In this passage, the writer explains . A. why people faint and how we can help them ——青夏教育精英家教网—

摘要： In this passage, the writer explains . A. why people faint and how we can help them B. when people faint and when we can help them C. why people faint and where we help them D. how people faint and why we help them Z In today’s world, it is easy to cover long distances. Jet planes and trains are safe and fast. But less than 100 years ago, traveling was often dangerous. The railroad was the most widely used means of travel. It was also the most unsafe. Train accidents happened very often before 1900. The tracks were in poor shape. Signal lights often didn’t work. In 1890, accidents on the railroad caused 10,000 deaths and 80,000 serious injuries. Trains were heated by open iron stoves(炉) . When a train had an accident, the stove would overturn and cause a fire. Trains almost never ran on time, if they ran at all. A traveler usually found out that a certain would leave “sometime . In 1888, a rider from Woodstock, Vermont, would need at least two days to get to New York City,325 miles away. The old trains burned wood for fuel. Smoke and cinders blew back from the front of the train. Passengers were covered with soot. Closing the windows didn’t help because the cars were too hot.

网址：http://m.1010jiajiao.com/timu3_id_2911565[举报]

People faint(昏厥) when the normal blood supply to the brain is suddenly cut down. This can happen if they are surprised or shocked(震荡) by sudden news or by something they see suddenly. Some people faint if they see others hurt. Some people faint in crowds. Others faint if they are in a room that is hot and stuffy(闷热的)。

If a person faints while standing, lay him down. If his face is pale, lift his feet .if he is sitting down when he faints, place his head between his knees, loosen any tight clothing that might keep him from breathing easily. If possible, place a wet cloth on his forehead.

1．People may faint if they　　 .

A. see their friends in the street

B. see something unexpected

C. see something splendid

D. see something happy

2．If someone has fainted, we must help him　　 .

A. not to be shocked

B. by moving himself slowly

C. not to be frightened

D. by returning blood to his brain

3．If someone faints, the best way is to　　 .

A. make him sit down

B. make him lie down

C. make him not surprised

D .give him some blood

4．Raise a fainting person’s feet if　　 .

A. he sees others hurt

B. he is in a room that is hot and stuffy

C. his face looks pale

D. he is standing

5．In this passage, the writer explains　　 .

A. why people faint and how we help them

B. when people faint and when we help them

C. why people faint and where we help them

D. how people faint and why we help them

查看习题详情和答案>>