日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

Computers can injure (傷害) you. Most other injuries happen suddenly. For example, if you fall over a bike and break your arms, it happens very     . But computer injuries happen slowly. You probably 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       50centimeters(厘米)on 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 on(反射)the screen. If the 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. Hundreds of times. If you use a keyboard for a long time,         these three rules: 1)Rest your wrists on some­thing. 2)Keep your elbows(肘)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. If you 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. If you are sitting for a long time, get up every 30 minutes and        your arms, legs and neck.      your computer, but use it safely.

1.A. much quickly      B. faster                 C. slowly              D. quickly

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

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

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

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

6.A. can            B. may                       C. must           D. should

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

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

9.A. need               B. exercise              C. walk           D. shake

10.A. Enjoy      B. Watch                C. Protect             D. Keep

 

【答案】

 

1.D

2.B

3.A

4.C

5.D

6.D

7.A

8.A

9.B

10.A

【解析】

試題分析:短文大意:本文指出電腦可以傷害你。大多數(shù)其他的傷病是突然發(fā)生的,但是電腦傷害的發(fā)生是緩慢的。并且告訴人們使用電腦時如何保護自己的一些方法。

1.考查副詞及語境理解。句意:它很快就會發(fā)生。 faster更快; slowly    慢慢地;quickly迅速地。much 不可以修飾副詞原級quickly。 結合下句But computer injuries happen slowly 可推知此句是說它很快就會發(fā)生。所以選D。

2.考查短語及語境理解。句意:太多的光可以傷害你的眼睛。Too many太多;Too much太多; Much too太;Many more更多的。根據(jù)light不可數(shù)即可知道選B。

3.考查連詞及語境理解。句意:所以不要坐得太靠近電腦屏幕。so所以;because因為;but    但是;when當…的時候。根據(jù)上句light can injure your eyes可知此處該用連詞so。故選 A。

4.考查短語及語境理解。句意:你的眼睛應該至少離屏幕50厘米。at last最后; at most adv.至多, 最多,充其量; at least至少; less than 不到。根據(jù)上句never sit too close to a computer screen 可推知此處選C。

5.考查副詞及語境理解。句意:記得有時要遠看。Sometime         在某個時候;Some time一些時間;Some times 幾次; Sometimes有時。故選 D。

6.考查情態(tài)動詞及語境理解。句意:當你使用電腦,窗口應該在你的左邊或右邊。can能,會; may可以;must 必須;should應該。根據(jù)后兩句If it is behind you, the light will reflect on(反射)the screen. If the window is in front of you, the sun and the screen will   shine into your eyes. 可推知窗口應該在你的左邊或右邊,所以選 D。

7.考查形容詞及語境理解。句意:如果窗口是在你的面前,太陽和屏幕都將照耀到你的眼睛。both兩者都; never從不; all都,全部; neither一個也不。 根據(jù)主句主語the sun and the screen 可知選A。

8.考查動詞及語境理解。句意:如果你使用一個鍵盤很長一段時間,要遵循以下三個規(guī)則。follow跟隨,遵循 work 工作;copy 抄寫;write寫。故選A。

9.考查動詞及語境理解。句意:每30分鐘應站起來且活動你的手臂、腿和脖子。Need需要;exercise鍛煉,運動;walk步行;shake搖動。根據(jù)句意結合語境可知選B。

10.考查動詞及語境理解。句意:享受你的電腦,。Enjoy欣賞,享受; Watch      觀看;Protect保護;Keep保持。根據(jù)后文but use it safely可推知此句是說享受你的電腦,所以選A。

考點:健康保健類短文。

 

練習冊系列答案
相關習題

科目:初中英語 來源:2012-2013學年漣水縣唐集中學八年級下學期期末考試英語卷(帶解析) 題型:閱讀理解


Shop F.Y. – Elisabeth Online Shopping!
Do you want to buy some good things? Do you want to buy them at low prices? Do you want to buy them at home? Do you want to buy them right now?
F. Y. can help you!
There are hundreds of good things for you to choose. Just do it! The thing you need is a computer. Here is the way to buy things online.
Choose a kind of thing you want to buy and click on the describing words. For example, if you want to buy a sweater, you can click on the word – clothes.
Choose the color and size. If you want a small black sweater, you can click on the words- small and black.
You can see a list of small black sweaters with the price. You just click on the sweater you like.
Enter your name, address, telephone number and ID card number.
OK! The shop assistant will send your sweater in one day. Isn’t it easy? Enjoy your shopping here!
 
【小題1】This ad is for_____________.
A.a(chǎn) jobB.a(chǎn) shopC.sweatersD.computers
【小題2】If you buy something ________, the first thing you need is a computer.
A.onlineB.a(chǎn)t schoolC.on TVD.in a shop
【小題3】After you find sweaters online, you want a small black one and you can click on “__________”.
A.clothesB.smallC.blackD.small and black
【小題4】What don’t you need to enter into the computer?
A.Your name.B.Your address.
C.Your ID card number.D.Your age.
【小題5】What does the underlined word “click” mean?
A.查找B.點擊C.選擇  D.勾出

查看答案和解析>>

科目:初中英語 來源:2012屆浙江省紹興市樹人中學初三3月階段測試英語試卷(帶解析) 題型:閱讀理解


These days, cars are designed using computers. Let’s look at how a new car is created.
First, several designers talk about the new car and any good ideas that they have. Then they sit down at their computers and draw many sketches. The best two or three drawings are chosen and then more detailed(細節(jié)的,詳情的) drawings of cars are developed on the computer. You can change the size, shape or color of any part on the computer to see how the car would look and then (73 ) you can choose the best design.
Both the inside and the (71) ________of the car have to be designed. Part of the inside of the car is built so that the designers can sit in it. They can feel if there is enough room inside and if they can reach everything. Then some cars are built—there are more than 15 000 parts of a car to test.
(74) When everything is safe, the cars are made in the factory. Again, computers are used to make sure that all the parts are ready as they are needed. (72)The factory usually stays open all through the night so that the car production never stops.
【小題1】Fill in the missing word:
“Both the inside and the _____________of the car have to be designed.”
【小題2】The underlined phrase “stays open” means______________________. (Only in English)
【小題3】“You can choose the best design.” means:
The best design can __________  __________.
【小題4】Please translate the following sentence into Chinese:
“When everything is safe, the cars are made in the factory.”
__________________________________________________________________________
【小題5】The main idea of the passage is
____________________________________________________________________.

查看答案和解析>>

科目:初中英語 來源:2013-2014學年浙江省樂清市育英寄宿學校九年級上學期期中考試英語試卷(解析版) 題型:閱讀理解

The human brain weighs about 1.4 kilograms, but it can hold much more information than most computers. However, there is another difference between humans and computers. Computers don't forget information they are given, but humans often do. No one remembers everything, and luckily we don't usually have to. But everyone can improve their memory if they want to. Here are some suggestions.

◆Try to use new informati6n immediately. For example, if you meet someone who says "Hi! I'm Carlos," don't just say "Hello." Repeat the person's name. Say"___________"

◆Break a big number into smaller parts. For example, it's hard to memorize (記憶) 109244153. But if you break it into three parts--109/244/153—it becomes easier.

◆Write out what you need to remember ever and over again. This will help you keep it in mind longer, especially for memorizing formulas (公式) or facts.

◆Always review information. If you bring what you've learned back to your mind, they become easier to remember. For example, before you go to sleep, it’s a good idea to review the new things you learned that clay.

◆Discuss with a friend. It is always easier to remember things through discussions. You can have a discussion about what's right and what's wrong, and it will lead to the right answer.

◆Never tell yourself that you have a bad memory. You can always do something to help improve your memory. And everyone's memory gets better if they use it often enough.

All of the suggestions are helpful. If you follow them, you are certain to improve your memory.

1.Which should be put in the blank (空格) in Paragraph 2?

A. Hello, Carlos. B. How do you do?

C. Hello, I am Sophia.  D. Glad to meet you!

2.What can help memorize a big number more easily according to the passage?

A. To store it in a computer.

B. To break it into smaller parts.

C. To discuss it with a friend.

D. To review it before you sleep.

3.Which of the following is true according to the passage?

A. Discussing with friends can help you remember things.

B. Always reviewing information can help you fall asleep.

C. Formulas and facts can help you learn about your brain.

D. Human beings can improve their memory by computer.

4.What does the sentence "Never tell yourself that you have a bad memory” mean?

A. You should tell others about your bad memory.

B. You should believe in other people all the time.

C. You should ask others to improve their memory.

D. You should have confidence in your memory ability.

 

查看答案和解析>>

科目:初中英語 來源:2013-2014學年江蘇省泰州市九年級12月學業(yè)水平測試英語試卷(解析版) 題型:單項填空

The teacher asked the students _________________.

A. if they are interested in dinosaurs           

B. when was Audery Heben born

C. What they will do with the computers        

D. how many trees they had planted

 

查看答案和解析>>

科目:初中英語 來源:2012-2013學年江蘇省南京市聯(lián)合體九年級中考一模英語試卷(解析版) 題型:其他題

根據(jù)短文內(nèi)容及首字母提示,填寫所缺單詞。

When every Apple Fan was waiting for the next surprise, Steve Jobs, the founder and former CEO of Apple, p1.  away on October 5th, 2011, at the a 2.  of fifty-six after a seven-year-long battle with cancer.

What is Jobs best remembered for? Many of u 3.  would name some great products:the iPod, iTouch, the iPhone and the iPad. They have changed the way we e 4.  music, television, and even books.

But Jobs brought much more to the world t 5.  these popular products. As a successful businessman, Jobs’ passion (激情) and energy e 6.  the world. He told us “do what you love”. He said, “the only thing that k 7.  me doing is that I love what to do.” He believed that “People with passion can change the world for the better”. Jobs made computers i 8.  and easy to use. His iPhone, iPad and iTouch are popular around the world. People say Jobs sold d 9. , not products. As the US President Barack Obama said, Jobs was “brave enough to think d 10. , bold (大膽的) enough to believe he could change the world, and talented enough to do it”.

 

查看答案和解析>>

同步練習冊答案
久久久久久久黄色片| 蜜臀av亚洲一区中文字幕| 精品国产一区二区三区性色av | 欧亚精品一区| 欧美激情喷水| 国产在线资源| bdsm精品捆绑chinese| 五月婷婷激情五月| 青青草原免费观看| 老鸭窝一区二区| av在线免费看片| 欧美 日韩 国产 高清| 亚洲国产精品视频一区| 国产麻豆一区二区三区在线观看| 日本成人精品在线| 免费av在线一区| 日韩欧美一区二区免费| 一本色道久久综合狠狠躁的推荐 | 污污的网站在线观看| 午夜精品在线播放| 亚洲一级特黄毛片| 国产又爽又黄的视频| 日本中文在线视频| 日本理论中文字幕| 成年人网站免费在线观看| 成年人性生活视频| 极品美女扒开粉嫩小泬| 超碰人人爱人人| 最新不卡av| 亚洲一区二区三区午夜| 色爱区成人综合网| 噜噜噜噜噜久久久久久91| 成人3d动漫一区二区三区91| 成人网在线观看| 91久久精品国产| 国产欧美婷婷中文| 91国语精品自产拍在线观看性色 | 北岛玲一区二区| jjzz黄色片| 美女伦理水蜜桃4| 中文字幕18页| 香蕉视频黄色在线观看| free性中国hd国语露脸| 菠萝菠萝蜜网站| asian性开放少妇pics| 精品少妇一区二区三区免费观| 菠萝菠萝蜜网站| 捆绑凌虐一区二区三区| jlzzjizz在线播放观看| 波多野结衣a v在线| 亚洲精品视频网址| 国产极品美女在线| 精品少妇久久久久久888优播| 国产精品99精品| 在线观看免费av片| 国产午夜小视频| 无码人妻丰满熟妇奶水区码| 小泽玛利亚一区二区三区视频| 中文字幕日日夜夜| 亚洲av无码国产精品永久一区| 亚洲av无码国产精品久久不卡| 无码国产精品一区二区色情男同| 二区三区在线视频| 免费看成年人视频在线观看| 青青草免费观看免费视频在线| 欧美性天天影视| 欧美黄色激情| 卡通欧美亚洲| 日韩欧美一级| 啪啪亚洲精品| 欧美激情四色| 日韩高清不卡一区| www.66久久| 亚洲日穴在线视频| 欧美日本一道本| www.欧美免费| 成人免费网视频| 亚洲午夜精品一区二区| 亚洲 欧美 日韩系列| 人妻体内射精一区二区| 日本中文字幕第一页| 91网页在线看| ****av在线网毛片| 性欧美lx╳lx╳| 久久福利影视| 国产精品―色哟哟| 欧美妇女性影城| 欧美精品激情blacked18| 国产精品jizz视频| 日本免费不卡一区二区| 乐播av一区二区三区| 中文字幕欧美人妻精品| 1024国产在线| 国产午夜久久av| 亚洲黄色天堂| 国产日韩欧美一区二区三区综合| 欧美日韩大陆在线| 九九热精品视频在线播放| 国产伦精品一区二区三区四区视频 | 男女一区二区三区| 日本久久综合网| 成人欧美亚洲| 99久久香蕉| 久热精品在线| 一区二区三区在线观看国产 | 九九热这里只有精品免费看| 久久久久久久免费| 一区二区在线免费看| 欧美片一区二区| 在线观看av片| 免费观看亚洲视频大全| 久色成人在线| 天天射综合影视| 久久精品中文字幕一区| 免费日韩av电影| 欧美xxxx黑人| 国产精品羞羞答答在线| а√在线中文在线新版| 希岛爱理av一区二区三区| 久久综合久久久久88| 欧美狂野另类xxxxoooo| 国产不卡av在线| 婷婷五月综合缴情在线视频| 四虎影院中文字幕| 在线激情av| 日韩中文字幕无砖| 加勒比av一区二区| 欧美视频中文在线看| 久久久久久久久久久成人| 伊人精品久久久久7777| 国产在线综合视频| 屁屁影院在线观看| 亚洲精品一二三**| 国产91精品欧美| 日韩午夜三级在线| 91日本视频在线| 91丝袜超薄交口足| 国产人妖在线播放| 国产一区二区精品调教| 久久字幕精品一区| 欧美日韩在线视频首页| 777精品视频| 国产精品沙发午睡系列| 日韩精品在线免费视频| 啦啦啦中文在线观看日本| 欧美日韩一卡| 亚洲国产日韩a在线播放性色| 欧美激情第1页| 国产91porn| 久久免费视频99| 青草在线视频| 亚洲欧美视频| 欧美日韩亚洲综合一区| 国产精品专区h在线观看| 激情视频免费网站| 成人h动漫精品一区二区无码 | 欧美一区二区三区电影| 97超碰在线播放| xxxxxx黄色| 一级片在线视频| 国产91精品对白在线播放| 日本一区二区在线不卡| 日韩最新av在线| 国产精品久久久久9999爆乳| 久久久久久久久97| 好看的中文字幕在线播放| 激情自拍一区| 欧美三级乱人伦电影| 51国产成人精品午夜福中文下载 | 老牛精品亚洲成av人片| 国产无人区一区二区三区| 日韩午夜在线视频| 亚洲中文字幕无码av永久| 欧美超碰在线观看| 亚洲综合视频| 91视频免费观看| 久久久极品av| 日韩av在线综合| www香蕉视频| 特黄特色欧美大片| 一区二区三区中文在线观看| 国产99久久精品一区二区 夜夜躁日日躁 | 欧洲亚洲精品视频| 欧美~级网站不卡| 在线观看国产精品网站| 久久99精品久久久久子伦| 成人无码精品1区2区3区免费看| 免费在线看黄色| 久久精品三级| 亚洲护士老师的毛茸茸最新章节| 在线亚洲美日韩| 日批视频免费在线观看| 香港久久久电影| 一区二区中文字幕在线| 国产成人精品一区二区| 日本japanese极品少妇| 色老头视频在线观看| 欧美一级视频| 日韩精品视频在线观看网址| 日本老太婆做爰视频| 亚洲一卡二卡在线观看| 国产va免费精品观看精品视频 | 欧美中文在线字幕| 人妻 日韩 欧美 综合 制服| 色多多视频在线观看| 日本aⅴ免费视频一区二区三区| 国产视频精品自拍| 国产毛片视频网站| 亚洲 国产 欧美 日韩| 欧美三级黄美女| 欧美成人精品高清在线播放| 久久手机在线视频| 超碰在线观看99| 亚洲欧美综合久久久| 69久久99精品久久久久婷婷 | 欧美网站免费观看| 亚洲aⅴ在线观看| 在线视频观看日韩| 亚洲精品在线视频| 免费一级特黄录像| 999国产在线视频| 国产尤物一区二区| 久久久久亚洲精品成人网小说| 成人区人妻精品一区二| 天堂av资源在线观看| 白白色 亚洲乱淫| 清纯唯美亚洲综合| 成年人网站在线观看视频| 99riav视频一区二区| 亚洲精品乱码久久久久久久久 | 欧美13~18sex性hd| 蘑菇福利视频一区播放| 中文字幕日韩在线播放| 中文字幕亚洲日本| 久久大胆人体| 中文字幕免费不卡| 成人av片网址| 国产乱码在线观看| 希岛爱理一区二区三区| 亚洲精品98久久久久久中文字幕| 男女午夜激情视频| 国产天堂在线| 成人av动漫在线| 国产美女精品视频| 在线观看亚洲欧美| 成人直播大秀| 国产视频精品va久久久久久| 亚洲色图欧美自拍| 久草在线资源福利站| 中文字幕一区免费在线观看| 国产精品一 二 三| 亚洲性在线观看| 亚洲国内自拍| 色综合久久中文字幕综合网小说| 91中文字幕永久在线| 亚洲成人a级片| 91黄色免费观看| 男人用嘴添女人下身免费视频| 黄色免费在线播放| 99在线精品一区二区三区| 亚洲综合视频1区| 亚洲中文一区二区三区| 在线欧美三区| 久精品免费视频| 男女性高潮免费网站| 日韩伦理一区二区三区| 亚洲国产精品yw在线观看| 做a视频在线观看| 欧美成a人片在线观看久| 婷婷丁香激情综合| 国产玉足脚交久久欧美| 日本亚洲精品| 国产精品久久久久一区| 亚洲国产精品久久久久婷婷老年 | 91深夜福利视频| 中文字幕在线观看欧美| 久久精品麻豆| 国产精品国产亚洲伊人久久| 懂色av蜜臀av粉嫩av分享吧最新章节| 欧美日韩国产成人精品| 欧美黑人狂野猛交老妇| 精品小视频在线观看| 午夜久久一区| 97国产一区二区精品久久呦| 日产精品久久久| 国产精品普通话对白| 国产精品6699| 一级黄色大片网站| 日本亚洲最大的色成网站www| 国产精品视频xxx| 国产精品人人爽| 精品一区二区免费在线观看| 91超碰在线电影| 天堂网在线播放| 久久先锋影音av| 中文字幕一区二区中文字幕 | 亚洲综合视频在线| 自拍日韩亚洲一区在线| 678在线观看视频| 欧美性猛交xxxx乱大交3| 黑人粗进入欧美aaaaa| 成人在线爆射| 欧美成人三级电影在线| 中文字幕av网址| 欧美中文字幕一区二区| 九九热精品在线| 亚洲成人av网址| 国产一区二区不卡老阿姨| 国外成人在线视频网站| 你懂的在线观看| 亚洲综合久久久| 欧美婷婷精品激情| www一区二区三区| 亚洲欧美日韩中文在线制服| 国产一二三区精品| 亚洲国产免费看| 91系列在线观看| 玖草视频在线| 国产精品福利一区| 国产精品99久久免费黑人人妻| 国产91精品在线| 亚洲欧洲在线播放| 中文字幕日韩一级| 日产国产高清一区二区三区 | 深夜福利在线视频| 樱花影视一区二区| 日本中文字幕观看| 噜噜噜天天躁狠狠躁夜夜精品 | 欧美日韩国产一区二区三区地区| 永久免费未满蜜桃| 黑人操亚洲人| 日本免费在线精品| 天天色综合av| 夜夜爽夜夜爽精品视频| 免费成年人高清视频| 蜜乳av综合| 91精品成人久久| 天天操天天干天天插| 国产精品久久久久久久第一福利 | 日韩美女视频19| jizz18女人| 精品不卡一区| 国产精品爱久久久久久久| 久草在线新资源| 午夜国产精品一区| 日本精品一二三| 一区二区三区在线观看免费| 91久久精品美女| 欧美三级黄网| 日韩一区二区在线观看| 国产一二三四区| 蜜臀精品一区二区三区在线观看 | 午夜写真片福利电影网| 青青草国产精品亚洲专区无| 日韩中文字幕一区| 怡红院成人在线| 日韩中文字幕在线观看| 97在线视频人妻无码| 国产精品你懂的| 99热这里只有精品2| 亚洲国产一区二区三区在线播放| 亚洲综合中文字幕在线观看| 超碰在线最新| 亚洲精品91美女久久久久久久| 久久精品无码av| 国产拍揄自揄精品视频麻豆| 欧美视频国产视频| 欧美在线91| 美日韩免费视频| 精品视频一区二区三区四区五区| 久久精品国产精品亚洲| 六月丁香综合网| 天天射综合影视| 欧美激情精品久久久久久免费| 国产自产视频一区二区三区| 欧美老熟妇喷水| 日本女优一区| 国产日韩欧美精品| 欧美日韩电影免费看| 欧美成人精品在线观看| 福利资源在线久| 欧美日本精品一区二区三区| 日韩精品视频免费看| 久久在线免费观看| 一级网站在线观看| 亚洲国产专区校园欧美| 一区二区三区四区欧美日韩| 亚洲亚洲一区二区三区| 国产精品自拍视频| 色yeye免费人成网站在线观看| 亚洲午夜女主播在线直播| 丰满人妻av一区二区三区| 懂色av中文一区二区三区天美 | 欧美性受xxx黑人xyx性爽| 亚洲精选在线视频| 国精产品一区一区| av高清久久久| 午夜免费福利网站| 日本视频中文字幕一区二区三区| 可以看毛片的网址|