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 (割斷) 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

所有鯊魚都具有攻擊性嗎？鯊魚襲擊人的情況是否很常見？閱讀此文后，我們對這些問題可能有進一步的了解。

1. G考查總分關系。G項意思是："鯊魚生活在世界各地的海洋里"；下文具體說道："有的鯊魚生活在海洋的表層，有的生活在深水層，有的生活在靠近海底處"，因此，G項符合行文邏輯。

2. E考查評注關系。上文提到電影中大白鯊襲擊人的情況，下文又說它的長度、重量以及有三千顆鋒利的牙齒，能一口就咬斷一個人的大腿，因此選項E"大白鯊的確是令人恐懼的生物"符合上下文語境。

3. A考查順承關系。本段講道：不是所有的鯊魚都如此龐大，具有攻擊性。這里列舉的俾格米鯊與下文提到的400多種鯊魚都具有體積小這一方面的共同之處_Q因此A選項符合語境_Q

4. D考查轉(zhuǎn)折關系。上文說：不是所有的鯊魚都具有攻擊性，這里與上文形成轉(zhuǎn)折關系，只有25種鯊魚對人類具有攻擊性。

5. B考查遞進關系。每年被鯊魚襲擊的個案不足一百例，因此與被狗或蜜蜂襲擊相比，被鯊魚所襲的個案要少得多。故B選項符合題意。