Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bicycle and break your arm, it happens very quickly. But computer injuries happen slowly.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect(反射) on the screen. If the windows is in front of you, the sun and the screen will both 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 times, follow 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. If you sit in a 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(前臂), wrists and hands should all be parallel to(与......平衡) the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
1.The underlined word “injure” means “ .”
A. 保护 B. 影响 C. 伤害 D. 帮助
2.Your eyes should .
A. be close to the screen B. be less than 50 centimeters from the screen
C. face the window D. be more than 50 centimeters from the screen
3.To protect your hands and wrists you should .
A. Keep your elbows above the height of the keyboard
B. Keep your wrists hanging without touching anything
C. Keep your elbows below the height of the keyboard
D. Stop playing computer sometimes and exercise
4.Which of the following is true?
A. Sitting wrongly is only bad for your wrists and fingers.
B. Your eyes should be at the same height as the top part of the screen.
C. You should have a rest every two hours.
D. You should sit in front of a screen and play computer for a long time.
5.Which is the best title of this passage?
A. How to Use a computer Safely. B. How to Play Computer Games.
C. How to Protect Your Eyes. D. Computers Are very Harmful.
1.C 2.D 3.D 4.B 5.A 【解析】文章大意：这篇短文主要介绍了电脑伤害不是突然发生的而是慢慢形成的，所以我们要学会安全地使用电脑。文章介绍了电脑对眼睛、手及手腕、背部的伤害以及具体防护办法。 1.细节理解题。根据下文But computer injuries happen slowly.但是电脑的伤害是慢慢发生的，可知这里是说：电脑可以“伤害”你，...
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龙人图书快乐假期暑假作业郑州大学出版社系列答案科目：初中英语 来源：牛津译林版7B英语期中复习专题练习-阅读理解 题型：阅读单选
We each have a memory(记忆力). That’s why we can still remember things after a long time. Some people have very good memories and they can easily learn many things by heart(心), but some people can only remember things when they say or do them again and again. Many of the great men of the world have got surprising memories.
A good memory is a great help in learning a language（语言）. Everybody learns his mother language when he is a small child. He hears the sounds, remembers them and then he learns to speak. Some children are living with their parents in foreign（外国的）countries. They can learn two languages as easily as one because they hear, remember and speak two languages every day. In school it is not so easy to learn a foreign language because the pupils（学生）have so little time for it, and they are busy with other subjects, too.
But your memory will become better and better when you do more and more exercises.
1.Some people can easily learn many things by heart because ____________.
A. they always sleep very well B. they often eat good food
C. they read a lot of books D. they have very good memories
2.Everybody learns his mother language ____________.
A. at the age of six B. when he is a small child
C. after he goes to school D. when he can read and write
3.Before a child can speak, he must ____________.
A. read books B. write words
C. hear and remember the sounds D. think hard
4.In school the pupils can’t learn a foreign language well because ____________.
A. they have no good memories B. they have no recorders(录音机)
C. they have too much time for it D. they are busy with other subjects
1.D 2.B 3.C 4.D 【解析】本文主要介绍了我们每个人都有记忆，这是我们很长时间后仍然记得的原因。一些人的记忆力十分优秀，他们可以很轻松的通过背诵学习很多东西。 1.D 细节理解题。根据Some people have very good memories and they can easily learn many things by heart(心...查看答案和解析>>
科目：初中英语 来源：江苏省无锡市初中部2017届九年级下学期第三次模拟考试英语试卷 题型：材料作文
书面表达
为配合我市文明城市创建工作，我校正在组织开展文明学校创建活动。请你根据下表提示，给学校的英文小报用英语写一篇倡议书，号召大家做一个文明的中学生。
作为一名中学生，我们应该遵规守纪，尽力做一个文明的中学生。 | |
在家里 | 对父母有礼貌，做家务活； |
在学校 | 尊敬老师，与同学友好相处，勤奋学习功课； |
在公共场合 | 说话降低音量，不插队，不乱扔垃圾； |
你的想法 | …… |
要求：1. 词数90左右。开头及结尾已给出，不计入总词数；
2. 所写内容必须包括表格中所有的信息，最后一个要点用2-3句话适当发挥；
3. 不得出现真实的人名、校名、地名等相关信息。
参考词汇：文明的civilized
Dear all,
Our school is organizing activities to win a civilized school title. It is an important part of a civilized city. ______________________________________________________________________________________
Let's work together to be civilized students.
Our school is organizing activities to win a civilized school title. It is an important part of a civilized city. As a middle school student, we should obey social rules and try to be civilized studen...查看答案和解析>>
科目：初中英语 来源：江苏省无锡市初中部2017届九年级下学期第三次模拟考试英语试卷 题型：单选题
It is very ____________ for teenagers to feel lonely and misunderstood since most of us have such feelings.
A. common B. strange C. curious D. energetic
A 【解析】句意：对青少年而言，感到孤独和被误解是很普遍的，因为我们大多数人都有这样的感觉。A. common常见的，普遍的；B. strange奇怪的，陌生的；C. curious好奇的；D. energetic精力充沛的。根据“since most of us have such feelings.”判断，大多数人都有这样的感觉应该属于一种普遍现象，故答案为A。查看答案和解析>>
科目：初中英语 来源：四川省绵阳市安州区2018届九年级下学期二诊英语试卷 题型：语法填空
阅读下面材料，在空白处填入1个恰当的或括号内单词的正确形式，并将答案写在答题卡的相应位置。
People in different countries have different _______ （way） of doing things. Something that is polite in one country may be quite _______ (polite) in another. In Britain, you mustn’t lift your bowl to your mouth when you are _______ (have) some soup. But it’s different in China. And in Japan you even needn’t worry _________ making noises when you have it. It shows that you are enjoying it. But it is regarded as bad manners in Britain. If you are a _______ (visit) in Mongolia, what manners do they expect you to have? They expect you to have a loud“burp”(打嗝)after you finish _______ (eat). Burping shows that you liked the food.
In Britain, you should try not to put your hands on the table when you’re having a meal. In Mexico, however, guests are _________ (expect) to keep their hands on the table during a meal. But in Arab countries you must _________ (be) very careful with the hands. You mustn’t eat with left hand. Arabs consider it very bad manners eating with the left hand. So, what should you do _______ you are on a visit in another country? You can ask the native people to help you or just watch __________ (careful) and follow them.
ways impolite having about visitor eating expected be if carefully 【解析】文章大意：短文主要讲了不同国家之间的餐桌礼仪，同样的行为在不同国家有不同的要求。文章具体介绍了一些国家的餐桌礼仪，如英国，中国，日本，蒙古，墨西哥等国家的餐桌礼仪。 1、句意：不同国家的人有不同的做事方式。way可数名词，“方式、方法”；diff...查看答案和解析>>
科目：初中英语 来源：牛津译林版九年级下册英语 Unit 3 Robots-Reading 练习 题型：单选题
The baby moved ________ the house and knocked things ________ in it.
A. to;off B. out of;over C. in;off D. around;over
D 【解析】句意：那个婴儿在房子周围移动，撞倒了它里面的东西。move to搬到，move out of从……搬出去；move around四处移动；knock off从……上撞下来；knock over撞到；结合句意，婴儿在房子到处移动，因此撞倒了东西。故选D。查看答案和解析>>
科目：初中英语 来源：内蒙古根河市2018年中考模拟试卷 题型：补全短文5选5
In the future, machines will be improved and do more and more work for man. Few people have to work for long hours. 1.. How will he use this leisure in the world of tomorrow?
Certainly he will still need holidays.
In the future, the computer will help people to find the right place. The computer will ask them questions which they will answer by pressing a button. 2., then the computer will tell them where to find the place they want for holiday. 3.. It will also help people to use their leisure time well. There will be more programmes on how to make and how to do things.
In the future, people will certainly have to do less work. 4. This means that the rest of the time will be mostly leisure time.
Some scientists say that man of the future will be able to get enough pleasure and enjoyment on his own without going anywhere. According to other scientists, 5. The cap will make him see, feel and hear all kinds of enjoyable things.
根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使知道文意思通顺，内容完整。并将其标号填写在下面的横线上。
A. Man will have more time for leisure.
B. a man will put on a small cap.
C. It’ll also show them pictures and they will say which ones they like
D. Machines will take more and more work from man.
E. TV will be used more in education.
1.A 2.C 3.E 4.D 5.B 【解析】本文介绍了在未来，机器将被改善，为人类做更多的工作。这样人们做的工作就更少，有更多的休闲时光。人类可以在空闲时间里去度假或者欣赏快乐的事。 1.A 根据Few people have to work for long hours. 和How will he use this leisure in the wo...查看答案和解析>>
科目：初中英语 来源：内蒙古根河市2018年中考模拟试卷 题型：单选题
Amy is _______ unusual girl. She has traveled to 15 countries in _______ world.
A. a; the B. a; \ C. an; the D. an; one
C 【解析】 试题分析：句意：艾米是一个不一般的女孩。她已经去世界上十五个国家旅行过。不定冠词a/an表示某一类人或某事物中的任何一个,经常用在第一次提到某人或某物时,用不定冠词起介绍作用，表示一个。a用于辅音音素前an用于元音因素前。unusual,元音音素开头，in the world,在世界上，固定短语，故选C查看答案和解析>>
科目：初中英语 来源：2018届上海市杨浦区中考英语二模 题型：单选题
2018年上海杨浦二模A right fashionable scarf, necklace, belt etc. can add variety________simple clothes.
A. for B. by C. with D. to
D 【解析】句意：一个合适的时尚围巾，项链，腰带等能为简单的衣服增添多样性。add…to…“给……增添……”，故选D。查看答案和解析>>
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