国开25春《理工英语2》形考任务5【参考答案】
单元自测5（预备常识：Unit 5；10分）
试卷总分:100 得分:100
一、挑选填空：阅览下面的对话或语句，从A、B、C三个选项中选出一个能填入空白处的最好选项。
1.— Would you like to see a film?
— _________
A.Yes, I’d love to.
B.Do it, please.
C.No, you like it?
2.— Excuse me, could you tell me the time?
— _________
A.You’d better buy a watch.
B.It’s three thirty by my watch.
C.Can you see the clock?
3.— I haven’t seen Bob lately. ______
— As a matter of fact, he is ill.
A.Where is he?
B.Why?
C.How is he?
4.He lost himself and flew into a ??????.?
A.sadness
B.anger
C.rage
5.It was not ???????she took off her glasses that I?realized she was a famous star.
A.when
B.until
C.since
6.二、阅览了解：阅览下面的短文，依据文章内容从A、B、C、D四个选项中选出一个最好选项。
More and more people (1) 1 to install burglar alarms in their houses if they want to get insurance. Insurance companies have been asking?people in certain areas to install the alarms before they give them insurance for the past year. This is (2) 2 to the increasing crime in some parts of the country. This can be a problem for people (3) 3 are struggling to make both ends (4) 4 . The alarms, which can be very expensive, need to be installed by an electrician. It is estimated?that 20% of homes have alarms installed, and that another 20% of people plan (5) 5 but have not installed them yet.
(1).__1__
A.must
B.have
C.had
D.has
(2).__2__
A.due
B.caused
C.because
D.because of
(3).__3__
A.which
B.what
C.who
D.—
(4).__4__
A.go
B.come
C.meet
D.loose
(5).__5__
A.?to have them installed
B.to have them installing
C.to have been installing them
D.to install them
单元自测6（预备常识：Unit 6；10分）
试卷总分:100 得分:100
一、挑选填空：阅览下面的对话或语句，从A、B、C三个选项中选出一个能填入空白处的最好选项。
1.— What are you going to do this weekend?
—?___________. If time permits, I?may go to Shanghai with my parents.
A.I don’t know?
B.?It depends
C.Don’t mention it
2.—?Excuse me. Can you spare me a few minutes?
— ________
A.What’s on?
B.What’s up?
C.What is it??
3.—????????????taking a walk after supper?
—?Good idea.
A.How about
B.Why not
C.Could we
4.? ? ? ??may act as a cause of these illnesses.?
A.?Stress
B.Relaxation
C.Happiness
5.The number you dialed does not exist. You must ???????the wrong number.
A.be remembering
B.remember
C.have remembered
6.二、阅览了解：阅览下面的短文，依据文章内容进行判别，正确为“T”，错误为“F”。
Protecting eyes from computer screens
国开理工英语2答案：https://www.open5.net/52265.html
Many of us spend the bulk of the day?looking at computer screens. Reading this article means there’s a good chance you’re looking at one right now.
But does looking at computer screens damage your eyes? Professor Nathan Efron?does not consider computer screens “harmful” to our eyes.
But he admits if you use one a lot, you increase your risk of becoming slightly more short-sighted –where your eyes focus well only on close objects while more distant objects appear blurred. This is especially the case for children and young adults, whose eyes are still developing.
In the shorter term, prolonged viewing of a computer screen can make any slight existing vision defects more noticeable. It can also give you what is sometimes known as “computer vision syndrome” – eye strain, headaches, gritty eyes and blurry vision.?But this is only temporary and can be minimized?by:?
Adjusting the screen display so the contrast is high and the brightness feels comfortable.
Having lighting that does not produce glare on the screen.
Giving your eyes regular rests from looking at the screen?(The Optometrists Association of Australia recommends you do this for five to ten minutes every one to two hours of computer use. It\’s a good time to make phone calls or do other tasks.)
?
Many of us spend much time looking at computer screens. 1
2. Looking at computer screens for long time doesn’t damage children and young adults’ eyesight.? 2
3. Computer vision syndrome?cannot be weakened.? 3
4. It’s good taking breaks during screen watching.? 4
5. Proper lighting is important to protect our eyes.? 5
(1).__1__
A.T
B.F
(2).__2__
A.T
B.F
(3).__3__
A.T
B.F
(4).__4__
A.T
B.F
(5).__5__
A.T
B.F
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