Unit 6When was it invented单元练习 2021—2022学年人教新目标九年级英语全册

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Unit 6　When was it invented

Ⅰ.单项填空(共 10 小题;每小题 2 分,满分 20 分)

(　　)1.When my sister was at the train station, her bag 　　　　.%

A.stole B.was stealing C.was stolen D.will be stolen

(　　)2.—Sorry, Jean, I took your camera 　　　　.%

—It doesn’t matter. Be careful next time.

A.by accident B.by the way C.by mistake D.by hand

( 　　 )3.When I got to the door of the kitchen, I knew the fish must be

delicious, because it 　　　　very nice.%

A.tasted B.smelled C.felt D.sounded

(　　)4.—Why did you buy so many clothes in that store?

—Because the price of all the clothes there is very 　　　　.%

A.expensive B.cheap C.high D.low

( 　　 )5.You can’t eat the bread, because it has gone bad and it smells

A.salty B.sour C.sweet D.nice

(　　)6.—Lucy is often heard 　　　　in her room.%

—Yeah, she was born with musical talent.

A.sing B.sings C.sang D.to sing

(　　)7.Not only his friends but also he 　　　　always interested in science

fiction.%

A.show B.shows C.are D.is

( 　　 )8.—Thank you very much for giving me some advice on how to deal with

stress.

—　　　　.%

A.That’s true B.Don’t mention it

C.OK. I’ll try D.I don’t think so

(　　)9.—Have you finished your report on green life?

—Not yet. I’ll make it if I 　　　　another two days.%

A.give B.am given C.will give D.will be given

(　　)10.He is such an excellent swimmer that we all 　　　　him.%

A.take after B.look up to C.think of D.come up with

Ⅱ.完形填空(共 10 小题;每小题 2 分,满分 20 分)

　　 He has millions of students from all over the world.They listen to his

classes online.They　 11 　 see his face on the screen.Salman Khan, 42, from the

US, is the founder (创始人) of the learning website Khan Academy.%

Unlike other online courses that film teachers 　 12 　 classes, Khan’s

videos only use his voice and a digital blackboard for writing.He says he

doesn’t want a human face to distract (使分心) students.Khan also makes his

classes 　 13 　 10 to 15 minutes so that students won’t lose interest.They can

also get scores from taking classes.%

The courses are translated into more than 36 different languages 　 14

Chinese.About 80 teachers from the world’s top universities are now also

teaching on the website.But all this started nine years ago with just one man—

Khan.These kinds of special courses make Khan Academy one of the world’s 　 15

online education websites.%

In 2006, Khan made homemade videos to help his 　 16 　 grade cousin with

math.He posted the videos online and got thousands of views.This encouraged him

to make more videos and create his own website Khan Academy.%

Khan understands that many kids, especially those in developing countries,

cannot get a good education.He has three degrees from universities.He wants to

use his 　 17 　 to help more people.Thus, his courses are all offered for

free.“Our task is to 　 18 　 a free, world-class education for anyone,

anywhere,” he said.%

Khan’s website has　 19 　 become very popular worldwide but won a lot of

respect( 尊重 ).Even Bill Gates, the founder of Microsoft, is one of his

fans.Gates 　 20 　 over $1.5 million to support Khan and named him “the teacher

to the world”.%

(　　)11.A.always B.usually C.never D.sometimes

(　　)12.A.to give B.giving C.give D.gave

(　　)13.A.as far as B.as much as C.as short as D.as soon as

(　　)14.A.including B.with C.as D.beside

(　　)15.A.least popular B.more popular C.popular D.most popular

(　　)16.A.nine B.nineth C.ninth D.the ninth

(　　)17.A.knowledge B.fame C.courage D.value

(　　)18.A.give B.offer C.provide D.pay

(　　)19.A.ever B.already C.not D.not only

(　　)20.A.gave out B.gave off C.gave up D.gave away

Ⅲ.阅读理解(共 5 小题;每小题 3 分,满分 15 分)

　　Artificial intelligence(人工智能), or AI in short, is the science of giving

computers and machines ability to think and work like humans.AI scientists and

engineers have made a lot of cool technologies.AI is rapidly catching up with

the human ability to read faces.As a result, facial recognition(识别) is used a

lot in the world.Chinese police use this technology to check people’s

information.

AI is also used in self-driving cars, which are believed to be the future

of driving.Most drivers may wave or nod at passers-by to let them cross the

street, but self-driving cars don’t have this ability.Car makers are testing a

light signal system(系统)to help them “speak” to humans.The system can show

what self-driving cars will do.

Service robots also show you how powerful AI is.Imagine this—you come back

home from school and your robot housekeeper is waiting for you at the

door.After dinner, he teaches you to play the piano, just like a real music

teacher.Such thoughts will soon happen in the real world.In the future, more

and more service robots will become good home helpers.

AI is so powerful that it can help human beings and even take the place of

us in many jobs.

( 　　 )21.AI is the science of giving computers and machines ability to

like humans.%

A.think and work B.run and do C.make and decide D.play and drive

(　　)22.According to the passage, facial recognition is used for 　　　　.%

A.driving cars B.making people smile

C.calling the police D.checking people’s information

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Unit 6When was it invented单元练习 2021—2022学年人教新目标九年级英语全册

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