My grandma didn't go to sleep I got back home. A. where B. until C. as soon as D. while 题目和参考答案——青夏教育精英家教网—

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My grandma didn't go to sleep ______ I got back home.
A. where B. until C. as soon as D. while

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Roosegaarde, an artist and designer from Dutch has thought of a device(装置). He hopes it will make Beijing's sky clear again and help the people with masks breathe fresh air again in Beijing.

An electromagnetic field(电磁场) will pull the dirty particles in the air to the ground, and then they can be easily cleaned.

Roosegaarde says, "It's like when you have a balloon which has static electricity(静电) and your hair goes toward it. Smog happens the same way as the hair."

His workplace has reached an agreement with the Beijing government to test the technology in one of the capital's parks. Beijing's skies are regularly covered by grey smog. Serious cases of air pollution are often reported in Beijing. Roosegaarde says an indoor test has already shown it works well and he is confident of the results. With the help of a team of scientists and engineers, he is sure that the device can be worked outside.

"Beijing is a very good place to test the device because the smog in Beijing is quite low and there's not so much wind." says Roosegaarde. "We'll be able to make the air pure but the most difficult thing is to remove the smog. As a result, you can see the sun again."

Roosegaarde also reminds us that his aim is not only to give a plan to solve Beijing's dirty air pollution but also to make people pay attention to the environment problem. He adds, "This is not the real answer for smog. The real answer to do with it is clean cars, different industry and different lifestyles. " However, he hopes the project will make the citizens realize the differences between clean air and smog-filled air.

1. The device works by_______.

A helping keep the particles out with more masks

B. pulling particles to the ground with an electromagnetic field

C. absorbing hair with a balloon with static

D. creating clean air and letting it out into the sky

2. What does Roosegaarde use his device for?

A To make smog. B. To make the air clean

C. To make static electricity. D. To make Beijing's parks beautiful.

3. After reading the passage, we can know_______.

A the device doesn't work well indoors

B. the people with masks can breathe fresher air

C. Beijing government agreed to test the device

D. clean cars aren't helpful to the environment in Beijing

4. Roosegaarde hopes people in Beijing can_______.

A pay attention to air pollution and solve the problem finally

B. invent more devices to clean the smog in Beijing

C. drive modern cars and try different lifestyles

D. realize how serious the pollution they're facing is

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科目：初中英语 来源： 题型：

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My friend ,Dick has a large police dog .It’s name is Jack. Every saterday afternoon Dick takes Jack for a long walk in the park .Jack likes these walks very much.

One Saturday afternoon ,a young man came to visit my friend . He stayed a long time .He talked and talked .Soon it was time for my friend to take Jack for a walk .But the man was still there . Jack became very worried .He walked around the room several times and then sat down in front of the man and looked at him .But the man kept talking .Finally Jack could stand it no longer .He went out of the room and came back a few minutes later .He sat down again in front of the man, but this time he held the man’s hat in this mouth..