[单项选择]Have you ever received ______ of what have happened to her
A. the word
B. words
C. word
D. the words

[单项选择]Look, what you have done! You ______ must have been move careful.
A. must
B. might
C. should
D. would

[单项选择]Have you ever received ______ of what has happened to her
A. the word
B. words
C. word
D. the words

[单项选择]If you have ever been without meat or other animal foods for some days or weeks, you that you tend to get physically rather weak.
A. will notice
B. will have noticed
C. would notice
D. would have noticed

[单项选择]Thank you for what you have done for us, which leads to quick improvement in our research work.
A. 由于你们的帮助，我们才取得了研究的进展。
B. 感谢你们所做的一切，这使我们的研究工作得以开展。
C. 谢谢你为我们做的一切，它使我们的研究工作迅速得到改进。
D. 我们的研究工作所取得的进展要感谢您为我们所作出的一切。

[单项选择]If you are not happy with what you have got now, what makes you think that you will be happier with ______
A. anything
B. some
C. more
D. less

[单项选择]You should be content ______ what you have.
A. to
B. about
C. with
D. for

[单项选择]Have you ever bought something just because the salesmen _________ it
A. talked you from
B. talked you into
C. talked you in
D. talked to

[单项选择]

Have you ever wondered why different animals or pests have their particular colors Colors in them seem to be used mainly to protect themselves.
Birds, especially seagulls, are very fond of locusts, but birds cannot easily catch locusts because locusts change their colors together with the change of the color of crops. When crops are green, locusts look green. But when crops are ripe, locusts take on exactly the same brown color as crops have. Some other pests with different colors from plants are usually easily found and eaten by their enemies. So they have to hide themselves in terror for lives and appear only at night.
If you study the animal life in any part of the world, you will find the main use of coloring is to protect themselves. Bears, wolves and other beasts move quietly through forests. They are usually invisible to the eyes of hunters, because they have the color much like the barks of trees.
An even more strange act remains to be noticed. A
A. the change of color in locusts
B. the protective coloration of animals and pests
C. how a certain sea fish protects itself
D. animals or pests can dye themselves different colors

[单项选择]Have you ever stopped to think seriously how many of the things used in your everyday life are made by the hard work of thousands of people
A. 你日常生活中所用的东西有多少是经过了成千上万人的辛勤劳动才做出的，你有没有停止对这个问题的认真思考
B. 你是否曾经停下来严肃地想一想，你在日常生活中所使用的东西有多少是经过成千上万人的辛勤劳动才做出的
C. 你有没有停下来认真地想过，你口常使用的东西有多少是经过了成千上万人的辛勤劳动才做出的
D. 你有没有停下来认真思考，日常用品中有哪些是经过了成千上万人的艰辛劳动才做出的

[单项选择]You should ______ what you have just said. It was very rude.
A. take up
B. take back
C. take for
D. take down

[单项选择]

Passage 5 Have you ever dreamed of traveling in space It was impossible a hundred years ago, nor was it 50 years ago. With the coming of the Space Age, man’ s dream of visiting the moon has come true. The journey to the moon has been the first step towards future explorations in space. The distance between the moon and the Earth is very short indeed when compared with the distances between Earth and the other planets. Mars, the nearest planet to Earth is of miles away ! Traveling to the planets or travels between planets will be man’ s next aim. Such travels will be more difficult than the trip to the moon and certainly more exciting. Recently, two American unmanned spacecraft, Vikings 1 and 2, landed on Mars in an attempt to discover whether that planet had any life on it. So far the presence of life on Mars has neither been proved nor ruled out. Russian space-probes have discovered that the surface of Venus is so hot that it is almost certain that there is no
A. Venus
B. Jupiter
C. Earth
D. Mars