2019届高三英语一轮复习题组层级快练21Unit1Greatscientists新人教版必修5

题组层级快练21 Unit 1 Great scientists

Ⅰ. 阅读理解

(2017·浙江高三模拟)Everybody sleeps, but what people stay up late to catch—or wake up early in order not to miss—varies by culture. From data collected, it seems the things that cause us to lose the most sleep, on average, are sporting events, time changes, and holidays.

Around the world, people changed sleep patterns thanks to the start or end of daylight savings time. Russians, for example, began to wake up about a half－hour later each day after President Vladimir Putin shifted the country permanently to “winter time” starting on October 36. Russia's other late nights and early mornings generally correspond to public holidays. On New Year's Eve, Russians have the world's latest bedtime, hitting the hay at around 3：30 am.

Russians also get up an hour later on International Women's Day, the day for treating and celebrating female relatives.

Similarly, Americans' late nights, late mornings, and longest sleeps fall on three－day weekends. Canada got the least sleep of the year the night it beat Sweden in the Olympic hockey(冰球) final. The World Cup is also chiefly responsible for sleep deprivation(剥夺). The worst night for sleep in the U．K. was the night of the England－Italy match on June 15. Brits stayed up a half－hour later to watch it, and then they woke up earlier than usual the next morning thanks to summer nights, the phenomenon in which the sun barely sets in northern countries in the summer time. That was nothing, though, compared to Germans, Italians, and the French, who stayed up around an hour and a half later on various days throughout the summer to watch the Cup.

It should be made clear that not everyone has a device to record their sleep patterns, in some of these nations, it's likely that only the richest people do. And people who elect to track their sleep may try to get more sleep than the average person. Even if that's the case, though, the above findings are still striking. If the most health－conscious among us have such deep swings in our shut－eye levels throughout the year, how much sleep are the rest of us losing?

1. What does the author say about people's sleeping habits?

A. They are culture－related.

B. They affect people's health.

C. They change with the seasons.

D. They vary from person to person.

2. What do we learn about the Russians regarding sleep?

A. They don't sleep much on weekends.

B. They get less sleep on public holidays.

C. They don't fall asleep until it is very late.

D. They sleep longer than people elsewhere.

3. What is the most probable reason for some rich people to use a device to record their patterns?

A. They are involved in a sleep research.

B. They have trouble falling asleep.

C. They want to get sufficient sleep.

D. They want to go to bed on regular hours.

4. What does the author imply in the last paragraph?

A. Sleeplessness does harm to people's health.

B. Few people really know the importance of sleep.

C. It is important to study your sleep patterns.

D. Average people probably sleep less than the rich.

答案与解析

【文章大意】本文属于说明文，主要介绍了人们的睡眠习惯是与文化有关的，作者还进行了举例说明。

1. 答案 A

解析细节理解题。根据第一段第一句“Everybody sleeps, but what people stay up late to catch—or wake up early in order not to miss—varies by culture.”可知人们的睡眠习惯是与文化有关的。

2. 答案 B

解析推理判断题。根据第二段第三句“Russia's other late nights and early mornings generally correspond to public holidays.”可知，答案为B项。

3. 答案 C

解析推理判断题。根据最后一段第二句“And people who elect to track their sleep may try to get more sleep than the average person.”可知，答案为C项。

4. 答案 B

解析推理判断题。根据文章最后一句“If the most health－conscious among us have such deep swings in our shut－eye levels through out the year, how much sleep are the rest of us losing? ”可知，选B项。