_________（48）A.disappearing into the water below.

外语类 2020-04-28 00:14:07 已帮助人

_________（48）

A.disappearing into the water below.

B.Why is it,then,that most people survive attacks by great whites?

C.they most often move in slowly and bite less hard.

D.There is reason to doubt that great whites see well enough to attack humans.

E.It has been thought that they mistake people for the seals or sea lions which make up a large part of their diet.

F.He looked down and was terrified to see a great white shark biting the front of his board.

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答案：B
" B.Why is it, then , that most people survive attacks by great whites ?"起承上启下的作用。前一句讲到它们可以轻易杀死并吃掉无助的落水者。该句的意思是：“但为什么大多数人受到大白鲨攻击之后都能鲨口逃生呢？”接着说，鲨鱼研究者们正在努力寻找使得人类鲨口脱险的原因。