K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.Birds have evolved many physical attributes that contribute to their flying ability. Wings are important, but adjustable tails, large hearts and light bones play critical roles.To fly, birds, like airplanes, move air across their wings. Wings are designed so that air above the wings is forced to move faster than air below the wing. This creates...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Birds have evolved many physical attributes that contribute to their flying ability. Wings are important, but adjustable tails, large hearts and light bones play critical roles.

To fly, birds, like airplanes, move air across their wings. Wings are designed so that air above the wings is forced to move faster than air below the wing. This creates higher pressure under the wings, called lift, which pushes the bird up. Different wing types evolved for different ways of flying. Prolonged flight requires long wings and an ability to soar. Other birds need superior maneuverability. Finches and sparrows

have short, broad wings. Faster birds, like hawks, have built-in spoilers that reduce turbulence while flying. This allows a steeper angle of attack without stalling.

Tails have evolved for specialized use. The tail acts like a rudder helping birds steer. Birds brake by spreading out their tails as they land. This adaptation allows them to make sudden, controlled stops-an essential skill, since most birds need to land on individual branches or on prey.

Flight takes muscle strength. If body builders has wings, they still could not flap hard enough to leave the ground. Birds have large, specialized hearts that beat much faster than the human heart and provide the necessary oxygen to the muscles. The breast muscle accounts for 15 percent of the bird’s body weight. On pigeons, it accounts for a third of their total body weight.

Birds carry no excess baggage; they have hollow feathers and hollow bones with struts inside to maintain strength, like cross beams in a bridge. Birds fly to find prey, escape predators, and attract mates-in other words, to survive

According to the passage, what causes birds to rise when they start flying? 

A. Long wings with hollow feathers 

B. Higher air pressure below than above the wings 

C. Spreading out their tails 

D. Superior muscle strength 

1
5 tháng 4 2017

Chọn B

Kiến thức: Đọc hiểu

Giải thích:

Theo bài đọc, điều gì giúp nâng chim lên khi chúng bắt đầu bay?

  A. Cánh dài có lông rỗng                           

  B. Áp suất không khí bên dưới cánh cao hơn bên trên

  C. Việc xòe đuôi của chúng

  D. Sức lực cơ bắp vượt trội

Thông tin: This creates higher pressure under the wings, called lift, which pushes the bird up.

Tạm dịch: Điều này tạo ra áp lực lớn hơn ở dưới cánh, được gọi là lực nâng, đẩy chim lên

15 tháng 9 2018

Đáp án D

Giải thích: the number of + Động từ số ít => has

Dịch nghĩa: Thế giới đang trở nên công nghiệp hóa và số lượng giống loài động vật những con mà dần trở nên tuyệt chủng đang tăng

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.There is one planet that still fascinates and teases scientists mainly because it doesn’t have an atmosphere to obscure observation, yet it is not big enough for sufficiently accurate telescopic observation. The fact that it is also very close to the sun also makes it difficult for astronomers.However, space telescopes have told us a lot more about Mercury. It...
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

There is one planet that still fascinates and teases scientists mainly because it doesn’t have an atmosphere to obscure observation, yet it is not big enough for sufficiently accurate telescopic observation. The fact that it is also very close to the sun also makes it difficult for astronomers.

However, space telescopes have told us a lot more about Mercury. It is rather similar to Earth’s moon and to Mars. There are mountainous areas dotted with craters and large valleys which are uncratered. The moon’s valleys have fewer cracks and ridges are smoother. Mercury’s valleys are filled with volcanic rocks, similar to on the moon, yet there is no evidence of volcanoes, even extinct ones, on Mercury, as there is on the both Mars and the moon, and of course here on Earth.

So, scientists presume the valleys on Mercury were caused by different things, that is to say not by volcanoes, but by very large meteorites, which also caused the cracks in the terrain and left the ridges rough and uneven. More and better photos of Mercury are at present at best only hypotheses.

Question28. What is the main topic of this passage?

A. Astronomers’ difficulties. C. The Earth’s moon.

B. Observation of planets. D. The planet, Mercury

Question29. Why does Mercury still tease scientists?

A. Because it has an atmosphere which obscures observation.

B. Because it is too close to the sun.

C. Because it is difficult for space probes to get close to.

D. Because it is too small.

Question30. What is true about Mercury but not true about the moon or Mars?

A. The valleys are filled with volcanic rocks. C. There are no volcanoes.

B. The valleys are uncratered. D. They are hilly regions.

Question31. What does the author imply space telescopes can do better than land-based telescopes?

A. Show more of the planet, Mercury. C. Show what caused Mercury’s valleys.

B. Show the meteorites which hit Mercury. D. Show the volcanoes on Mercury. 

Question32. What can we infer from the passage that astronomers still need to get more detailed observation of Mercury?

A. More hypotheses C. Larger space telescopes.

B. Better and more space telescopes. D. More ways to prove hypotheses.

1
6 tháng 1 2022

Question28. What is the main topic of this passage?

A. Astronomers’ difficulties. C. The Earth’s moon.

B. Observation of planets. D. The planet, Mercury

Question29. Why does Mercury still tease scientists?

A. Because it has an atmosphere which obscures observation.

B. Because it is too close to the sun.

C. Because it is difficult for space probes to get close to.

D. Because it is too small.

Question30. What is true about Mercury but not true about the moon or Mars?

A. The valleys are filled with volcanic rocks. C. There are no volcanoes.

B. The valleys are uncratered. D. They are hilly regions.

Question31. What does the author imply space telescopes can do better than land-based telescopes?

A. Show more of the planet, Mercury. C. Show what caused Mercury’s valleys.

B. Show the meteorites which hit Mercury. D. Show the volcanoes on Mercury. 

Question32. What can we infer from the passage that astronomers still need to get more detailed observation of Mercury?

A. More hypotheses C. Larger space telescopes.

B. Better and more space telescopes. D. More ways to prove hypotheses.

. Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.                                                    The volume of traffic in many cities in the world today continues to expand. This caused many problems, including serious air pollution, lengthy delays, and the greater risk of accidents. Clearly, something must be done, but it is difficult to persuade people to change habits and leaves their cars at...
Đọc tiếp

. Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

                                                    

The volume of traffic in many cities in the world today continues to expand. This caused many problems, including serious air pollution, lengthy delays, and the greater risk of accidents. Clearly, something must be done, but it is difficult to persuade people to change habits and leaves their cars at home.

One possible approach is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who breaks the law. In addition, drivers could be required to pay for using particular routes at differ times of the day. This system, known as road pricing has already been introduced in a number of cities, using a special electronic card fixed to the windscreen of the car. Of course, the most important thing is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares kept at an acceptable level.

Glossary:          persuade (v.) (~ sb to do sth): thuyết phục (ai làm gì)

tough (adj.) = difficult; strict: khó; nghiêm khăc

 a tough fine: phạt tiền thật nặng reliable (adj.): đáng tin cậy

38. The word expand in paragraph 1 is closest in meaning to ____________________.

A. decrease                    B. increase                              C. reduce                    D. develop

39. Which of the following is NOT mentioned as a problem caused by more traffic?

A. serious air pollution                                          B. greater risks of accidents

C. people’s habits                                                  D. very long delays

40. The most important thing to encourage people to use public transport is _________________

A. high parking fees                                                                   B. good public transport

C. road using fees                                                                       D. high charges for public transport

41. The verb give up is closest in meaning to ______________________.

A. continue using               B. encourage                                   C. get bored with               D. stop using

42. We can learn from the text that  _______________.

A. it is easy for people to change their habits

B. many people will not drive expensive cars                           

C. more people will use public transport if it is cheap, reliable and comfortable

D. pollution and lengthy delays cause people to leave their cars at home

1
31 tháng 3 2022

38. B
39. C
40. B
41. D
42. D

26 tháng 9 2019

Đáp án: D

Giải thích: Mấu chốt của câu này là các em phải đọc hết đoạn cuối để suy ra cái mà tác giả muốn hướng tới: Con người phải đối mặt với sự lựa chọn khó khăn: sự sống của mình hay cứu lấy động vật.

7 tháng 4 2018

Đáp án: C

Giải thích: Chúng ta thấy câu C sai luôn khi đọc đến dòng 4, dòng 5 của đoạn 2.

• Read the following passage and mark the letter (A, B, C, or D) on your answer sheet to indicate the correct word that best fits each of the numbered blanks.                                                                                                        BERTHA Fifty feet below downtown Seattle, the world's largest (1) _________ machine, nicknamed Bertha after the city's (2) _________ mayor, lies still. This (3) _________  vehicle weighs 7,000 tons, stretches nearly 330 feet long, and...
Đọc tiếp

Read the following passage and mark the letter (A, B, C, or D) on your answer sheet to indicate the correct word that best fits each of the numbered blanks.

                                                                                                        BERTHA

 

Fifty feet below downtown Seattle, the world's largest (1) _________ machine, nicknamed Bertha after the city's (2) _________ mayor, lies still. This (3) _________  vehicle weighs 7,000 tons, stretches nearly 330 feet long, and has a 60-foot diameter. When fully (4) _________, Bertha has an intrepid crew of 25. In early August, Bertha began carving out a two-mile road tunnel to replace the Alaskan Way viaduct, an ugly double-decker motorway that has been (5) _________ Seattle's waterfront since the 1950s.

   Dozens of (6) _________ were considered, including twin tunnels, another elevated roadway, and even scrapping the highway in favor of improved surface roads and better public transport. As it happens, (7) _________ dithered long enough for tunneling technology to develop (8) _________ facilitating another option: a single tunnel large enough to accommodate two levels of multi-lane traffic. Many local (9) _________ are against Bertha, but she has already chewed up and spit out one politician. As the new mayor settles into his new role, he will surely be hoping that Bertha (10) __________ finds her appetite for muck, not mayors.

1, A. tunnel-drilling     B. drill-hole     C. tunnel-boring     D. soil-drilling

2, A. increasing     B. progressing     C. progressive     D. progression

3, A. remarkable     B. extraordinary     C. noteworthy     D. impressive

4, A. operating     B. operational     C. operative     D. postoperative

5, A. mutilating     B. disfigured     C. deformed     D. disfiguring

6, A. replacements     B. alternatives     C. surrogates     D. substitutions

7, A. politicians     B. legislators    C. lawmakers     D. policymakers

8, A. satisfactorily     B. abundantly     C. adequately     D. sufficiently

9, A. delegators     B. commissioners     C. legislatures     D. representatives

10, A. speedily     B. quickly     C. rapidly     D. precipitately

2
20 tháng 4 2021

1, A. tunnel-drilling     B. drill-hole     C. tunnel-boring     D. soil-drilling

2, A. increasing     B. progressing     C. progressive     D. progression

3, A. remarkable     B. extraordinary     C. noteworthy     D. impressive

4, A. operating     B. operational     C. operative     D. postoperative

5, A. mutilating     B. disfigured     C. deformed     D. disfiguring

6, A. replacements     B. alternatives     C. surrogates     D. substitutions

7, A. politicians     B. legislators    C. lawmakers     D. policymakers

8, A. satisfactorily     B. abundantly     C. adequately     D. sufficiently

9, A. delegators     B. commissioners     C. legislatures     D. representatives

10, A. speedily     B. quickly     C. rapidly     D. precipitately

5 tháng 6 2021

1,C

2,C

3,A

4,B

5,D

6,B

7,A

8,D

9,D

10,D.........

• Read the following passage and mark the letter (A, B, C, or D) on your answer sheet to indicate the correct word that best fits each of the numbered blanks.                                                                                                   REMOTE NATURAL ENVIRONMENT     With (1) .......................... transportation technologies, it is now possible to reach even the most distant regions in the world.    (2) .........................., I would contend that the merits of this...
Đọc tiếp

Read the following passage and mark the letter (A, B, C, or D) on your answer sheet to indicate the correct word that best fits each of the numbered blanks.

                                                                                                   REMOTE NATURAL ENVIRONMENT

     With (1) .......................... transportation technologies, it is now possible to reach even the most distant regions in the world.    (2) .........................., I would contend that the merits of this development are outweighed by its drawbacks. 

    (3) ..................., the ability to travel anywhere in the world offers (4) ................... benefits. At the outset, the discovery of new areas allows everyone to gain a better perception of the earth and new species. This newfound knowledge can act as a precursor to clinical (5) ................... or provide scientists with valuable insights to more effectively combat environmental issues such as climate change. Access to previously unreachable scenic beauty also suggests tourism opportunities, as travel enthusiasts are always on the lookout for new exotic getaways.

     Nonetheless, I believe the (6) ................... perspectives of this trend are eclipsed by more immediate threats to life in this remote natural world. More often than not, as major corporations set foot on and (7) .................... tourism in these areas, the construction of tourism facilities drives out the indigenous people living there. Hotels and recreational facilities emerged at the expense of the locals' accommodation. These people are (8) .................... assimilation, which, as history has indicated, results in the loss of civilizations and cultures. The presence of foreign visitors in these places also poses certain threats to the natural environment, specifically water contamination, land degradation, and natural resource depletion.

     In conclusion, (9) ........................ the thought of traveling to remote natural areas may sound, I conclude that they are better off left untouched.

1, A. the aid of                   B. the help of                 C. support of                  D. assistance of

2, A. That's why                 B. Nevertheless              C. Even though              D. All the same

3, A. On the one hand        B. Other way                  C. Moreover                   D. On one side

4, A. appreciable                B. substantial                 C. considerable              D. extensive

5, A. breakthroughs           B. steps forward             C. improvements           D. tapers off

6, A. constructive               B. favorable                   C. peremptory                D. positive

7, A. tap into                      B. expand                       C. exploit                       D. utilize

8, A. forced to                    B. coerced into               C. influenced by             D. pushed out

9, A. look interesting         B. as attractive as           C. as fascinating as        D. as exciting as

0
10 tháng 9 2018

Đáp án: A

Giải thích: Ở cuối câu 1 đoạn 2, tác giả có nhắc đến việc cách dùng chuẩn được chấp nhận bởi số đông mọi người ở bất kì hoàn cảnh nào, không cần tính đến mức độ trang trọng.

27 tháng 8 2021

c b a d

27 tháng 8 2021

25. C

26. B

27. C

28. D