Question

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。（如果所用的答题卡没有E、F、G选项，则选E涂A、B，选F涂A、C，选G涂A、D。）

Sharks have lived in the world’s oceans for millions of years. A shark has a very good sense of smell. It can find small amounts of substances in water, such as blood, body liquids and chemicals produced by animals. These powerful senses help sharks find their food.    1.

Sharks grow slowly. About forty percent of all sharks lay eggs.    2.   Some sharks carry their young inside their bodies as humans do. Some sharks are not able to reproduce until they are twenty years old. Most reproduce only every two years. And they give birth to fewer than ten young sharks. For this reason, over-fishing of sharks is of special danger to the future of the animal.

3.   They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too great. This protects the plants and other forms of life that exist in the oceans.

People hunt sharks for sport, food, medicine and their skin. Experts say the international market for some kinds of sharks has increased because many parts of a shark are valuable.   4.   Shark liver oil is a popular source of Vitamin. The skin of a shark can be used like leather. In Asia, people enjoy a kind of soup made from shark fins. Experts say a fisherman can earn a lot of money for even one kilogram of shark fins.

Sharks are among the oldest animals on Earth.    5.  If too many sharks in one area are killed, the group of sharks may never return to normal population levels.

A. The others give birth to their young.

B. Sharks are important for the world’s oceans.

C. This is a threat to other forms of life in the ocean.

D. Collectors pay thousands of dollars for the jaws of a shark.

E. Sharks are valuable to us and we can make full use of them.

F. But some sharks are in danger of disappearing from Earth.

G. Sharks eat fish, other sharks, and plants that live in the ocean.

Answer

1.G

2.A

3.B

4.D

5.F

【解析】

试题分析:考察说明文。本文介绍了鲨鱼的有关信息，如鲨鱼的饮食，繁衍以及鲨鱼所处的现状。警告人们要注意保护鲨鱼，因为很多鲨鱼都处于灭绝的危险之中。

1.G考查对上下文的理解和推理判断能力。根据 前一句These powerful senses help them find their food.讲述的是鲨鱼敏锐的感觉可以帮助他们寻找到食物。接下来的这句就应该介绍鲨鱼的食物具体是什么，G选项Sharks eat fish, other sharks, and plants that live in the ocean.，符合，故选G。

2.A考查对上下文的理解和推理判断能力。根据前句About forty percent of the different kinds of sharks lay eggs说明讲述的是鲨鱼不同的繁衍方式。有的是产卵，有的是直接分娩出小鲨鱼，A选项The others give birth to their young.，符合，故选A。

3.B考查对上下文的理解和推理判断能力。 根据本段最后一句This protects the plants and other forms of life that exist in the oceans.可知鲨鱼可以保护海洋里其他的一项生物，说明本段讲述的是鲨鱼的重要性，B选项Sharks are important for the world’s oceans.，符合，故选B。

4.D考查对上下文的理解和推理判断能力。根据下句Shark liver oil is a popular source of Vitamin. The skin of a shark can be used like leather. 可知本段内容讲述的是鲨鱼的器官在市场上收到追捧，D选项Collectors pay thousands of dollars for the jaws of a shark.，符合，故选D。

5.

考点：考查信息匹配

【名师点拨】

高考七选五解题方法

1.通读全文，了解文章大意。这是一个泛读的过程，目的是了解文章大意，为以后的理解做铺垫。

2.分析句型，了解语法构成

3.当我们了解了文章大意后，要明确每一个空是填一个整句子还是半个句子。这一点十分重要，它能够帮助我们迅速确定某些空的选项范围，比如，有一个空的结尾处没有标点符号，后文紧跟着一个句子的后半部分，很显然这时我们需要填的是半个句子，这时便可以在七个选项中找到是半个句子的选项，从而缩小选择范围。比如37小题，根据上一句所有的鲨鱼中大约有40%是产卵的，说明还有一些不是产卵的，以及下一句有些鲨鱼和人类一样怀小宝宝，故选A。

4.明确关联关系。任何句子都是要么和上文有联系，要么和下文有联系，要么和上下文都有联系。比如36小题，根据上一句这些感官帮助他们找到食物，接下来的这句就应该介绍鲨鱼的食物具体是什么。故选G。

5.带入通读，复查

做完题目切忌直接离开，这是我们很有必要将自己修正好的文章通读一遍，将其看做一片行文通顺语意连贯的文章来读，这是如果感到有含义不连贯的地方，很有可能是我们填错了空，就要复查了，注意：七选五的特点在于，错一道，往往还会错另外的一道或几道，我们叫做"连错"，所以当你发现自己有一处填的有问题时，一定要同时检查其他空。