2021年国家开放大学理工英语(3)单元自测1-8答案(3)

C. cancel
 
We must put _____ into practice.
A. that have we learned
B. that we have learned
C. what we have learned 正确
 
—  What do you think of the song?
 
—                      
A. I don't know the title.
B. I like music very much.
C. It sounds sweet. 正确
 
—  How often do you go dancing?
 
—                   
A. Yesterday.
B. Every other day. 正确
C. I will go dancing tomorrow.
 
It's no use _____________ here, let's go home.
A. to wait
B. waiting 正确
C. wait
 
He's the best _____________ I've come across this season, a great player.
 
选择一项：
A. player
B. opponent 正确
C. sportsman
 
I prefer __________ to __________.
A. to drive……be driven
B. driving……being driven 正确
C. to drive……rather than being driven
 
 I really appreciate __________ to help me, but I am sure that I will be able to manage by myself.
A. you to offer
B. your offering 正确
C. that you offer
 
There are many ways _____________ the problem.
A. solving
B. to solve 正确
C. Solve
 
—  Could you help me with this crossword puzzle, please?
 
—                      
A. No, no way.
B. Sorry I can't. It's too difficult for me. 正确
C. No,I can't.
 
We have fully _____________ smoke alarms on all staircases.
A. functional 正确
B. functionally
C. function
 
She _____________ close contacts with the scientist for many years.  
A. stayed
B. maintained 正确
C. claimed
 
 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
 
      回答不正确
.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.
 
      回答正确
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.
 
      回答正确
.“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.
 
      回答不正确
 
      回答不正确
. 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
 
 
二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确写“T”错误写“F”。
 
Five Tips to Make Your House Look Greener
      There are plenty of ways to make your house look greener. It doesn't matter how many people reside in your home. It doesn't even matter what is the size of your home. What matters is how your house looks and how it affects you and others residing in it.