most old people die from accidents at home
up to half of home accidents could be prevented
falls at home can be avoided by taking some simple measures
protection of old people should be the first concern for the public
30．in this passage the writer wants to tell usA． how to eat breakfastB． people can-t work without breakfastC． breakfast is importantD． parents may not have breakfast
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29． What's the purpose of the passage?A． To give some advice on how to lose weight．B． To advise people to eat apples every day．C． To tell people how to enjoy a better life．D． To advise people to give up bad habits．
单选题The purpose of this passage is to ______.A frighten people with the rapid melting of the Greenland ice sheetB urge people to take some measures to curb the melting of the Greenland ice sheetC promote people’s environmental protection consciousnessD let people know the time the Greenland ice sheet will take to melt
单选题What is the primary purpose of this passage?A To alert people to the dangers posed by the sun.B To discuss conditions on earth in the far future.C To present a theory about red giant stars.D To describe changes that the sun will go through.
判断题______The purpose of this passage is to explain why it is necessary for us to help others.A 对B 错
单选题The author’s main purpose in writing the last paragraph of the passage was to ______.A explain how cold viruses are transmittedB prove that a poor diet causes coldsC discuss the relationship between income and frequency of coldsD analyze the distribution of income among the people in the study
单选题This passage tries to tell you how to ______.A avoid mistakes about money and friendsB “size up” peopleC avoid mistakes in understanding what people tell youD keep people friendly without trusting them
