() 2. The programme Running Man has been hot on screen recently some pop stars bring the audience a lot of fun.
A. until B. because C. though D. unless
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() 13. (2015 •绵阳) Last time,he offered to do my homework for me,but I.
A. refused B. refuse C. have refused D. will refuse
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() 13. — Tom looks sad. Maybe he his score in the maths exam. — I'm afraid so.
A. knows B. knew C. has known D. will know
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() 7. China Dream is a great way to gather people together and the fast development of our own country.
A. try out for B. fit for C. push for D. cheer for
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() 15. — Are you willing to live on Mars one day?
—It sounds exciting,but it still worries me.
A. Of course I am. B. I'm not sure. C. Why not? D. Are you joking?
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Is the whale the world’s largest fish? No. It looks like a fish,but it is not. Then what’s the world’s largest fish? It's the whale shark.
Although the whale shark is our biggest fish and lives in many seas around the world,few people have ever heard of it. Scientists have not studied whale sharks for very long. So we know little about them.
A whale shark is sometimes called “a gentle giant (温柔的巨人) ” It likes to be alone and doesn’t care a bit about divers or humans. The biggest whale shark weighed 55 ,500 kg and was nearly 20 metres long.
Inside its huge mouth are great numbers of very small teeth. To count all of them,you’ll need to do some maths. The whale shark’s teeth are arranged in rows. There are between eleven and thirteen rows on each jaw (颚) and around three hundred teeth in each row.
However,the whale shark rarely uses its teeth. It does not chew or bite its food. Large amounts of water is pulled into its mouth and then pushed out through its gills (鳃) .
For a few months every year,a group of whale sharks come to Ningaloo Reef,off West Australia.
This gives scientists a wonderful chance to study the large fish. Whale sharks do live in other seas of the world,but no one knows their population. It is possible that our biggest fish may need protecting. It is one of the reasons why scientists continue to learn about these gentle giants.
() 41. Little is known about whale sharks because scientists.
A. are not interested in learning about them.
B. find them too difficult to catch
C. do not know the best places to find them
D. have studied them for only a short time
() 42. Which sentence can tell us that whale sharks are gentle?
A. They have large mouths.
B. They keep away from humans.
C. They have many small teeth.
D. They live in many seas.
() 43. How does the writer help us know what the whale shark’s mouth looks like?
A. By giving reasons.
B. By describing colours.
C. By comparing sizes.
D. By using numbers.
() 44. The fifth paragraph is mainly about.
A. how a whale shark eats
B. what a whale shark eats
C. how different fish use their gills
D. what’s inside a whale shark’s mouth
() 45. Which of the following is the best title for the article?
A. Gentle giants B. The diary of a sailor
C. The largest animal D. My life on the sea
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