按要求写出相应的单词。 1. tall (反义词) _____ 2. big_爱下问搜题

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问题填空题

按要求写出相应的单词。

1. tall (反义词) _____

2. big (反义词) _____

3. we are (缩略形式) _____

4. are not (缩略形式) _____

5. be (第三人称单数) _____

6. is not (缩略形式) _____

7. too (同音词) _____

8. I (宾格) _____

9. old (反义词) _____

10. them (主格) _____

答案

1. short 2. small 3. we're 4. aren't 5. is

6. isn't 7. two 8. me 9. young 10. they

完形填空

If Mickey Mouse slips (滑倒)on a banana skin on TV, viewers laugh. But for ordinary people, falling is not 36 . For e

xample, if you   37 over a stone or fall off your bike, you have to take days to get well. For   38 people, the result of a fall could be worse.
Scientists at the University of Pittsburgh, USA, wanted to know why some people are   39 likely to fall than others.
The researchers found that   40 means more than planting your feet on the ground and standing tall. Your brain   41 your sense of balance with information from your eyes and inner ears and the   42 from your feet and legs. If something goes wrong with any of these, you’re   43  to fall. People   44 to fall more often as they grow older because their senses are slower.
State of mind is important too. The research shows that when people know they’re walking on a slippery surface, they   45 their pace and walk with flatter feet. As a result, they fall less often.
“We actually   46 people slip and fall,” researcher Mark Redfern said. People of different ages fall on   47 in his lab. Cameras   48 their falls and a computer analyzes the information. Scientists then can   49 people who fall often how to be more watchful.
“If they get   50 to a lifelike but controlled environment, people can   51 learn to handle the   52 thing,” Redfern said.
Falls happen to everyone sometimes.   53 you see someone fall, think about why and offer a helping   54 . This person’s painful experience may   55 you from falling at the same place.

问答题

诊断慢性阻塞性肺疾病(COPD)时，应如何进行临床评估