题目内容

【题目】按要求改写句子。

1I eat many vegetables for lunch. (同义句)

I ______ _______ ________ vegetables for lunch.

2The runners like eating some healthy food. (提问)

_______ _______ the runners ________?

3Tom has some oranges and eggs for breakfast. (否定句)

Tom ______ _______ _______ oranges _______ eggs for breakfast.

【答案】

1havelots of

2What dolike

3doesn’t have anyor

【解析】

1I eat many vegetables for lunch. (同义句) lots of许多,相当于many/much;have吃;故填have lots of

2The runners like eating some healthy food. (提问)句子就成了特殊疑问句,结构是:疑问词+ 一般疑问句?like是实义动词,变疑问句在主语前加do/does,主语是复数,用do;对eating some healthy food.提问用what;故填What do like

3Tom has some oranges and eggs for breakfast. (否定句) has是实义动词,变否定句在动词前加don’t/doesn’t,主语是单三,用doesn’t,谓语动词还原,some用于肯定句,any用于否定句和疑问句;and用于肯定句,or用于否定句和疑问句;故填doesn’t have . any or

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【题目】In today’s world sleep experts say that for a better night’s rest Americans should turn off their smartphones or iPad before sleeping. Such electronic products make the brain more active and then influence their sleep. But according to a latest survey more than 90% of Americans regularly use a computer or some other kinds of electronic products in the hour before bed.

Researchers are finding that man-made light from some electronic products at night may reduce the brain chemicals(化学物质) that help sleep. The researchers showed that sitting in the light from computer tablets clearly lowered levels of the chemical which manages our body clocks and plays a role in the sleep cycle.

In the study the researchers let volunteers read play games and watch movies on a tablet for different time while measuring(测量) how much light their eyes received. They found that two hours of sitting before a bright tablet screen at night reduced the sleep chemical levels by about 22%.

Studies of students using computers at night have got the similar results. And researchers say that may not only cause sleeplessness but also raise the risk of obesity(肥胖症) diabetes(糖尿病) and other diseases.

To be on the safe side the researchers advise us to use computers less before bed or at the very least turning down your screen as much as possible.

根据材料内容选择最佳答案。

【1】What can we learn from the first paragraph?

A. Americans don’t get enough sleep.

B. Electronic products are very popular.

C. The brain becomes more active at night.

D. Sleep experts never use smartphones.

【2】The volunteers in the study did the following things EXCEPT ___________.

A. listening to music

B. playing computer games

C. watching movies

D. reading electronic books

【3】How may electronic products influence people’s sleep?

A. Make our brains more active.

B. Make our body weak.

C. Lower our brains’ chemicals that help sleep.

D. Change our body clocks.

【4】The underlined word "that" probably means ___________ in the passage.

A. making a survey about sleep

B. using smartphones in the daytime

C. sitting in a bright room

D. surfing the Internet at night

【5】What does the passage tell us to do to have a good sleep?

A. Learn to use smartphones or iPad.

B. Watch some relaxing TV programs.

C. Turn down the screen to the lowest.

D. Try to sleep earlier than before.

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