国家开放大学2022年春《理工英语3》单元自测1

试卷总分:100  得分:100

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

— _______

A.I don't care.

B.It doesn't matter.

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

答案:

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

— ______

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

B.It doesn't matter.

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

答案:

3.You don't have to start over from ______.

A.scratch

B.head

C.again

答案:

4.Hold on a minute, please. I'll put you?_____.

A.on

B.in

C.through

答案:

5.What matters is how your house looks and how it_____you and others residing in it.

A.affects

B.effects

C.infects

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。?

 Top 3 Green Home Innovations

1    .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.

2    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.

3    .“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.

4   

5    . 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.

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

(1).__1__

A.A

B.B

C.C

D.D

E.E

答案:

(2).__2__

A.A

B.B

C.C

D.D

E.E

答案:

(3).__3__

A.A

B.B

C.C

D.D

E.E

答案:

(4).__4__

A.A

B.B

C.C

D.D

E.E

答案:

(5).__5__

A.A

B.B

C.C

D.D

E.E

答案: