题目内容
We have been good friends ________.
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解析：
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本题考查学生对现在完成时态用法的掌握。从本题的原意分析，现在完成时态不宜与 after many years 和many years ago这两个状语连用，显然它们与题意不符合，首先在排除之列。for与since引导的时间状语都可以与现在完成时态连用，不过since后面接的时间是具体的，也就是说，since后接表示时刻的词或短语；而后面接的时间是延续的，即for后面接的太多是时间段。例如： We have studied English for 3 years and a half. 我们学习英语已有三年半了。 I haven't heard from him since last time. 自从上次以来，我没有接到他的来信。 He has already been in this room for an hour. 他在这房间里早已呆了一个小时了。 China has made great progress since 1982. 自1982年以来，中国取得了很大的进步。 |
期末冲刺100分创新金卷完全试卷系列答案We have always been interested in the moon. 2000 years ago people already knew it moved around the earth and where it would be in the sky at different times of the year. At that time, everything about the moon was learned by watching it carefully in the sky.
When scientists could use telescopes(望远镜) to study the moon more closely, their ideas began to change. They could see the moon was made of rocks. Most scientists thought moon rocks would be different from those on Earth. This was because they believed the moon had once been a planet that had been caught in the earth’s gravity millions of years earlier.
In 1969 moon rocks were finally brought to the earth and studied. Much to their surprise, scientists found that, except for water, the moon and the earth were made of the same things. Once again new ideas were needed for this new information.
After years of study, most scientists now think that the moon was once part of Earth. They believe very early in its history, maybe 4 million years ago, something about the size of Mars hit Earth. This sent billions of rocks into space around our planet. These rocks slowly joined together and after many years became the moon.
In the future, even though our ideas about the moon may change again, we will still be interested in it.
1.From the passage we know the moon was made of_____________.
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A．earth |
B．rocks |
C．water |
D．metal |
2.In the passage the writer wants to tell us ___________________.
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A．why people are interested in the moon |
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B．how ideas about the moon have changed over time |
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C．where the moon came from in the past |
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D．that people have finally learned the truth about the moon. |
3.Before 1969 most scientists thought the moon was ______________.
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A．part of the earth billions of years earlier |
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B．older than the earth |
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C．a planet caught by the earth’s gravity |
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D．made of the same things as the earth |
4.From this passage we can learn that ___________________.
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A．scientists in the past were not clever |
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B．the earth was once part of the moon |
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C．we now know everything about the moon |
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D．new information brings new ideas |