(新课标)Unit 6 When was it invented Section B 3a-Self check 精讲精练(含答案)

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Unit6 SectionB3a-Self check语言点精讲精练
I．语言点精讲
1. It is often difficult to decide on the inventor of certain inventions.
It’s hard to tell who came up with the idea first.
这两个句子中的it都是形式主语，真正的主语是后面的动词不定式to decide on the inventor of certain inventions和to tell who came up with the idea first.
句型为：It+ be+ adj.\ n.+ (for sb.) + to do sth.
It’s difficult for me to learn English well.
It’s important to get up early and play sports.
2. They asked us not to run in the hallway.
ask sb. to do sth. 请求某人做某事。其中动词不定式to do sth.在句子中作宾语补足语。
ask sb. not to do sth. 请求某人不做某事。
用于该句型的动词还有：tell ab. to do sth. 告诉某人做某事。
warn sb. to do sth. 警告某人做某事。
expect sb. to do sth. 期待某人做某事。
encourage sb. to do sth. 鼓励某人做某事。
The teacher told us to do our homework on time.
He encouraged us to achieve our dreams.
II．语言点精练
一、单项选择
( )1.Some things 　　　invented by accident.
A. can　　　　　　 B. were C. is D. was
( )2.　　　 is the key to knowledge.
A. Questions B. Problems C. Doubt D. Mistakes
( )3.—These bananas look different and they are sweet.
—Right. They 　　　here from Hainan yesterday.
A. was bought B. were brought C. bring D. are brought
( )4.The milk 　　　strange. Do you think it’s OK to drink
A. was tasted B. tasted C. is tasting D .tastes
( )5.At the end of the meeting Miss Green 　　　two minutes to decide whether she should join the project or not.
A. gave B. had given C. was given D. was giving
2、 用所给单词的适当形式填空。
6.The first paper __________ (make) in China in 105 AD.
7.In 610, papermaking ______________ (introduce) into Japan.
8.Kites ___________ (know) in China about 3,000 years ago.
9. Wheelbarrows (独轮手推车) _____________ (invent) in the Han Dynasty.
10. Gunpowder(火药）______________ (discover) by the Chinese hundreds of years ago.
三、完成句子，每空一词。
11. 学校图书馆书的数量是5000册。
__________ __________ __________ the books in the school library is 5,000.
12. 据说这所房子建造于1735年。
__________ __________ __________ the house was built in 1735.
13. 医生经常鼓励他多做运动。
The doctor often __________ __________ __________ __________ more sports.
14. 我们应该阻止这些孩子制造噪音。
We should __________ these children __________ __________ a noise.
15. 他不仅在中国有名，而且在全世界都很有名。
He is famous __________ __________ in China __________ __________ in the whole world.
四、完形填空
Housewives are working hard to clean grease(油腻) at every corner of the kitchen with their hands. Now, American scientists have invented a new kind of special 16 . It can help housewives say goodbye to the 17 work in the kitchen. After spraying(喷) some of the water on the kitchen table and floor. people can easily 18 the dirty points and areas.
Jeffrey Youngblood, a doctor of Purdue University, led his team to study _19 to make the dirty things easily cleaned for many years. Recently he 20 his study results to the world-"Self-cleaning water". There are some chemical(化学的 ) things in the water, which are safe to people. So don' t 21 . As a result people do not need to use too strong strength（力气） in cleaning their dirty things, wherever they are and whatever they are.
"Grease has 22 been a headache. Most of us know the fact that grease can' t be cleaned only by using water. However, the use of this water changes everything. 23 you want to clean grease easily, you can use this water. And it can be used to clean not only floors and walls, but also glasses and windows. It is also quite good to be used :o wash clothes, Dr. Youngblood said. Some users found this special water is also environmentally friendly, 24 any special smell.
Now the special water has a good 25_ ---"superwater". It’s very popular in America and many families are using it. . .
( )16. A. machine B. paper C. water D. oil
( )17. A. hard B. simple C. dangerous D. strange
( )18. A. cover B. clean C. find D. repair
( )19. A. when B. why C. how D. where
( )20. A. introduced B. guided C. added D. sold
( )21. A. wish B. stop C. work D. worry
( )22. A. yet B. never C. always D. just
( )23. A. 1f B. Though C. So D. Unless
( )24. A. with B. without C. besides D. for
( )25. A. home_ B. price C. friend D. name
五、阅读理解
Last week I finished a class at a middle school, receiving some meaningful answers after I
asked the students what they would tell their parents about money.
Max said he would say: “Dear Mom. I need to give you some advice on money. I need more allowances(零用钱）! Many teenagers had the same answer: As a teacher, I advise on a few allowances and more if the kid helps with housework. Now that the kids are in middle school. it's time to think about paying them for doing something. My son missed a lot of school when he was in middle school so I offered the down payment(分期付款)on a car if he wouldn’t miss any school as a high school student and the result was that he finally got the car.
Grace wanted to tell her mom. “Only buy what we need.” Spending wisely and saving money is a good idea for all the students. The idea of thinking carefully about spending is exactly what I want to make them know in class. but they learn more at home. Teenagers look at their parents' spending habits, and they develop the same habits. So watch your behavior(行为)!
Nikola’s advice is helpful to all parents --- "Mom and Dad, I think I should take part in financial(财务的)activities more so that I can know how to deal with money when I grow up."
Remember, your kids watch everything you do especially when it is about money, so do it right, pointing them in right direction.
( )26. What does the author advise parents to do with their kids’ allowances
A. Stop giving them allowances at once. B. Buy them something they really need.
C. Give them more if they help with housework.
D. Teach them to make money by doing part-time jobs.
( )27. The author talks about her son to .
A. show she is good at teaching her children B. tell readers how they can encourage children
C. show paying children for working really works D. tell readers she also has a trouble child
( )28. The author wants to tell us in Paragraph 3 that parents should ________.
A. have a good relationship with their children B be an example in spend and saving money
C. ask their kids for advice on spending money D take classes to learn how to deal with money
( )29. What does the underlines word “behavior” mean
A. 表达 B.表演 C.行为 D. 动作
( )30．We can learn from the passage that Nicola__________.
A. expected to learn how to deal with money B .wished his parents to mink about his future
C worried about his ability to deal with money D had a good understanding of his parents
II. 语言点精练参考答案
一、1-5BCBDC
二、6. was made 7.was introduced 8. were known 9. were invented 10. was discovered
三、11. The number of 12. It’s said that 13. encourages him to do
14. stop from making 15. not only but also
四、16-20 CABCA 21-25 DCABD
五、26-30 CCBCA
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