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Unit 8第3课时Grammaring课后练习
一、根据句意及首字母提示写出单词，使句子完整正确。
1. The robot cleaner can a______ sweep up the dust and dirt on the floor.
2. VR glasses can offer new e______ on classic games, movies, and more.
3. If people use electric cars instead of gas-powered cars, the e______ will become cleaner.
4. You need to update your s______ regularly to keep your computer safe.
5. If you are in trouble, you can call your parents with your s______.
二、短语英汉互译
1. instead of gas-powered cars ________________________
2. 被黑客攻击的风险 ________________________
3. feel like in a different world ________________________
4. 清扫灰尘和污垢 ________________________
5. pick up crumbs on the floor ________________________
三、单项选择
( )1. If my room ______ dirty, the robot will clean it.
A. get B. gets C. will get
( )2. If you use VR glasses, you ______ like you are in a different world.
A. feel B. will feel C. felt
( )3. You ______ choose a driverless car if you need to take a taxi to school.
A. will B. won’t C. are
( )4. If there ______ no washing machines, people will spend more time washing clothes.
A. is B. are C. will be
( )5. If you ______ update your software regularly, your computer will be at risk.
A. don’t B. won’t C. not
四、按要求改写句子，每空一词。
1. If I use a 3D printer, I will create many objects easily.（改为否定句）
If I use a 3D printer, I ______ ______ many objects easily.
2. The robot will sweep the dust if the room is dirty.（改为一般疑问句）
______ the robot ______ the dust if the room is dirty
3. If you connect to the internet, you will have a lot of information.（改为同义句）
You will have a lot of information ______ you connect to the internet.
4. If I walk home, I can listen to music.（用 when 改写句子，保持句意不变）
______ I walk home, I can listen to music.
5. The air will become cleaner if people use electric cars.（对划线部分提问）
______ will ______ if people use electric cars
18. 四、完形填空
五、根据汉语提示，用 If...will/can... 句型完成句子。
1. If I take a solar-powered phone to the desert, ________________________.（我可以随时联系我的父母）
2. ________________________, the environment will become much cleaner.（如果人们少开燃油车）
3. If I get lost in the city, ________________________.（我会用智能手机求助）
4. If there are no smart home devices, ________________________.（人们会花更多时间做家务）
5. ________________________ if you don’t protect your computer well.（你的电脑会有被攻击的风险）
六、用 if 将两个句子合并成一句，注意时态和标点。
1. You use a voice-controlled phone. You can control it without touching it.
_________________________________________________________________________
2. The technology develops fast. Our life will become easier and smarter.
_________________________________________________________________________
3. You don’t check your emails carefully. You may open dangerous links.
_________________________________________________________________________
4. I have free time this weekend. I will try the new VR game with you.
_________________________________________________________________________
5. People drive more electric cars. There will be less air pollution.
_________________________________________________________________________
七、完形填空
阅读短文，从 A、B、C 三个选项中选出最佳答案。
What will life be like in the future Many people believe that technology will change everything. If we use smart robots in our homes, they 1.______ help us with housework. For example, if the floor gets dirty, a robot cleaner 2.______ sweep it up right away.
If people drive electric cars instead of gas-powered ones, the air 3.______ cleaner. But not everyone likes new technology. If self-driving cars become common, some people 4.______ still prefer to drive by themselves. They think it is safer.
What about VR technology If you wear VR glasses, you 5.______ visit a virtual world. It feels so real! However, if you use it too much, you 6.______ have eye problems. So you need to take breaks.
If we don’t protect our computers well, they 7.______ at risk of being hacked. We must update the software regularly. If we do this, our computers 8.______ work better and stay safe.
All in all, technology is changing fast. If we learn to use it properly, it 9.______ make our life better. But if we don’t, there 10.______ be some problems. We should always be careful.
( )1. A. will B. can C. won’t
( )2. A. will B. is C. won’t
( )3. A. become B. will become C. became
( )4. A. will B. won’t C. are
( )5. A. can B. will C. can’t
( )6. A. will B. won’t C. can
( )7. A. is B. will be C. are
( )8. A. will B. won’t C. are
( )9. A. will B. won’t C. is
( )10. A. will B. won’t C. can
八、情景对话
从方框中选择合适的句子补全对话，有两项多余。
A. Why will you choose that B. That sounds interesting.
C. What will you take if you go to the desert D. What else do you know about future tech E. I think so too. F. Can you help me with my homework
G. I don’t like technology.
A: Hi, Tom! What are you doing
B: I’m reading about future technology. It’s so cool!
A: Really 1. ______
B: Well, if I can take one tech device to the desert, I will take a solar-powered phone.
A: 2. ______
B: Because if I get lost, I can call my parents with it.
A: That’s smart. 3. ______
B: If I use VR glasses, I can visit a virtual museum even at home.
A: Wow! What about cars in the future
B: If people use more electric cars, the environment will become cleaner.
A: 4. ______ Do you think driverless cars are safe
B: If the technology is good enough, they will be safe. But some people won’t trust them at first.
A: 5. ______ Thanks for sharing your ideas!
九、阅读理解
阅读短文，根据短文内容选择最佳答案。
Future Tech for Students
Do you know how technology will help students in the future Here are some ideas.
If you have a smart pen, you can write notes on paper, and it will save them to your phone. If you forget your notebook, you can still check your notes online. That’s really helpful!
If you use a 3D printer at school, you can print models for science projects. For example, if you learn about the solar system, you can print small planets and put them on your desk. It makes learning more fun.
If you wear a special watch, it can tell you when to take a break. If you study for too long, the watch will remind you to stand up and move. This is good for your health.
However, there are some problems too. If you use too much technology, you may forget how to write with a real pen. Also, if you spend too much time online, you may not talk to your friends face to face.
Technology can be great if we use it well. It can help us learn better and live healthier lives.
( )1. If you have a smart pen, it will ______.
A. write notes for you B. save notes to your phone
C. print your homework
( )2. You can use a 3D printer to ______.
A. print science project models B. make real planets C. draw pictures
( )3. The special watch will remind you to ______ if you study too long.
A. sleep B. take a break C. eat food
( )4. What problem may happen if you use too much technology
A. You may write better. B. You may forget how to use a real pen.
C. You will have more friends.
( )5. The writer thinks technology is good ______.
A. all the time B. if we use it well C. for students only
十、书面表达
题目：My Future Tech Life
要求：
1. 围绕 “未来科技生活” 主题，写一篇 60 词左右的短文；
2. 至少使用 3 个本课所学的 If...will/can... 句型；
3. 语句通顺，语法正确，书写工整。
_______________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案
一、根据句意及首字母提示写出单词
1. automatically
解析：句意：这款清洁机器人可以自动清扫地面的灰尘和污垢。automatically 副词，意为 “自动地”。
2. experiences
解析：句意：VR 眼镜能在经典游戏、影片等方面带来全新体验。experience 此处为可数名词，意为 “体验”，用复数形式。
3. environment
解析：句意：如果人们使用电动汽车代替燃油汽车，环境将会变得更洁净。environment 名词，“环境”。
4. software
解析：句意：你需要定期更新软件来保护电脑安全。software 名词，“软件”。
5. smartphone
解析：句意：如果你遇到麻烦，可以用智能手机联系父母。smartphone 名词，“智能手机”。
二、短语英汉互译
1. 代替燃油汽车
2. at risk of being hacked
3. 感觉置身另一个世界
4. sweep up the dust and dirt
5. 捡起地上的碎屑
三、单项选择
1. B
解析：考查第一条件句。if 引导的条件从句用一般现在时，主语 my room 是第三人称单数，动词用 gets；从句不能使用 will。
2. B
解析：if 从句为一般现在时，主句要用 will + 动词原形，表将来结果。
3. A
解析：句意：如果你上学需要打车，你可以选择无人驾驶汽车。结合条件句结构，主句用 will。
4. B
解析：there be 句型遵循 “就近原则”，后面 washing machines 是复数，be 动词用 are；if 从句用一般现在时。
5. A
解析：if 从句为一般现在时，主语 you 对应的否定形式用 don’t，从句不用 will。
四、按要求改写句子
1. won’t create
解析：主句变否定，will 的否定形式为 won’t，后接动词原形。
2. Will; sweep
解析：含 will 的句子变一般疑问句，直接将 will 提至句首，动词用原形。
3. if
解析：if 从句可以后置，句意不变。
4. When
解析：when 引导时间状语从句，此处可与 if 互换，句意 “当我步行回家时，我可以听音乐”。
5. What; happen
解析：划线部分为动作结果，提问用 what，助动词 will 后接动词原形 happen。
五、根据汉语提示，用 If...will/can... 句型完成句子
1. I can call my parents anytime
2. If people use fewer gas-powered cars
3. I will call for help with my smartphone
4. people will spend more time doing housework
5. Your computer will be at risk of being hacked
解析：本题核心考查 If + 一般现在时，主语 + will/can + 动词原形 句型，结合中文提示，保证时态、主谓一致即可。
六、用 if 将两个句子合并成一句
1. If you use a voice-controlled phone, you can control it without touching it.
2. If the technology develops fast, our life will become easier and smarter.
3. If you don’t check your emails carefully, you may open dangerous links.
4. If I have free time this weekend, I will try the new VR game with you.
5. If people drive more electric cars, there will be less air pollution.
解析：前句作 if 条件从句（一般现在时），后句作主句（will/can/may + 动原）；if 置于句首时，从句后加逗号。
七、完形填空
1. A 解析：if 从句为一般现在时，主句用 will 表将来。
2. A 解析：机器人看到地面脏了，就会立刻清扫，用 will。
3. B 解析：条件表假设，主句用 will become。
4. A 解析：句意：即使无人驾驶汽车普及，有些人依然会选择自己开车。
5. A 解析：戴上 VR 眼镜，你可以进入虚拟世界，用 can。
6. A 解析：过度使用 VR，将会引发眼部问题，用 will。
7. B 解析：if 从句一般现在时，主句用 will be。
8. A 解析：定期更新软件，电脑将会更安全、运行更流畅。
9. A 解析：合理使用科技，生活会变得更好。
10. A 解析：使用不当，将会出现很多问题。
八、情景对话
1. C 解析：根据答语 “if I can take one tech device to the desert”，问句询问去沙漠会带什么设备。
2. A 解析：答语用 Because 回答原因，问句用 Why 提问。
3. D 解析：下文介绍了 VR 眼镜，此处询问还有哪些关于未来科技的内容。
4. B 解析：上文讲述电动汽车的好处，此处表示 “听起来很不错”。
5. E 解析：赞同对方观点，结束对话。
答案：1.C 2.A 3.D 4.B 5.E
九、阅读理解
1. B 解析：由文中 “it will save them to your phone” 可知答案。
2. A 解析：由 “you can print models for science projects” 可知答案。
3. B 解析：由 “the watch will remind you to stand up and move” 可知手表提醒休息。
4. B 解析：由 “you may forget how to write with a real pen” 可知过度使用科技的弊端。
5. B 解析：由最后一句 “Technology can be great if we use it well” 可知作者观点。
答案：1.B 2.A 3.B 4.B 5.B
十、书面表达（参考范文）
My Future Tech Life
Technology changes our life a lot. If I get up late, a smart car will take me to school quickly. If I have much housework, a robot can help me finish it. When I am free, I will wear VR glasses to have fun. If we make good use of high technology, our life will become more wonderful.
写作解析
1. 全文紧扣未来科技主题，词数符合要求；
2. 用到四句 If...will/can... 句型，紧扣本课语法重点；
3. 语句通顺，时态统一，句式丰富。
基础巩固
能力运用
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