best C. as well D. better
38. She said that she _______ you some day.
A. had visited B. has visited C. will visited D. would visit
39. He asked me How my brother was. “How _______ ?” He asked me
A. is your brother B. your brother was C. your brother is D. was your brother
40. Lan will miss the bus ________ she hurries up
A. if B. when C. why D. unless
41. Have you ever thought of an exciting trip to nowhere, a trip ________?
A. to the world B. to the sea C. to space D. to the earth
42. If you decide to take the trip, you’ll have ________ a few months.
A. to get willing B. to be hard C. to get ready D. to be unwilling
43. You should run a lot, swim everyday. You must be in excellent ________ condition.
A. mental B. optional C. total D. physical
44. You must get a letter from the doctor that shows you are in perfect ________.
A. health B. healthy C. healthful D. healthily
45. Once you get on the trip, you ‘ll be in a different world. You’ll see ______ of the earth.
A. photo B. posters C. pictures D. postcards
46. You may also find your country and other ________ places.
A. interest B. interested C. interesting D. uninteresting
47. You will be able to see the wonders of ________ : oceans, rivers, mountains.
A. nature B. structures C. buildings D. constructions
48. Pilots must know about the weather or they can’t land and________.
A. take into B. get into C. take up D. take off
49. You ________ eat these mushrooms. They are poisonous.
A. needn’t B. mustn’t C. can’t D. may not
50. If Ba _______ his lunch, he’ll be hungry at lunchtime.
A. forgot B. can forget C. forgets D. forget