Unit 4 Lesson 19-21 作业练习2023-2024学年冀教版八年级英语下册

八下 U4 Lesson 19-21 作业练习 一、根据句意及所给提示写单词 1. With the development of 5G ___________ (技术), our daily lives have become more and more convenient(便利的). 2. Usually I use a ________ (平板电脑)or laptop instead of a _________ (台式电脑). 3. Our country encourages the market stall _________ (行业). 4. The ___________ (键盘)is broken. I need to buy a new one. 5. To his surprise, his best friend refused his ____________ (邀请). 二、用括号内所给单词的适当形式填空 1. I _________ (enter) a big museum and saw lots of ancient things yesterday. 2. The thunder was so loud that the cat ________ (hide) itself in a box. 3. We will have three ________ (topic) at the meeting today. 4. There are some festivals in __________ (west) culture. Do you know what they are? 5. Open different locks with different ________ (key). 三、单项选择 1. ________ is our duty to make our country better and stronger. A. It B. This C. That D. One 2. ________ he says, I won’t believe him at all. A. No matter what B. No matter where C. No matter when D. No matter how 3. If all of us ________ working hard, we’re sure to build a stronger China. A. come on B. hold on C. turn on D. keep on 4. Shanghai is a big ________ city with a large population in China. A. usual B. modern C. social D. honest 5. ________ people watched the rocket flying up into the sky. A. Thousand B. Thousands C. Thousand of D. Thousands of 6. —Do you think we should eat out tonight? — Well... We can save money ________ cooking our own meals instead of eating outside. A. by B. to C. for D. with 7. The development of the “Sky Eye” has shown our country’s progress in new _______. A. nature B. technology C. journey D. temperature 8. I’ll give the book to Alan _______ he comes here. A. before B. unless C. though D. if 9. The new computer is so nice. The keys on the ________ are smooth. A. tablet B. keyboard C. reason D. ground 10. —What is Mrs. Cox doi