Question

【題目】根據(jù)短文內(nèi)容，用方框中所給詞語的適當(dāng)形式填空，使文章通順、完整。

sleep, who, sit, similar, active, off, raise, how, little, kind

In today’s world, sleep experts often say that for a better night’s rest, Americans should turn 【1】 their smart phones or iPads before sleeping. Such electronic products make the brain more 【2】, and then influence their sleep. But according to a latest survey, more than 90% of Americans regularly use a computer or some other 【3】of electronic products in the hour before bed.

Researchers find that man-made light from some electronic products at night may reduce(減少) the brain chemicals that help 【4】. In the study, the researchers let volunteers read, play games and watch movies on a screen for different time while measuring【5】much light their eyes received. They found that two hours of 【6】before a bright screen at night reduced the sleep chemical levels by about 22%.

Then the researchers studied the college students 【7】 often used computers at night. They got the 【8】 results. And researchers say that may not only cause sleeplessness, but also 【9】 the risk of obesity(肥胖癥), diabetes(糖尿病) and other diseases.

To be on the safe side, the researchers suggest that we should use computers 【10】 than before, or turn down our screens as much as possible before sleeping.

Answer 1

【答案】

【1】off

【2】active

【3】kinds

【4】(to) sleep

【5】how

【6】sitting

【7】who

【8】similar

【9】raise

【10】less

【解析】文章介紹了電子產(chǎn)品的光會影響睡眠。

【1】句意：美國人應(yīng)該在睡覺前關(guān)掉他們的手機(jī)。根據(jù)Such electronic products make the brain more ______2______, and then influence their sleep.電子產(chǎn)品使他們的大腦更興奮，影響他們的睡眠，turn off關(guān)掉和選詞；故填off

【2】句意：電子產(chǎn)品使他們的大腦更興奮，影響他們的睡眠。根據(jù)influence their sleep和選詞；可知是活躍的；故填active

【3】句意：超過90%的美國人在睡覺前使用電腦或其他種類的電子產(chǎn)品。根據(jù)electronic products和選詞；可知是種類，other+名詞復(fù)數(shù)；故填kinds

【4】句意：調(diào)查發(fā)現(xiàn)從電子產(chǎn)品發(fā)出的光，能減少幫助睡眠的大腦的化學(xué)物質(zhì)。根據(jù)上文電子產(chǎn)品影響睡眠，和選詞，可知是睡眠，根據(jù)help (to) do sth幫助做某事；故填(to) sleep

【5】句意：測量他們的眼睛接受到多少光。根據(jù)how much多少，和選詞；故填how

【6】句意：在晚上坐在亮屏幕前兩個小時，減少睡眠化學(xué)物質(zhì)大約22%。根據(jù)before a bright screen at night和選詞，可知是坐，根據(jù)of可知用doing；故填sitting

【7】句意：在晚上經(jīng)常使用電腦的大學(xué)生。這是定語從句的結(jié)構(gòu)，先行詞是college students和選詞，可知引導(dǎo)詞用who；故填who

【8】句意：他們得到相似的結(jié)果。根據(jù)And researchers say that may not only cause sleeplessness,和選詞，可知是相似的結(jié)果，都影響睡眠；故填similar

【9】句意：而且也增加肥胖癥，糖尿病和其他疾病的風(fēng)險。根據(jù)And researchers say that may not only cause sleeplessness, but also和選詞，可知也增加患病風(fēng)險；故填raise

【10】句意：我們應(yīng)該使用電腦比以前更少。根據(jù)or turn down our screens as much as possible before sleeping.和選詞，可知是比以前少，less than少于；故填less