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I have heard a warning the radio that a storm may be its way.
A.on;on B.over;in C.on;above D.form;on
查看习题详情和答案>>短文改错
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The old woman walked into a shop. |
1．__________ |
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She asked the salesgirl let her have a look at |
2．__________ |
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a new dress, but the girl stood behind the counter took no |
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notice of the request. |
3．__________ |
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The old woman spoke to the girl again, rising |
4．__________ |
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her voice a bit, but received no answer. |
5．__________ |
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She said to herself, “I'm too old not to see well. |
6．__________ |
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I can not even tell a plastic model from a girl. ” |
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Heard this, the girl shouted.“What, |
7．__________ |
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did you call me a plastic model?” |
8．__________ |
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The old woman said, “it can speak? |
9． __________ |
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Then it must be a robot in a new type.” |
10． __________ |
Radioactivity is dangerous. It may cause skin burns, it may destroy good tissues（组织）and it may cause illness that could be passed on to our children and. grand children. In case of exposure（暴露）it may even cause death.
In the early days of radioactivity, scientists did not realize these dangers. Marie and Pierre Curie, after having worked for a while with radioactive materials, noticed that their fingers were reddened and swollen（红肿）and the skin was peeling off. Henry Becquerel carried a small tube with radium in it in his waistcoat pocket, and was surprised to find a bum on his chest. Other early workers also reported bums and harm of different kinds.
The strange fact is that it can harm without causing pain, which is the warning signal we expect from harmfulness. Pain makes us pull back our hands from a fire or a hot object, but a per-son carrying radioactive materials has no way of telling whether he is touching something too“hot” for safety. Besides, the“burns” or other harmfulness that radioactivity produces may not appear for weeks. A person may have been hurt without knowing it for some time.
(1) Which is the topic sentence for this passage?
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A．Radioactivity may ever cause death.
B．Radioactivity does great harm to children.
C．Radioactivity may do harm to people without being known.
D．Radioactivity is dangerous.
(2) A few people were mentioned in the passage. They ________.
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A．were all famous scientists of great achievements
B．died of radioactivity
C．knew little about radioactivity
D．did experiments on themselves to find the danger of radioactivity
(3) According to the point of the passage, pain ________.
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(4) The sentence in the fifth line of the second paragraph“the skin was peeling off”means“________”．
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