《2025年全效学习八年级英语上册外研版》

 Ⅰ.根据句意及汉语注释完成单词
1. The new tool can weigh(重)objects up to 100 kg.
2. The new app is great, but it costs(需支付)a lot of money.
3. Can you lend(帮助……做事)me a hand? My dictionary is left at home.
4. The science fair(展览会)had many cool inventions, like a robot that can clean your room!
5. The new robot has a computer that works like a human brain(大脑), helping it solve problems.

答案： Ⅰ.1.weigh 2.costs 3.lend 4.fair 5.brain

 Ⅱ.从括号中选择正确的单词完成句子
1. The engineer used a tool to fix (fix/make) the broken engine of the car.
2. Could you lend (borrow/lend) me your dictionary? I forgot to bring mine today.
3. Before watching the movie, you need to download ( download/upload ) it from the Internet.
4. This smart fridge can check if your milk weighs over one kilogram (kilometre/kilogram).
5. The new smartphone cost (cost/pay) 5,000 yuan, but I only paid (cost/paid) 4,800 yuan for it during the sale.

答案： Ⅱ.1.fix 2.lend 3.download 4.kilogram 5.cost; paid

Ⅲ.词汇运用
将方框中所给单词的适当形式填入短文中,每词仅用一次。
keep send without say because
Daming: Which of these inventions do you think is the most important, Betty?
Betty: It's difficult 1. to say. They've all changed our lives.
Lingling: I think my mobile phone is useful 2. because I can use it anywhere.
Daming: Yes. I use my phone 3. to keep all my friends' numbers, so I don't need a notebook.
Betty: Today's cameras are better than old ones because they can film.
Daming: Yes, and people also love 4. sending/to send photos by email.
Lingling: Well, I think everything has changed because of computers to some degree, so I think the computer is the most important invention.
Daming: I agree. I can't imagine living 5. without computers.

答案： Ⅲ.1.to say 2.because 3.to keep 4.sending/to send 5.without

Ⅳ.语法填空
Many think big inventions change the world, but small creations can also make much 1. difference (different). Consider the paperclip(回形针). Though it was invented in 1899, its simple design solves a problem we still face today: Keeping pieces of paper together without 2. losing (lose) them.
The story of Post-it Notes is even 3. more interesting (interesting) than that. In 1968, a scientist at 3M Company created a weak glue by accident. For years, no one 4. knew (know) what to do with it until his workmate used it as bookmarks(书签). This shows how failed experiments can turn 5. into useful inventions if we rethink their purposes.

What makes these small inventions came out 6. successfully (successful)? First, they meet daily needs. 7. Second (two), they improve existing tools instead of creating completely new ones. Most importantly, they require(需要)8. us (we) to watch life closely. Then amazing things happened. As the saying goes, "Necessity(必要)is 9. the mother of invention." 10. But this doesn't mean inventors must wait for problems to come. Sometimes, they create solutions to problems we didn't even realise we had!

答案： Ⅳ.1.difference 2.losing 3.more interesting 4.knew 5.into 6.successfully 7.Second 8.us 9.the 10.But

不知你是否记住了画波浪线的词语?请再复习一遍并收入自己的小词典!
1.书签 bookmark
2.需要 require
3.必要 necessity

答案： 词汇拓展：1.bookmark 2.require 3.necessity