Most whales must come up for air after several minutes, a few can stay under water for an hour or more.A．whileB．orC．forD．so 题目和参考答案——青夏教育精英家教网—

题目内容

Most whales must come up for air after several minutes, _______ a few can stay under water for an hour or more.

A．while

B．or

C．for

D．so

解析试题分析：考查连词辨析。A然而；B或者，否则；C因为；D于是；句意：大部分的鲸鱼每几分钟都需要上浮来呼吸空气，然而一些鲸鱼却可以在水下一个多小时。根据句意while表示轻微的转折。
考点：考查连词辨析
点评：连词的词义辨析要根据上下文的语境来辨析。要特别注意一词多义的现象，如while可以表示当…时；然而；尽管；要根据上下文的语义来进行。

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The 16-year-old girl Jessica Watson is said to be the youngest person to sail non-stop alone around the world. But her record has been questioned because someone thought that she has not sailed far enough. She will also not be recognized by the World Speed Sailing Record Council, as it was too dangerous for someone under 18 years old.

Ms Watson sailed into Sydney port on Saturday, seven months after leaving on a hard voyage. Family, friends and Australian Prime Minister Kevin Rudd have gathered to greet her. Thousands of well-wishers waited at the port and watched from boats as Ms Watson sailed her pink, 10m boat over the finishing line. Many more Australians watched the event broadcast live on television. Watson said she was just an “ordinary girl who believed in her dream”.

Ms Watson left Sydney on 18 October, despite that some people disagreed her plan. Watson traveled northeast through the South Pacific and across the equator (赤道), south to Cape Horn at the tip of South America, across the Atlantic Ocean to South Africa, through the Indian Ocean and around southern Australia. The route took her through some of the world’s most changeful waters, and she battled through huge storms and suffered seven accidents of her boat.

People around the world have followed Ms Watson’s adventures on her blog, which she has daily updated (更新). On her blog, she wrote down beautiful sunrise over seas, the excitement of meeting a blue whale and the bright, terrible sight of a shooting star flying across the night sky above her boat. Ms Watson has reportedly sold her story to a news company for $700,000. She is planning to write a book on her experience.

Which of the following oceans didn’t Ms Watson cross through in her voyage?

A. The Pacific Ocean B. The Atlantic Ocean

C. The Indian Ocean D. The Arctic Ocean.

Ms Watson’s voyage will NOT be considered an official world record mainly because ____.

A. no one can prove that her route was dangerous enough

B. she hasn’t applied for the record

C. girls are not allowed to take part in the dangerous sports

D. teenagers re not encouraged to take such a dangerous adventure

We can make a conclusion from this passage that Watson ____.

A. would make another voyage for money

B. made the world round voyage for money

C. had no way to communicate with others during the voyage.

D. is so confident and brave that she could overcome troubles on her own

All the following can be inferred from this passage EXCEPT that ____.

A. her book about her voyage is a best seller

B. people in Australia had much interest in her voyage

C. she spent more than 200 days alone at sea

D. people have different attitudes towards her voyage

I once experienced an unforgettable trip to Gloucester to see some of the world’s most beautiful and exciting animals in their own habitat(栖息地), the North Atlantic Ocean.

After a long trip by bus, we got on the ship. After a while, we stopped and everyone began to shout because we saw a humpback whale（座头鲸）. It was wonderful. Sometimes, whales came so close to the ship that you thought you could easily touch them.

While we were watching the whales, a guide was giving us some information about them, She told us that we saw only two kinds of whales- 50 foot humpback whales (singing whales) and 70-foot finback whales(the second largest whales on earth). She also said we could easily recognize a whale by its tail because every whale has a different kind of tail just like people have different fingerprints.

They all have names,and on this trip we saw “Salt” and “Pepper”, two whales named by a biologist and a fisherman. They were swimming toghter all the time.

I took twenty-seven photos,but it was very hard to take them because the whales were quick and stayed on the surface of the ocean just for a short time. It was really something. It was one of the chances that a person hardly ever experiences in life, but I had that chance.

This passage is mainly about _________________.

A an unforgettable experience in the forest

B an unforgettable trip to see some strange animals in the mountains

C a long trip on the ship

D an unforgettable trip to watch whales

Everyone on the ship began to shout because_____________.

A a whale came so close to the ship

B they saw a singing whale

C they saw a finback whale

D they could touch the whale

When they were watching the whales, __________________.

A some of them fed the whales

B they found several kinds of whales

C a guide told them something about the whales

D some of them took many photos and touched the whales

How can we recognize a whale?

A By its tail B By its head

C By its neck D By its eyes

Sitting on the peaceful coast of Galapagos Islands, Ecuador, watching the sun move quietly into the sea, you shouldn’t forget that Charles Darwin (1809-1882) arrived here in 1835. He stayed on the islands for five weeks, observing various animals. This finally inspired his famous work, On the Origin of Species. You can certainly follow Darwin’s footsteps and enjoy a trip from four to seven days to the islands.

The islands are certainly a paradise (天堂) for wildlife, as there are no natural killers on the islands and the number of boats and visitors is under government control. Though you cannot walk freely as Darwin did about 200 years ago, each day is as impressive as it could be.

The most well-known animals of the Galapagos is the giant tortoise，which can be seen moving slowly around Santa Cruz, the second largest island in the archipelago(群岛). Some of these creatures are so old that they might have been in their youth by Darwin himself.

Despite strict control over activities and timing, your stay on the Galapagos will be remembered as a chain of incomparable pictures; diving with sea lions that swim and play within inches of you; feeling small sharks touch your feet as you swim; and most magically, seeing a whale and her baby surface with a great breath of air.

Travelling between the islands and observing the wildlife that so inspired Darwin, you will feel as though you are getting a special view of an untouched world. At night you will sleep on board the ship, leaving the wildlife in complete occupation of the islands, which are as undisturbed now as they have been since the beginning of time.

What do we know about Darwin’s visit to the islands?

A. He studied different creatures on the islands

B. He completed his famous book on the islands

C. He was touched by the geography of the islands

D. He was attracted by well-known animals of the islands

Which of the following plays a role in making the islands “a paradise for wildlife”?

A. Animals on the islands feed on grass.

B. Local government forbids killing wildlife.

C. People cannot visit the islands as they wish.

D. Tourists are not allowed to touch the animals.

Your stay on the islands will be most impressive mainly because of .

A. the beautiful sea views B. Darwin’s inspiring trip

C. a closer view of animals D. various daring activities

How many kinds of animals are mentioned in this passage?

A. 2 B. 3 C. 4 D. 5

Which of the following would be the best title for the passage ？

A. A Unique Attraction for wildlife Lovers

B. Calapagos as a Paradise for Adventures

C. Charles Darwin as a symbol of Galapagos

D. A successful Example of wildlife protection

Are you afraid of sharks? You shouldn’t be! Below we cleared up the main myths about one of the world’s most perfectly formed creatures …

All sharks are the same.

This is absolutely not true. There are nearly four hundred species of sharks and they vary widely in habitat, size, features, diet and lifestyle. They range from the cigar shark, which is about 15 centimetres long, to the whale shark, which can be up to about nine meters long. More than 50 percent of sharks are less than a metre long and more than 90 percent are less than two metres long. And their habitat ranges from shallow to deep water and from the Arctic to the Tropic.

___________________

This is not true, either. In fact, many shark populations are decreasing. The chief reason for this is that hundreds of thousands of them are caught in fishing nets. Depending on where they are caught. They are either killed for their fins(鳍), which are used in shark’s fin soup, or they are tossed back into the sea because they are unwanted. Almost all sharks which are discarded in this way die. Also, sharks mature late in life and produce very few young. If the current reduction in numbers continues, the ecological balance of the oceans will be severely threatened.

Sharks will always attack you

This is nonsense. The chances of being attacked by a shark are minimal. You are 250 times more likely to be killed by lightning than by a shark, and your chances of being killed by lightning are practically zero.

However, if you are planning to take a swim in shark territory, then follow these simple rules:

Avoid swimming at dawn or duck when visibility decreases.

Avoid areas where there are breaking waves. Turbulent(汹涌的) water makes it difficult for sharks to see and determine whether you are prey(猎物).

Do not wear jewellery in the water. Sharks are attracted to shiny fishes, and jewellery may resemble their scales(鳞片).

Do not swim near schools of small fish, which are the favorite food of some sharks.

68. The underlined word “myths” in the first paragraph means ____.

A. an idea or story that many people believe but which is not true

B. something that is impossible to understand or explain or about which little is known

C. a feeling of surprise

D. something that you are curious to know

69. From the passage we can learn sharks ____.

A. look alike B. are dangerous

C. usually live in deep sea D. hardly attack people

70. Which of the following is proper for the blank in the third paragraph?

A. Sharks’ fin soup is nutritious

B. There are too many sharks in the sea

C. Many shark populations are decreasing

D. Sharks produce many young

71. Which of the following rules should you follow when you’re going to swim in shark areas?

A. Don’t swim before day breaks.

B. Choose areas where there are big waves.

C. Wear something shiny when swimming.

D. Choose areas where there are many small fish.

Some mammals migrate（迁徒）. One of these is the caribou（驯鹿）. They travel to the tundra（苔原）every summer to eat the rich grasses that grow there. When the weather becomes cooler, they migrate to the warmer forests and spend the winter there. Another mammal that migrates is the humpback whale. They spend the winter in Hawaii, and the summer in the Arctic（北极的）waters. They travel to the Arctic to eat millions of small shrimp（虾）.

Anther habit that some animals have to survive the cold winter is called hibernation. Animals that hibernate, rest or sleep during the winter. While they are hibernating, their bodies use up the fat layer that they have put on by eating large amounts of food during the summer. Some animals that hibernate in the Arctic are small animals called lemmings（旅鼠）, squirrels（松鼠）and bears.

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A pack is a small group of animals that lives together. It is usually controlled by a head male and a female. All the members of the pack must obey them. Packs have a very definite social structure. Each animal in a pack has a different position, or importance. Animals in a pack are usually meat-eaters. They live together for protection and hunting purposes.

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A. travels to the Arctic for shrimp in summer

B. spends the winter in the Arctic

C. lives in Hawaii in summer

D. has the same living habits as the caribou

2.What kind of animal doesn’t hibernate in the Arctic?

A. The caribou. B. The bear. C. The squirrel. D. The lemming.

3. Caribou live in herds in order to .

A. use up their fat layer B. find food C. protect themselves D. hunt in packs

4. What do we know about pack life according to the last paragraph?

A. Animals in pack are usually grain-eaters.

B. All animals are in an equal position in a pack.

C. It is either controlled by a head mate or by a female.

D. Each animal has its own different role in a pack.

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