【題目】Computers can injure you. Most other injuries happen suddenly. For example, if you

___ a bike and break your arms, it happens very ______ . But computer injuries happen slowly. You ______ know how to ride a bike safely. Now learn to use a computer safely.

Your eyes _____ light can injure your eyes, _____ never sit too close to a computer screen. Your eyes should be _______ 50 centimeters ______ the screen.______ remember to look away from it. This gives your eyes a rest. When you use a computer, the window ______ be on your left or your right. If it is behind you, the light will reflect (反射) on the screen. Ifthe window is in front of you, the sun and the screen will_______ shine into your eyes.

Your hands and wrists (手腕)---Hand and wrist injuries can happen because the hands and wrists are moved in the same way _______ times. Ifyou use a keyboard for a long time,_____these three rules: 1) Rest your wrists on something. 2) Keep your elbows () at the same height as the keyboard. 3) Stop sometimes and exercise your hands, wrists and fingers in a different way.

Your back--Some people sit for many hours in front of a computer. Ifyou sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel (平行) to the floor. Ifyou are sitting for a long time, get up ____ 30 minutes and ______ your arms, legs and neck._______ your computer, but use it safely.

1A. fall over B. fall on C. fall off D. fall onto

2A. much quickly B. regularly C. slowly D. quickly

3A. able B. maybe C. probably D. can

4A. Too many B. Too much C. Much too D. Many more

5A. so B. because C. but D. when

6A. at last B. at most C. at least D. less than

7A. to B. from C. on D. away

8A. Sometime B. Some time C. Some times D. Sometimes

9A. can B. may C. might D. should

10A. both B. never C. all D. neither

11A. hundred of B. hundreds C. hundreds of D. two hundreds

12A. follow B. work C. copy D. write

13A. one B. every C. every of D. once

14A. need B. exercise C. control D. shake

15A. Enjoy B. Use C. Protect D. Keep

【答案】

1C

2D

3C

4B

5A

6C

7B

8D

9D

10A

11C

12A

13B

14B

15A

【解析】本篇文章難度適中,主要講述電腦對(duì)我們的傷害以及我們應(yīng)該如何預(yù)防。

1句意“如果你從自行車上摔下來(lái),傷了你的胳膊,這個(gè)發(fā)生得很快”。A.跌倒;B.落到;C.摔下;D.落在……上。根據(jù)句意,故選C。

2句意“如果你從自行車上摔下來(lái),傷了你的胳膊,這個(gè)發(fā)生地很快”。B.有規(guī)律的;C.慢的;D.快的。根據(jù)下文But computer injuries happen slowly可知,表示對(duì)比,故選D。

3句意“你可能知道如何安全地騎自行車”。A.能,常與be able to連用;B.可能,常位于句首;C.可能;D.能。根據(jù)句意,故選C。

4句意“你的眼睛,太多的光會(huì)傷害你的眼睛,所以不要離電腦屏幕太近”。A.too many+可數(shù)名詞復(fù)數(shù);B.too much+不可數(shù)名詞;C.much too+形容詞。根據(jù)句意,light為不可數(shù)名詞,故選B。

5句意“你的眼睛,太多的光會(huì)傷害你的眼睛,所以不要離電腦屏幕太近”。前后為因果關(guān)系,故選A。

6句意“你的眼睛至少離屏幕50厘米”。A.最后;B.至多;C.少于;D.少于。根據(jù)句意,故選C。

7句意“你的眼睛至少離屏幕50厘米”。from從……。根據(jù)句意,故選B。

8句意“有時(shí),記得把目光從電腦屏幕移開(kāi)”。A.sometime指某一個(gè)不明確的時(shí)間,用過(guò)去時(shí)或?qū)?lái)時(shí);B.some time某段時(shí)間;C.幾次;D.有時(shí)。根據(jù)句意,故選D。

9句意“在使用電腦時(shí),窗戶應(yīng)該在你的左邊或右邊”。A.能;B.可能;C.可能;D.應(yīng)該。根據(jù)句意,故選D。

10句意“如果窗戶在你的前面,太陽(yáng)光和屏幕的光都會(huì)反射到你的眼睛里”。A.兩者都;B.從不;C.三者或三者以上都;D.兩者都不。根據(jù)句意,指的是兩者,故選A。

11句意“手和手腕的傷害也可能發(fā)生,因?yàn)槭趾褪滞笠韵嗤姆绞揭苿?dòng)成百上千次”。若hundred前有數(shù)字時(shí),hundred不加s。若hundred前沒(méi)有數(shù)字,但后有of時(shí),hundred后加s。根據(jù)句意,故選C。

12句意“如果你使用鍵盤(pán)很長(zhǎng)時(shí)間,要遵循一下三個(gè)規(guī)則”。A.遵守;B.工作;C.復(fù)制;D.寫(xiě)。根據(jù)句意,故選A。

13句意“如果你坐了很長(zhǎng)時(shí)間,每30分鐘起來(lái)一下,運(yùn)動(dòng)一下你的胳膊、腿和脖子”。A.一個(gè);B.每;D.一次。every 通常不能用于復(fù)數(shù)名詞前,但若復(fù)數(shù)名詞前有基數(shù)詞或few的修飾,則也可用every修飾,表示“每(隔)……”根據(jù)句意,故選B。

14句意“如果你坐了很長(zhǎng)時(shí)間,每30分鐘起來(lái)一下,運(yùn)動(dòng)一下你的胳膊、腿和脖子”。A.需要;B.鍛煉;C.控制;D.搖晃。根據(jù)句意,故選B。

15句意“享受你的電腦,但是要安全的使用他”。A.享受;B.使用;C.保護(hù);D.保持。根據(jù)句意,故選A。

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