Unit 6 When was it invented Section A (3a-4c)同步分层练习（含答案）

中小学教育资源及组卷应用平台
Unit 6　When was it invented
Section A (3a-4c) 同步分层练习
【知识点过关练】
一、根据语境,用所给词的适当形式填空
1.Look! The water in the pot is_______ (boil).
2.(2020·贵阳中考)Beijing opera, an important part of Chinese culture, _______ (have) a history of over 200 years.
3.The _______ (nation) Day of China has become a 7-day holiday for people to travel and relax.
4.Can you name some ancient _______ (ruler)
5.The dog _______ (smell) the food on the plate and went away.
6.Tea, the most popular drink,is an _______ (accident) invention.
二、根据中文意思,补全英语译文,每空一词
1.刚刚我看到一些树叶随风落在水里。
I saw some leaves _______ _______ the water in the wind just now.
2.毫无疑问,阅读对我们有好处。
_______ _______,reading is good for us.
3.茶,一种很受欢迎的饮品,是偶然被发明。
Tea,a very popular drink, was invented _______ _______.
4.据说茶是神农发现的。
_______ _______ that tea was discovered by Shen Nong.
5.自从她来到这里,许多变化已经发生了。
Since she came here,many changes have _______ _______.
6.只有看了这个节目,你才能意识到中国的食物是多么奇妙。
You _______ realize how wonderful the Chinese food is _______ you watch the program.
【核心素养提升练】
三、短文还原
Don’t be too surprised if you see a car going down the road without a driver in Beijing. 1.　　 Baidu began to test its self-driving cars on open roads in Beijing.
2.　　 Since then, companies like Tesla, Uber and Baidu have been working to produce and test their own self-driving cars.
Self-driving cars are safer than regular cars. 3.　　 They can remove the stress of driving and allow disabled or blind people to get around more easily.
4.　　 In one test, researchers pointed a laser pointer(激光棒)at the car’s sensors(传感器)while it was moving. The car mistakenly thought that the laser beam was in its way and slowed down or changed the direction.
The software that is used to direct the cars may not be safe enough. 5.　　 When we use our computers or smartphones, they sometimes crash(崩溃)without any reason. But if this happened to a self-driving car, the results could be deadly. Improvements to the software could be a solution to this problem.
A.At times, it may break down.
B.Self-driving cars began to develop in 2010.
C.It might be one of Baidu’s self-driving cars.
D.But self-driving cars have their own problems as well.
E.And they are more environmentally friendly than regular cars.
F.Self-driving cars are perfect and never break down in any situations.
1_____2______3______4_____5______
参考答案
一、根据语境,用所给词的适当形式填空
1. boiling
2. has
3. National
4. rulers
5. smelled/smelt
6. accidental
二、根据中文意思,补全英语译文,每空一词
1. fall into
2.Without doubt
3. by accident.
4. It’s said
5. taken place
6. won’t until
三、短文还原
1.　C　 2.　B　 3.　E　4.　D　5.　A　
21世纪教育网(www.21cnjy.com)