24春国开电大西安广播电视大学理工英语3unit1单元自测1（预备知识：Unit 1；10分）参考答案

unit1_单元自测1（预备知识：Unit 1；10分）0

unit1_单元自测1（预备知识：Unit 1；10分）0

试卷总分:100 得分:100

1. — ?Could you give me your phone number?

— ?_______

A. It doesn't matter.

B. Sure. My phone number is 135-5674-5633.

C. It's very kind of you to do so.?

答案:

2.— If you're?short-listed for the interview, we'll ring you by Friday.

— _______

A. It doesn't matter.

B. I don't care.

C. OK，Madam.I'm looking forward to hearing from you.渝粤教育

答案:渝粤题库渝粤教育

3.?The _____ question is much more different than this one.

A. six渝粤搜题

B. sixth

C. sixteen

答案:

4.Placing a job?advertisement on an online?job board is _____.

A. sostly渝粤搜题

B. cost

C. expensively国开搜题

答案:渝粤题库

5.There are ______?of ways to make your house look greener.国开形成性考核答案

A. many

B. plenty

C. lot

答案:

6.?二、完形填空：阅读下面的短文，选择合适的内容将短文补充完整。?

T op 3 Green Home Innovations

? ? ? . There are many things you can do to reduce carbon emission and help to make the earth a better place for future generations. Here are a few suggestions.国开形成性考核答案

? ? ? Although LED lamps cost more money than standard incandescent or compact fluorescent bulbs do at the beginning, these long-lasting LED lamps will eventually be worth the money because of nergy?saved. LED lamps also produce a cleaner, more natural light.

? ? ? .“Water”is a hot topic, especially in the Southwest. Household?water filters are now available to clean and reuse water from showers and baths. Gray water reuse systems redirect the used water from washing machines to lawns or gardens.

? ? ?

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? ? ? . Building materials and embellishments like paint and carpets can?emit?chemical compounds into the atmosphere, and because a home is an enclosed space, those compounds can sometimes accumulate to dangerous levels. Installing a whole-house air purification system is one way to keep indoor air clean and circulating.

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? ? ? Going “green” doesn't have to be a challenge. A home is a long-term investment. You don't have to start over from cratch.?Make small changes. Choose environmentally friendly paint or LED bulbs.?

? ? ? Chances are that your home will need improvements eventually.Whenever possible, choose upgrades that will reduce your carbon footprint. It's good for the planet, and it's good for you.

A. In recent years indoor air pollution has got a lot of attention.

B. Air Purification

C. Water Recycling

D. In the last decade a growing number of people were interested in conserving energy and preserving the environment by living “green”

E. LED Lighting国开形成性考核答案

(1).渝粤题库

A. A

B. B国家开放大学作业答案

C. C

D. D

E. E

答案:

(2).

A. A

B. B

C. C

D. D

E. E

答案:

(3).国开搜题

A. A国家开放大学作业答案

B. B国开搜题

C. C

D. D

E. E一网一平台答案

答案:

(4).渝粤教育

A. A

B. B

C. C

D. D

E. E

答案:

(5).

A. A

B. B

C. C渝粤搜题

D. D

E. E

答案: