Ⅳ. Rewrite the sentences(按要求改写下列句子,每空一词)
1. The computer is a useful tool.(改为复数句)
useful .
2 The first computer was heavy. It weighed the same as four elephants.(用as...as合并为一句话)
The first computer was four elephants.
3 We can write emails on the computer.(对画线部分提问)
you on the computer?
4. Early computers had no keyboards.(改为同义句)
Early computers keyboards.
5. Don't use your birth date as the password.(用should改写,保持句意基本不变)
You your birth date as the password.

1. Computers are;tools 2. as heavy as 3. What can;do 4. didn't have 5. shouldn't use

【分析】
1. 单数句改复数句时，需将句中的单数名词、be动词分别转换为对应的复数形式，保证句子语法一致；
2. 用as...as合并句子时，提取两个句子中描述相同属性的形容词，放入as...as结构中，保持句意不变；
3. 对动作划线提问时，用疑问词what，将原句情态动词提前，动词用do代替划线动作；
4. 表达“没有”时，had no可转换为“didn't have”，构成同义句；
5. 否定祈使句改为should的否定形式时，将“Don't + 动词原形”转换为“shouldn't + 动词原形”，保持句意基本不变。
【解析】
1. 原句单数：The computer（单数）→复数Computers，is→are，tool→tools，故填Computers are;tools；
2. 原句描述电脑重量，用as...as结构连接形容词heavy和比较对象four elephants，故填as heavy as；
3. 划线部分是动作write emails，用what提问，情态动词can提前，动词用do，故填What can;do；
4. had no表示“没有”，同义表达为didn't have，故填didn't have；
5. Don't use改为should的否定形式，即shouldn't use，故填shouldn't use。
【答案】1. Computers are;tools 2. as heavy as 3. What can;do 4. didn't have 5. shouldn't use
【知识点】英语句型转换、as...as结构、情态动词用法
【点评】本题为初中英语基础句型转换题，涵盖单复数转换、常用比较结构、特殊疑问句、同义句转换及情态动词否定用法，考察学生对基础语法和句型的掌握，是初中英语必掌握的基础题型。
【难度系数】0.8

Ⅴ. Read and write(阅读短文，回答下列问题)
Computers are useful tools, but we must use them wisely so that they do not influence(影响) our studies. First, set a clear time limit. For example, use the computer for only 30 to 60 minutes a day for homework or learning games. Second, finish your schoolwork before playing games or watching videos. Never let entertainment come first. Third, keep your computer in a shared room like the living room, not in your bedroom. This helps parents guide you. Fourth, take a 10-minute break every half hour to rest your eyes and move your body. Finally, use educational websites and apps to learn new things. If you follow these rules, your computer will help you study better instead of distracting you.
1. How long does the passage suggest using the computer each day?

2. How often should you take a break?

3. What is one good way to use the computer for learning?

4. Which rule do you think is the most important for you? Why?

1. For only 30 to 60 minutes a day.
2. Take a break every half hour.
3. Use educational websites and apps to learn new things.
4. 示例:I think the time limit is the most important because if I use the computer too long,I will feel tired and cannot focus on my homework.

【分析】
本题为英语阅读理解细节类题目，解题思路：先通读短文把握主旨，再针对每个问题的关键词，回到短文中定位对应语句，提取匹配信息作答；第4题为开放性问题，需结合短文规则和自身实际合理阐述理由。
【解析】
1. 问题询问每天建议使用电脑的时长，定位短文第一段中“use the computer for only 30 to 60 minutes a day”，提取对应内容作答。
2. 问题询问休息的频率，定位短文第一段中“take a 10-minute break every half hour”，整理为符合要求的语句作答。
3. 问题询问用电脑学习的好方法，定位短文第一段中“use educational websites and apps to learn new things”，直接提取内容作答。
4. 问题为开放性题目，需结合短文提到的规则，选择其一并说明合理理由，示例结合时间限制的重要性作答。
【答案】
1. For only 30 to 60 minutes a day.
2. Take a break every half hour.
3. Use educational websites and apps to learn new things.
4. 示例:I think the time limit is the most important because if I use the computer too long,I will feel tired and cannot focus on my homework.
【知识点】
阅读理解、细节理解
【点评】
本题考查学生从短文中提取具体信息的能力，第4题开放性问题需结合自身实际作答，整体难度适中，适合小学阶段学生练习。
【难度系数】
0.8