问题 选择题
Good heavens! There you are! We _____ anxious about you, and we _____ you back throughout the night.
A.are; expectB.were; had expected
C.have been; were expecting
D.are; were expecting
答案

答案:D

本题考查时态。首先排除A、D两个选项,因为从题干可知现在已经看到对方了,所以不担心了,担心是过去的状态。再看B项,第一个空格用过去时是可以的,但第二个空格用过去完成时had expected表示“本来期望”,显然与题意不符。D项的第一空用了现在完成时,表示状态从过去开始发生,到现在已完成,符合题意,现在已不担心,第二空用过去进行时,表示在过去的某段时间内一直持续的动作,“一直盼望你回来”,跟后面的时间状语throughout the night“整夜”相符。throughout后面还可接地点,如:throughout the world =" all" over the world,但all though后面只能接表示时间的名词,如:all through the night =" throughout" the night。

阅读理解

D

A team of scientists proved that seals had a very good sense of hearing. These men trained blind seals to expect food when they heard sounds. The seals always began snapping(猛咬) when a strong signal was sounded.

It was proved that even a soft signal, a considerable distance away, could make these sea animals respond. That should make the fisherman who makes much noise while working, or talks loudly, start thinking.

The same team of scientists also trained seals to recognize different sounds. One bell-tone meant food ,two bell-tones meant no food. In the beginning, the seals made mistakes when the two bell-tones were sounded. They were given a light tap after each mistake. The seals were good learners. They easily learned to tell the difference between the sounds.

67.Why was it necessary to use blind seals? Because they______.

A. were unable to use sight for clues    B. had better hearing

C. were waiting to be fed             D. were the only animals to be found

68. To those seals strong signal meant_____.

A. snapping     B. nothing      C. food       D. a light tap

69. The article doesn’t say directly but suggests that fishermen usually think______.

A. seals have no good sense of hearing   B. seals have good sense of hearing

C. seals can only recognize bell sounds   D. seals can not hear soft or long distant sounds

70. Which title will be the best to suit the article?

A. Clever Seals                      B. Smart Learners 

C. An Underwater School             D. An Unknown School

单项选择题