Question

Sharks have been around for hundreds of millions of years. 1       Some sharks live near the surface,some live deep in the water,and others on or near the ocean floor.

We tend to think of sharks as big dangerous creatures. We sometimes read about shark attacks in the newspapers,and in1975 the film Jaws terrified moviegoers with the story of a great white shark which attacked holiday makers in a small seaside town in the USA. 2       It can reach 6 metres in length and up to2,000 kilograms in weight. It has as many as3,000 needle sharp teeth,so it can sever (割断) a man's leg in a single bite.

But not all sharks are like the great white. 3       There are almost400 species of sharks and more than half of these are under a metre in length. The biggest sharks of all are not at all dangerous to humans. The basking shark and the whale shark grow to around 12 metres,but they are quite harmless.

4       Among all these sharks,the bull shark is the one that is most likely to attack people. It swims in very shallow waters where people swim. 5       Indeed you are far more likely to be killed by a dog or by bees than by a shark,and some scientists believe that sharks only attack people because they mistake them for their favourite food.

   A. The pigmy shark,for example,is only about 20 centimetres in length.

   B. Less than one hundred people are attacked by sharks each year.

   C. A shark is a large fish considered to be dangerous to humans.

   D. Only about 25species are dangerous to people.

   E. The great white is certainly a fearsome creature.

   F. We can never imagine such things can happen.

   G. They live in oceans and seas all over the world.

1.         2.         3.       4.          5.         

Answer 1

所有鲨鱼都具有攻击性吗？鲨鱼袭击人的情况是否很常见？阅读此文后，我们对这些问题可能有进一步的了解。

1. G考查总分关系。G项意思是："鲨鱼生活在世界各地的海洋里"；下文具体说道："有的鲨鱼生活在海洋的表层，有的生活在深水层，有的生活在靠近海底处"，因此，G项符合行文逻辑。

2. E考查评注关系。上文提到电影中大白鲨袭击人的情况，下文又说它的长度、重量以及有三千颗锋利的牙齿，能一口就咬断一个人的大腿，因此选项E"大白鲨的确是令人恐惧的生物"符合上下文语境。

3. A考查顺承关系。本段讲道：不是所有的鲨鱼都如此庞大，具有攻击性。这里列举的俾格米鲨与下文提到的400多种鲨鱼都具有体积小这一方面的共同之处_Q因此A选项符合语境_Q

4. D考查转折关系。上文说：不是所有的鲨鱼都具有攻击性，这里与上文形成转折关系，只有25种鲨鱼对人类具有攻击性。

5. B考查递进关系。每年被鲨鱼袭击的个案不足一百例，因此与被狗或蜜蜂袭击相比，被鲨鱼所袭的个案要少得多。故B选项符合题意。