【新课标】Unit 3 Computers 第1课时 Reading I 分层作业(含答案)
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中小学教育资源及组卷应用平台
Unit 3 Computers
Period 1 Reading I
分层作业
A层作业以夯实基础
根据中文提示填空
1．It’s said that the first t________ of clothes were made of animal skins.（根据首字母填空）
2．As we know, good results d________ on hard work.（根据首字母填空）
3．We plan to buy a better TV with a bigger s____.（根据首字母填空）
4．Mary was badly ill. The doctor said that he had to o________ on her at once.（根据首字母填空）
5．So far, China is the first country in the world to ________（限制；管理）the spreading(传播) of COVID-19 successfully.（根据汉语提示填空）
6．Mary was the ________ (极小的) baby born in 2003, but now she is pretty tall.（根据汉语提示填空）
7．Teenagers should know that staring at a ________（屏幕）for a long time is bad for eyes.（根据汉语提示填空）
8．________（控制）the spread of the disease depends on everyone’s action.（根据汉语提示填空）
9．More and more people have been ________ (意识) of the great harm of smoking.（根据汉语提示填空）
10．You can o________ (订购) some food on the Internet.（根据汉语及首字母填空）
二、多句选词填空
从下面方框中选择适当的单词或短语填空，使内容完整正确。
afford to, depend on, from time to time, give a chance to, make a difference to
1. The Special Olympic Games_______the children and adults with intellectual disabilities.
2. The old man feels lonely_______because it's difficult to see his good friends.
3. We human beings_______the rich resources of nature to live and work.
4. Many of the families in developing countries can't________go to hospital.
5. We all know that if we try to do something. everyone can_________our city
B层作业：能力提升
三、完形填空
We can use robots in many different places now, but robots don't have a 1 history. We usually see robots in the films.The robots in these 2 are stronger, faster and clever than people. In real life, people 3 robots in factories most of time Robots can do many dangerous, difficult or boring jobs for 4 .Some people can't look after themselves but robots can help them in everyday 5 .For example, some blind people use dogs to help themselves 6 around.These dogs are guide dogs. And now scientists are making a robot to 7 these people. In the future, robot dogs may take the place of these 8 . And these robot dogs can help blind people to do many other useful things.
People also use robots in some American 9 .At one hospital, a robot takes meals from the kitchen to sick people's rooms. It never 10 its way because it has a map of the hospital in its computer system (系统).
In the future, robots will work in many different ways. But robots will never take the place of human.
1. A. short B. old C. young D. long
2. A. films B. books C. stories D. jobs
3. A. make B. take C. use D. do
4. A. animals B. people C. machines D. teachers
5. A. work B. study C. life D. way
6. A. walk B. stand C. sit D. stop
7. A. show B. tell C. see D. help
8. A. people B. guide dogs C. machines D. children
9. A. schools B. factories C. hospitals D.companies
10. A. finds B. loses C. comes D. goes
四、阅读单选
How much time do you spend 1ooking at your smartphone or computer every day These electronic devices (电子设备) help us in many ways, but they may also cause health problems.
Too much screen time can cause your eyes to feel dry and sore and is not good for your eyesight. To help your eyes stay healthy follow the“20-20 20" rule: After 20 minutes' use of eyes, look at something 20 feet away for 20 seconds.
Your eyes aren't the only pats of your body that could become worse from using electronic devices. People who write a lot of text messages can develop“texting thumb". which will 1ead to the 1oss of grip strength (抓力).
Scientific research shows that smartphones can also hurt your mind. One of the biggest problems is that using smartphones can affect (影响) your sleep patterns. Doctors say the screen light stops you from feeling sleepy. So they advise people not to use smartphones for at least one hour before trying to sleep.
Another serious danger is Internet addiction (沉迷). Many people turn to the Internet to make light of feelings of stress, sadness,and loneliness. Over time, they might start to depend on the Internet and feel worried if they 're not online. To stop yourself from falling into this kind of trouble, control the time you spend on electronic devices.
To use your smartphone or computer safely. just make sure you follow the advice. Also, remember that there is more to life than looking at an electronic screen.
1. The first“20”of the“20-20-20" rule in the passage means__________.
A. how 1ong you use your eyes
B. how often you take a break
C. how far you look at things from you
D. how many things you need to do at the break
2. According to the passage, we can know that_______.
A. too much screen time won't cause eye problems
B.“texting thumbs”will make your eyes dry and sore
C. it's hard for people to sleep because of the screen light
D. people will feel sad when they are connected to Internet
3. The underlined word“they" in Paragraph 5 refers to (指代)_________.
A. computer games or Internet
B. several serious mind problems
C. people who have Internet addiction
D. feelings of stress, sadness and loneliness
4. What's the best title for the passage
A. The electronic devices
B. The more important things in life
C. The health problems
D. The advice about using the electronic devices
C层作业:拓展延伸
制作一张手抄报，以“计算机对我的生活有用”为主题。
要求：
至少160字。
列出至少三个事实来证明这一点。
可以文字结合图片加以说明，语句通畅，内容丰富。
参考答案：
一、根据中文提示填空
1．(t)ype
【详解】句意：据说第一种衣服是用动物皮做的。根据句意和首字母提示可知，type意为“种类、类型”；由the first可知，这里用单数名词。故填(t)ype。
2．(d)epend
【详解】句意：众所周知，好的结果取决于努力工作。根据“good results...on hard work”以及首字母并结合常识可知，好的结果取决于是否努力工作，depend on“取决于”，句子描述一般情况，用一般现在时，主语是“good results”，谓语用原形。故填(d)epend。
3．(s)creen
【详解】句意：我们计划买一台屏幕更大的更好的电视机。根据空前“a better TV”和首字母提示可知，空处应是screen，屏幕，可数名词，因之前有不定冠词a修饰，故名词应用单数形式。故填(s)creen。
4．(o)perate
【详解】句意：玛丽病得很重。医生说他必须马上给她做手术。have to do sth.不得不/必须做某事；根据题干“Mary was badly ill. The doctor said that he had to…on her at once”和首字母提示，可知必须马上给她做手术；operate on给……做手术，故填(o)perate。
5．control
【详解】句意：迄今为止，中国是世界上第一个成功控制新冠病毒传播的国家。“限制；管理”control，动词；to后跟动词原形构成动词不定式结构。故填control。
6．tiny
【详解】句意：玛丽是2003年出生的那个小婴儿，但现在她长得相当高了。tiny“极小的”，作定语修饰baby，故填tiny。
7．screen
【详解】句意：青少年应该知道长时间盯着屏幕对眼睛不好。screen“屏幕”，根据空前的“a”可知，要用名词单数。故填screen。
8．Controlling
【详解】句意：控制这种疾病的传播取决于每个人的行动。控制：control；根据句意可知，此处“控制传播”是动宾结构，所以此处control应取动词的含义；再结合成分分析可知，挖空处到“disease”在句中作主语且该主语强调的是“控制疾病传播”这个事情的本身，所以此空应用动词control对应的动名词形式controlling作主语，句首首字母c应大写。故填Controlling。
9．aware
【详解】句意：越来越多的人已经意识到抽烟的巨大害处。be aware of表示“意识到”，固定搭配。故填aware。
10．(o)rder
【详解】句意：你可以从网上订一些食物。根据汉语提示以及首字母提示可知，订购order。再根据空前的“can”可知，情态动词后加动词原形，所以此处用order。故填(o)rder。
二、多句选词填空
从下面方框中选择适当的单词或短语填空，使内容完整正确。
[答案] [小题1] give a chance to
[小题2] from time to time
[小题3] depend on
[小题4] afford to
[小题5] make a difference to
[解析] [小题1] 句意:特奥会给了有智力障碍的儿童和成人一个机会。根据"the children and adults with intellectual disabilities"可知，此处表达给了这些人机会，give a chance to sb“给某人一次机会” ，说明一般情况，句子用一般现在时，主语是复数形式，所以动词用原形。故填give a chance to。
[小题2]句意:这位老人有时感到孤独，因为很难见到他的好朋友。根据“The old man feels lonely”可知空处作句子的状语，结合所给词汇可知，此处是表达“有时感到孤独”, from time to time“有时”。故填from time to time。
[小题3]句意:我们人类依靠丰富的自然资源生活和工作。根据the rich resources of “nature”可知，此处是表达“依靠丰富的自然资源”，depend on“依靠”，句子是一般现在时， 主语是复数，所以动词用原形。故填depend on。
[小题4]句意:许多发展中国家的家庭无法负担去医院的费用。根据“go to hospital”可知,此处是表达无法负担
去医院的费用”，afford to do sth“担负得起做某事”，情态动词后用动词原形。故填afford to。
[小题5]句意:我们都知道，如果我们努力做些什么，每个人都可以对我们的城市产生影响。根据“if we try to do something,” 可知，此处是表达“对我们的城市产生影响”，make a difference to“对.....产生影响”，情态动词后用动词 原形。故填make a difference to。
三、完形填空
[答案]
[小题1] D
[小题2] A
[小题3] C
[小题4] B
[小题5] C
[小题6] A
[小题7] D
[小题8] B
[小题9] C
[小题10] B
[分析]文章讲述了机器人的事情。
[小题1]句意:但是机器人的历史并不长。A. short短的; B. old老的; C. young年轻的; D. long长的;根据句意故选D。
[小题2]句意:这些电影当中的机器人比人又壮又快又聪明。根据We usually see robots in the films故选A。
[小题3]句意:在真实生活当中人们在工厂大部分时间使用机器人。A. make制造; B. take带走; C. use使用; D.do做;根据Robots can do many dangerous, difficult or boring jobs可知是使用;故选C。
[小题4]句意:机器人能为人们做许多危险的、无聊的或者困难的工作。A. animals动物; B. people问; C.
machines机器; D. teachers老师;根据句意故选B。
[小题5]句意:一些人不能照顾自己，但机器人能在日常生活中帮助他们。A. work工作B. study学习; C.
life生活; D. way道路;根据For example, some blind people use dogs to help themselves around.可知是日常生活;故选C。
[小题6]句意:例如一些盲人使用狗来帮助他们四处走。A. walk走;B. stand站; C.sit 坐; D. stop停
下;根据句意故选A。
[小题7]句意:现在科学家正在制造一种机器人来帮助这些人。A. show示; B.tell 告诉; C.see 看; D.
help帮助;根据句意故选D。
[小题8]句意:在未来机器狗也许能代替这些导盲犬。根据These dogs are guide dogs.可知是导盲犬;故选B。
[小题9]句意:在美国的一些医院里，人们也使用机器人。根据At one hospital, a robot takes meals from the kitchen to sick people's rooms.可知是医院;故选C。
[小题10]句意:它从来不迷路。lose one's way迷路，根据because it has a map of the hospital in its computer system(系统) .故选B。
点睛:根据前后文语境，结合时态，语态，词性,短语,句型，词义辨析和主谓一致，选出正确的选项。例如: 小题9句意:在美国的一些医院里，人们也使用机器人。根据At one hospital, a robot takes meals from the kitchen to sick people's rooms.可知是医院;故选C。
[答案] [小题1] A
[小题2] C
[小题3] C
[小题4] D
[导语]本文主要讲述了电子设备在很多方面帮助我们，但它们也可能导致身心健康问题，短文也给出了建议。
[小题1]细节理解题。根据“To help your eyes stay healthy, follow the“20-20-20 rule: After 20 minutes' use of eyes,look at something 20 feet away for 20 seconds.”可知，遵循“20-20-20”法则:每隔20分钟，盯着20英尺远的东西看20秒，第一个“20”指的是用眼的时长。故选A。
[小题2]细节理解题。根据"Doctors say the scree light stops you from feeling sleepy."可知因为屏幕的灯光，人们很难入睡。故选C。
[小题3]代词指代题。根据“Another serious danger is Internet addiction. Many people turn to the Internet to make light of feelings of stress, sadness, and loneliness. Over time, they might start to depend on the Internet and feel worried if they're not online.”可知许多人求助于互联网来缓解压力、悲伤和孤独，随着时间的推移，他们可能会开始依赖互联网，如果他们不能上网就会感到担心。这里they指的是网瘾重的人,故选C。
[小题4]标题归纳题。本文主要讲述了电子设备在很多方面帮助我们，但它们也可能导致身心健康问题，短文也给出了建议。用"The advice about using the electronic devices"做标题最合适。故选D。
[答案]范文
Computers are quite useful in my life. Here are three main reasons for this. To start with, I can find almost everything that I want to know by surfing the Internet on computers. It's faster to search for information on computers than on mobile phones. Besides, when I get bored, I will use computers to play games which can make me feel excited. Last but not least, computers can be used to store a large number of pictures, videos and e-books. From what has been discussed above, I firmly believe that computers are necessary to my life.
[详解]题干解读:这篇作文要求以Computers are useful to my life为主题，介绍电脑在你的生活中的使用。这是一篇话题作文，题目中并没有规定具体的写作内容，学生们应发挥自己的想象力，联系自己的实际生活，讲一讲自己平时都使用电脑做什么。审题可知，这篇短文应使用第一人称、一般现在时态为主来叙述。
例文点评:这是篇优秀的作文，短文作者介绍了自己在日常生活中如何使用电脑的。文章有以下几个优点:首先文章内容充实、丰富,叙述清晰，贴近日常生活，符合情理。其次短文中使用了正确的人称和时态，语法规范，用词准确。句式结构完整，使用了简单句、并列句、定语从句、状语从句等复合句。句子之间使用了恰当的连接成分，文意连贯，表达流畅。
高分亮点:
短语: to start with; surf the Internet; search for; get bored; play games; Last but not least; a large number of。
句型: To start with, I can find almost everything that I want to know by surfing the Internet on computers.; Besides, when I get bored, I will use computers to play games which can make me feel excited; From what has been discussed above, I firmly believe that computers are necessary to my life.
试卷第1页，共3页
试卷第1页，共3页
Unit 3 Computers
Period 1 Reading I
分层作业
A层作业以夯实基础
根据中文提示填空
1．It’s said that the first t________ of clothes were made of animal skins.（根据首字母填空）
2．As we know, good results d________ on hard work.（根据首字母填空）
3．We plan to buy a better TV with a bigger s____.（根据首字母填空）
4．Mary was badly ill. The doctor said that he had to o________ on her at once.（根据首字母填空）
5．So far, China is the first country in the world to ________（限制；管理）the spreading(传播) of COVID-19 successfully.（根据汉语提示填空）
6．Mary was the ________ (极小的) baby born in 2003, but now she is pretty tall.（根据汉语提示填空）
7．Teenagers should know that staring at a ________（屏幕）for a long time is bad for eyes.（根据汉语提示填空）
8．________（控制）the spread of the disease depends on everyone’s action.（根据汉语提示填空）
9．More and more people have been ________ (意识) of the great harm of smoking.（根据汉语提示填空）
10．You can o________ (订购) some food on the Internet.（根据汉语及首字母填空）
二、多句选词填空
从下面方框中选择适当的单词或短语填空，使内容完整正确。
afford to, depend on, from time to time, give a chance to, make a difference to
1. The Special Olympic Games_______the children and adults with intellectual disabilities.
2. The old man feels lonely_______because it's difficult to see his good friends.
3. We human beings_______the rich resources of nature to live and work.
4. Many of the families in developing countries can't________go to hospital.
5. We all know that if we try to do something. everyone can_________our city
B层作业：能力提升
三、完形填空
We can use robots in many different places now, but robots don't have a 1 history. We usually see robots in the films.The robots in these 2 are stronger, faster and clever than people. In real life, people 3 robots in factories most of time Robots can do many dangerous, difficult or boring jobs for 4 .Some people can't look after themselves but robots can help them in everyday 5 .For example, some blind people use dogs to help themselves 6 around.These dogs are guide dogs. And now scientists are making a robot to 7 these people. In the future, robot dogs may take the place of these 8 . And these robot dogs can help blind people to do many other useful things.
People also use robots in some American 9 .At one hospital, a robot takes meals from the kitchen to sick people's rooms. It never 10 its way because it has a map of the hospital in its computer system (系统).
In the future, robots will work in many different ways. But robots will never take the place of human.
1. A. short B. old C. young D. long
2. A. films B. books C. stories D. jobs
3. A. make B. take C. use D. do
4. A. animals B. people C. machines D. teachers
5. A. work B. study C. life D. way
6. A. walk B. stand C. sit D. stop
7. A. show B. tell C. see D. help
8. A. people B. guide dogs C. machines D. children
9. A. schools B. factories C. hospitals D.companies
10. A. finds B. loses C. comes D. goes
四、阅读单选
How much time do you spend 1ooking at your smartphone or computer every day These electronic devices (电子设备) help us in many ways, but they may also cause health problems.
Too much screen time can cause your eyes to feel dry and sore and is not good for your eyesight. To help your eyes stay healthy follow the“20-20 20" rule: After 20 minutes' use of eyes, look at something 20 feet away for 20 seconds.
Your eyes aren't the only pats of your body that could become worse from using electronic devices. People who write a lot of text messages can develop“texting thumb". which will 1ead to the 1oss of grip strength (抓力).
Scientific research shows that smartphones can also hurt your mind. One of the biggest problems is that using smartphones can affect (影响) your sleep patterns. Doctors say the screen light stops you from feeling sleepy. So they advise people not to use smartphones for at least one hour before trying to sleep.
Another serious danger is Internet addiction (沉迷). Many people turn to the Internet to make light of feelings of stress, sadness,and loneliness. Over time, they might start to depend on the Internet and feel worried if they 're not online. To stop yourself from falling into this kind of trouble, control the time you spend on electronic devices.
To use your smartphone or computer safely. just make sure you follow the advice. Also, remember that there is more to life than looking at an electronic screen.
1. The first“20”of the“20-20-20" rule in the passage means__________.
A. how 1ong you use your eyes
B. how often you take a break
C. how far you look at things from you
D. how many things you need to do at the break
2. According to the passage, we can know that_______.
A. too much screen time won't cause eye problems
B.“texting thumbs”will make your eyes dry and sore
C. it's hard for people to sleep because of the screen light
D. people will feel sad when they are connected to Internet
3. The underlined word“they" in Paragraph 5 refers to (指代)_________.
A. computer games or Internet
B. several serious mind problems
C. people who have Internet addiction
D. feelings of stress, sadness and loneliness
4. What's the best title for the passage
A. The electronic devices
B. The more important things in life
C. The health problems
D. The advice about using the electronic devices
C层作业:拓展延伸
制作一张手抄报，以“计算机对我的生活有用”为主题。
要求：
至少160字。
列出至少三个事实来证明这一点。
可以文字结合图片加以说明，语句通畅，内容丰富。
参考答案：
一、根据中文提示填空
1．(t)ype
【详解】句意：据说第一种衣服是用动物皮做的。根据句意和首字母提示可知，type意为“种类、类型”；由the first可知，这里用单数名词。故填(t)ype。
2．(d)epend
【详解】句意：众所周知，好的结果取决于努力工作。根据“good results...on hard work”以及首字母并结合常识可知，好的结果取决于是否努力工作，depend on“取决于”，句子描述一般情况，用一般现在时，主语是“good results”，谓语用原形。故填(d)epend。
3．(s)creen
【详解】句意：我们计划买一台屏幕更大的更好的电视机。根据空前“a better TV”和首字母提示可知，空处应是screen，屏幕，可数名词，因之前有不定冠词a修饰，故名词应用单数形式。故填(s)creen。
4．(o)perate
【详解】句意：玛丽病得很重。医生说他必须马上给她做手术。have to do sth.不得不/必须做某事；根据题干“Mary was badly ill. The doctor said that he had to…on her at once”和首字母提示，可知必须马上给她做手术；operate on给……做手术，故填(o)perate。
5．control
【详解】句意：迄今为止，中国是世界上第一个成功控制新冠病毒传播的国家。“限制；管理”control，动词；to后跟动词原形构成动词不定式结构。故填control。
6．tiny
【详解】句意：玛丽是2003年出生的那个小婴儿，但现在她长得相当高了。tiny“极小的”，作定语修饰baby，故填tiny。
7．screen
【详解】句意：青少年应该知道长时间盯着屏幕对眼睛不好。screen“屏幕”，根据空前的“a”可知，要用名词单数。故填screen。
8．Controlling
【详解】句意：控制这种疾病的传播取决于每个人的行动。控制：control；根据句意可知，此处“控制传播”是动宾结构，所以此处control应取动词的含义；再结合成分分析可知，挖空处到“disease”在句中作主语且该主语强调的是“控制疾病传播”这个事情的本身，所以此空应用动词control对应的动名词形式controlling作主语，句首首字母c应大写。故填Controlling。
9．aware
【详解】句意：越来越多的人已经意识到抽烟的巨大害处。be aware of表示“意识到”，固定搭配。故填aware。
10．(o)rder
【详解】句意：你可以从网上订一些食物。根据汉语提示以及首字母提示可知，订购order。再根据空前的“can”可知，情态动词后加动词原形，所以此处用order。故填(o)rder。
二、多句选词填空
从下面方框中选择适当的单词或短语填空，使内容完整正确。
[答案] [小题1] give a chance to
[小题2] from time to time
[小题3] depend on
[小题4] afford to
[小题5] make a difference to
[解析] [小题1] 句意:特奥会给了有智力障碍的儿童和成人一个机会。根据"the children and adults with intellectual disabilities"可知，此处表达给了这些人机会，give a chance to sb“给某人一次机会” ，说明一般情况，句子用一般现在时，主语是复数形式，所以动词用原形。故填give a chance to。
[小题2]句意:这位老人有时感到孤独，因为很难见到他的好朋友。根据“The old man feels lonely”可知空处作句子的状语，结合所给词汇可知，此处是表达“有时感到孤独”, from time to time“有时”。故填from time to time。
[小题3]句意:我们人类依靠丰富的自然资源生活和工作。根据the rich resources of “nature”可知，此处是表达“依靠丰富的自然资源”，depend on“依靠”，句子是一般现在时， 主语是复数，所以动词用原形。故填depend on。
[小题4]句意:许多发展中国家的家庭无法负担去医院的费用。根据“go to hospital”可知,此处是表达无法负担
去医院的费用”，afford to do sth“担负得起做某事”，情态动词后用动词原形。故填afford to。
[小题5]句意:我们都知道，如果我们努力做些什么，每个人都可以对我们的城市产生影响。根据“if we try to do something,” 可知，此处是表达“对我们的城市产生影响”，make a difference to“对.....产生影响”，情态动词后用动词 原形。故填make a difference to。
三、完形填空
[答案]
[小题1] D
[小题2] A
[小题3] C
[小题4] B
[小题5] C
[小题6] A
[小题7] D
[小题8] B
[小题9] C
[小题10] B
[分析]文章讲述了机器人的事情。
[小题1]句意:但是机器人的历史并不长。A. short短的; B. old老的; C. young年轻的; D. long长的;根据句意故选D。
[小题2]句意:这些电影当中的机器人比人又壮又快又聪明。根据We usually see robots in the films故选A。
[小题3]句意:在真实生活当中人们在工厂大部分时间使用机器人。A. make制造; B. take带走; C. use使用; D.do做;根据Robots can do many dangerous, difficult or boring jobs可知是使用;故选C。
[小题4]句意:机器人能为人们做许多危险的、无聊的或者困难的工作。A. animals动物; B. people问; C.
machines机器; D. teachers老师;根据句意故选B。
[小题5]句意:一些人不能照顾自己，但机器人能在日常生活中帮助他们。A. work工作B. study学习; C.
life生活; D. way道路;根据For example, some blind people use dogs to help themselves around.可知是日常生活;故选C。
[小题6]句意:例如一些盲人使用狗来帮助他们四处走。A. walk走;B. stand站; C.sit 坐; D. stop停
下;根据句意故选A。
[小题7]句意:现在科学家正在制造一种机器人来帮助这些人。A. show示; B.tell 告诉; C.see 看; D.
help帮助;根据句意故选D。
[小题8]句意:在未来机器狗也许能代替这些导盲犬。根据These dogs are guide dogs.可知是导盲犬;故选B。
[小题9]句意:在美国的一些医院里，人们也使用机器人。根据At one hospital, a robot takes meals from the kitchen to sick people's rooms.可知是医院;故选C。
[小题10]句意:它从来不迷路。lose one's way迷路，根据because it has a map of the hospital in its computer system(系统) .故选B。
点睛:根据前后文语境，结合时态，语态，词性,短语,句型，词义辨析和主谓一致，选出正确的选项。例如: 小题9句意:在美国的一些医院里，人们也使用机器人。根据At one hospital, a robot takes meals from the kitchen to sick people's rooms.可知是医院;故选C。
[答案] [小题1] A
[小题2] C
[小题3] C
[小题4] D
[导语]本文主要讲述了电子设备在很多方面帮助我们，但它们也可能导致身心健康问题，短文也给出了建议。
[小题1]细节理解题。根据“To help your eyes stay healthy, follow the“20-20-20 rule: After 20 minutes' use of eyes,look at something 20 feet away for 20 seconds.”可知，遵循“20-20-20”法则:每隔20分钟，盯着20英尺远的东西看20秒，第一个“20”指的是用眼的时长。故选A。
[小题2]细节理解题。根据"Doctors say the scree light stops you from feeling sleepy."可知因为屏幕的灯光，人们很难入睡。故选C。
[小题3]代词指代题。根据“Another serious danger is Internet addiction. Many people turn to the Internet to make light of feelings of stress, sadness, and loneliness. Over time, they might start to depend on the Internet and feel worried if they're not online.”可知许多人求助于互联网来缓解压力、悲伤和孤独，随着时间的推移，他们可能会开始依赖互联网，如果他们不能上网就会感到担心。这里they指的是网瘾重的人,故选C。
[小题4]标题归纳题。本文主要讲述了电子设备在很多方面帮助我们，但它们也可能导致身心健康问题，短文也给出了建议。用"The advice about using the electronic devices"做标题最合适。故选D。
[答案]范文
Computers are quite useful in my life. Here are three main reasons for this. To start with, I can find almost everything that I want to know by surfing the Internet on computers. It's faster to search for information on computers than on mobile phones. Besides, when I get bored, I will use computers to play games which can make me feel excited. Last but not least, computers can be used to store a large number of pictures, videos and e-books. From what has been discussed above, I firmly believe that computers are necessary to my life.
[详解]题干解读:这篇作文要求以Computers are useful to my life为主题，介绍电脑在你的生活中的使用。这是一篇话题作文，题目中并没有规定具体的写作内容，学生们应发挥自己的想象力，联系自己的实际生活，讲一讲自己平时都使用电脑做什么。审题可知，这篇短文应使用第一人称、一般现在时态为主来叙述。
例文点评:这是篇优秀的作文，短文作者介绍了自己在日常生活中如何使用电脑的。文章有以下几个优点:首先文章内容充实、丰富,叙述清晰，贴近日常生活，符合情理。其次短文中使用了正确的人称和时态，语法规范，用词准确。句式结构完整，使用了简单句、并列句、定语从句、状语从句等复合句。句子之间使用了恰当的连接成分，文意连贯，表达流畅。
高分亮点:
短语: to start with; surf the Internet; search for; get bored; play games; Last but not least; a large number of。
句型: To start with, I can find almost everything that I want to know by surfing the Internet on computers.; Besides, when I get bored, I will use computers to play games which can make me feel excited; From what has been discussed above, I firmly believe that computers are necessary to my life.
试卷第1页，共3页
试卷第1页，共3页