Unit 4 Lesson 20 A Computer Helps! 同步练习 2023-2024学年冀教版英语八年级下册（含答案）

Lesson 20 A Computer Helps!
【练基础】
Ⅰ.根据句意及首字母提示完成句子
1.Where did you h my schoolbag I can't find it.
2.Tom didn't e the building through the entrance.
3.How do you s for information on the Internet
4.All of us d on each other on this planet. No one can do everything by himself.
5.Can you help me find the k to my room
Ⅱ.用所给词的适当形式填空
6.The boy (hide) behind the door and no one found him.
7.As we all know, America is a (west) country.
8.Mary looked for her (key) here and there, but she just couldn't find them.
9.The Whites have decided (go) back to their country.
10.We discussed many (topic) in the meeting yesterday.
【练能力】
Ⅲ.单项选择
( )11.We should learn to look after ourselves. Don't　　　　our parents too much.
A.work on B.try on
C.depend on D.pass on
( )12.Zhaozhou Bridge is one of stone bridges in the world.
A.old B.older
C.oldest D.the oldest
( )13.Our English teacher is nice and patient she is very strict with us.
A.if B.as
C.until D.though
( )14.My mother asks me to my own clothes. She says I am already 13 years old.
A.wash B.brush
C.make D.water
( )15.Just search the Internet! You can get almost all the you need.
A.magazines B.information
C.pictures D.stories
Ⅳ.根据汉语意思完成下列句子
16.（新情境）我们经常用搜索引擎搜索需要的资料。
We often use to search for the information we need.
17.孩子们相信复活节兔子会来,并且把巧克力蛋藏起来让他们寻找。
Children that the Easter Bunny comes and chocolate eggs for them to find.
18.关于复活节,你知道些什么
What do you Easter
19.你能帮助我把这些关键句子输入到电脑里吗
Could you please help me these sentences into the computer
20.这是关于那个话题的一些信息。
This some information on that .
Ⅴ.连词成句
21.same, day, born, were, we, on, the
_____________________________________________________________________________.
22.new, life, of, symbol, a, is, green
_____________________________________________________________________________.
23.did, you, where, hide, chocolate, eggs, my
_____________________________________________________________________________
24.information, search, for, how, do, you
_____________________________________________________________________________
25.carefully, everything, do, to, me, asks, mom
_____________________________________________________________________________.
【练素养】
Ⅵ.阅读理解
We are all busy talking about and using the Internet, but how many of us know the history of the Internet
Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and puter networks didn't work well. If one computer in the network broke down, then the whole network would stop. So a new network system had to be set up. It should be good enough to be used by many different computers. If one part of the network was not working, information could still be sent through another part. In this way the computer network system would keep on working all the time.
At first the Internet was only used by the government, but in the early 1970s, universities, hospitals and banks were allowed to use it, too. However, computers were still very expensive, and the Internet was difficult to use. By the start of the 1990s, computers became cheaper, and the Internet became easier to use. Scientists had also developed software (软件) that made surfing the Internet more convenient.
( )26.When was the Internet set up
A.In the 1960s.
B.In the 1880s.
C.In the 1950s.
D.In the 1970s.
( )27.What were the computers like when the Internet was first set up
A.Big and cheap.
B.Large and expensive.
C.Small and cheap.
D.Small and expensive.
( )28.Who was able to use the Internet at first
A.The government.
B.The universities.
C.The hospitals.
D.The banks.
( )29.What does the underlined word “network” mean in this passage
A.A group of nets.
B.A large number of information.
C.Sharing information by a group of computers.
D.Surfing the Internet.
( )30.What can be the best title for this passage
A.The Internet is useful
B.The Internet was used by the government
C.The computers are expensive
D.The history of the Internet
参考答案
练基础
1.hide　2.enter　3.search　4.depend　5.key
6.hid　7.western　8.keys　9.to go　10.topics
练能力
11~15　CDDAB
16.search　engines
17.believe　hides
18.know　about
19.enter　key
20.is　topic
21.We were born on the same day
22.Green is a symbol of new life
23.Where did you hide my chocolate eggs
24.How do you search for information
25.Mom asks me to do everything carefully
练素养
26~30　ABACD
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