Sleep is crucial for good mental and physical health,yet it's often overlooked in discussions about 1. individuals can do to improve people’s health.

   A latest survey has found that Americans get 2. too little sleep or sleep that is of very poor quality. In fact,within any 24-hour period,a third of Americans report having not received the 3. (recommend) minimum of seven hours of sleep.

   Lack 4. sleep is associated with an increased risk of several diseases,including type 2 diabetes,heart disease and depression. And it also contributes to traffic accidents,5. (industry) accidents and medical errors. That's 6. the

U.S. Centers for Disease Control and Prevention has declared it a public health epidemic(流行病) .

   According to Dr. Michael Howell,7.assistant professor of neurology(神經(jīng)學(xué)) at the University of Minnesota,good sleep habits,like ones for exercise and diet,need 8. (practise) over the long term. Besides the amount of sleep you need,when you get it also 9. (matter) .Eight hours of poorly timed sleep is not 10.(particular) satisfying.

1. what�？疾檫B接詞。設(shè)空處引導(dǎo) 賓語從句且在從句中作do的賓語， 故填what。

2. either。考查連詞。.either... or...意 為“或者……或者……”。

3. recommended。考查過去分詞作定 語的用法。設(shè)空處作定語，且recommend 與 minimum 之間是邏 輯上的動(dòng)賓關(guān)系，故填 recommended 。

4. of�？疾榻樵~。lack of意為“缺少”。

5. industrial�？疾樾稳菰~作定語的用 法。設(shè)空處修飾名詞accidents ,故 填形容詞industrial。

6. why�？疾檫B接詞。設(shè)空處引導(dǎo)表 語從句且設(shè)空處所在句意為“這是 美國疾病控制與預(yù)防豐心把睡眠 不足稱為大眾流行病的原因”，故 填 why。

7. an�？疾椴欢ü谠~。assistant professor為可數(shù)名詞，且在此處表 泛指，故填an。

8. to be practised / practising。考查 謂語動(dòng)詞。

habits與practise之間 是被動(dòng)關(guān)系，need后可用不定式的-ing動(dòng)式或動(dòng)詞-ing形式的主動(dòng)式表 不被動(dòng)意義，故填to be practised / practising。

9. matters�？疾橐话悻F(xiàn)在時(shí)和主謂 一致。設(shè)空處描述的是客觀事實(shí)， 且名詞性從句作主語時(shí)，謂語動(dòng)詞 用單數(shù)，故填matters。

10. particularly^考查副詞。.設(shè)空處修飾satis&ing ,故用副詞。

題目來源：2016年英語周報(bào)高三新課標(biāo) > 第42期 2015-2016高三課標(biāo)

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