奥鹏作业网国开（北京开放大学）25春《开放英语3》unit12【标准答案】
unit12
试卷总分:100 得分:100
词汇 （每题2分，共20分）
阅读下面的句子，从A、B、C三个选项中勾选一个能填入空白处的最佳选项。
1.I have to __ all the mess in this room.
A.tidy up
B.clear up
C.clean up
2.We’ve offered her the job, but I don’t know whether she’ll __ it.
A.receive
B.accept
C.get
3.He always has a lot of business work __.
A.on the move
B.off the go
C.on the go
4.The Germans, as __, are often thought to be well organized.
A.a nation
B.a country
C.people
5.He is __ a new job.
A.examining
B.seeking
C.searching
6.I spent most of my money in the first week __ had very little to eat by the end of the holiday.
A.and consequently
B.and however
C.and so
7.You can see the user ___ of our website are up this month.
A.figures
B.numbers
C.figure
8.This medicine will __ you a good night’s sleep.
A.sure
B.make sure
C.ensure
9.The dog __ a hole in my trousers yesterday.
A.bit
B.bitter
C.bite
10.The land __ sharply away from the house.
A.declines
B.decreases
C.reduces
语法和结构 （每题2分，共20分）
阅读下面的句子，从A、B、C三个选项中勾选一个能填入空白处的最佳选项。
11.—Can I get you a couple of tea
—_________________________.
A.That’s very nice of you
B.With pleasure
C.You can, please
12.________________ every day for 20 minutes.
A.Exercise
B.To exercise
C.Should exercise
13.I think all these are main points _______ much attention.
A.being worthy of
B.worthy of
C.which worth
14.The roof needs _______.
A.to repair
B.repairing
C.repair
15.What a fool I have been! Why _____I think of that before
A.don’t
B.didn’t
C.not
16.You must explain ______how they succeeded ________ the experiment.
A.for us, to
B.at us, at
C.to us, in
17.If I ______ time, I ________ something better.
A.had… would make
B.have…will make
C.had… will make
18.That place is _____________ the south of the city.
A.at
B.in
C.on
19.Jenny ___________ on her homework after supper.
A.did
B.has been doing
C.has done
20.I have lived here _______ 1997.
A.for
B.since
C.at
完形填空 （每题2分， 共20分）
阅读下面的短文，从短文后所给的A、B、C三个选项中选出最佳答案，并将选项字母填入相应空白处。
21. A study has shown that fitness is the key (1) ____ long life, irrespective of body shape (2) ____ even smoking habits. Researchers discovered that people who exercise live longer than (3) ____ , even if they are overweight and smoke. The study found that (4) ____ fit of the 6,000 middle-aged men in the study were five times more likely to die within six years of the start of the research than the fittest. This was true (5) ____ the men had heart problems, smoked or were overweight. Scientists concluded that it was better (6) ____ and active than skinny and sedentary. Dr Ken cooper, a fitness expert, said, “ You are better off smoking a packet of cigarettes a day and exercising regularly than (7) ____ a non –smoker and sedentary.” Although he adds, “But don’t misunderstand me. I am not endorsing (8) ____ , I am trying to tell you how dangerous it is to be sedentary.” The British Government is putting pressure (9) ____ manufacturers to reduce high levels of sugar in food and to restrict the hard-sell of junk food to children in order to improve the nation’s health. But the new study suggests the Government should encourage more people (10) ____ . 1. A. for B. of C. to 2. A. or B. and C. but 3. A. those who does not B. these who do not C. those who do not 4. A. the little B. the least C. least 5. A. if or not B. whether or not C. when 6. A. being fat B. to be fat C. to do 7. A. being B. be C. to be 8. A. smoked B. to smoke C. smoking 9. A. on B. for C. to 10. A. exercise B. exercising C. to exercise
北京开放大学开放英语3答案：https://www.opzy.net/88353.html
阅读理解（每题2分， 共20分）
阅读下列短文并完成后面的阅读练习。从每题的A、B、C三个选项中选出一个正确答案，并将选项字母填入相应空白处。
22. Although international travel is usually an exciting and pleasant experience, travellers should take steps to ensure that their health does not suffer either from their time in the air or from their time abroad. Before you go Check with your doctor or local travel clinic which injections are necessary for the areas you are travelling to. Allow sufficient time to have these injections before you leave because they may take time to become effective. Be sure that the information on health is up-to-date. Check on the Internet if you are not sure. Don’t go to bed late the day before you fly. During the flight Jet Lag Your body has a natural daily sleep pattern. It takes time to adjust to a new time zone. There are many different effects of jet lag: you may not be able to sleep, you may not want to eat or you may feel sick and tired. You may not be able to concentrate for some days after you arrive. There are several things you can do to lessen the effects of jet lag: － Do your best to relax during the flight; － Sleep as much as you can on the flight. Use a mild sleeping pill if necessary; － Drink as much water as you can; － Don’t drink alcohol and caffeine; － Take mild sleeping pills for the first few days in the new time zone if you need them. 2. Deep Vein Thrombosis (DVT) If you sit still for long periods of time, you will probably get swollen ankles and muscle cramps – these are painful but not dangerous. However, the much more serious DVT may also occur occasionally after long periods of inactivity — __________(1). This is not only true for air travel — it is the same for travellers by bus or train who spend many hours sitting in cramped conditions. To minimise the risk of DVT during the flight: - Stretch your legs and arms often while sitting in your seat; -_______________(2). Most importantly, if you have any worries about your health during the flight, call a flight attendant and tell them immediately how you feel. They will be able to help you. 1．What does the word “sufficient” mean in line 2 in Para. 2 A．enough B．some C．efficient 2．“Jet Lag” means __________. A．a natural daily sleep pattern B．the tired feeling you have when flying across the places where time is different C．a kind of acute disease (急性病) D．the difficulty in adjusting to a new time zone 3．Which of the following might be best filled in blank (1) A．especially during the travel. B．it’s less dangerous although it can be painful. C．it’s dangerous and it can be painful. 4．Which of the following might be the best answer to be put in blank (2) A．To take some sleeping pills so that you can fall asleep. B．To get up and walk around the cabin when you can. C．To keep your feet still for an hour. 5．What’s the purpose of this piece of writing A．To persuade people to take a long journey. B．To explain what are jet lag and DVT. C．To offer the tips about international travel. 提示：请将正确答案的序号（大写字母ABC）填写在空白处，系统自动判分 您的答案是：1.____ 2.____ 3.____ 4.____ 5.____
23.PAT the Dog Did you know there are some very special dogs doing good work in our hospital wards These are PAT (Pets As Therapy) dogs. Doctors and nurses are recognising the benefits of pets more and more — particularly for children, people with mental illnesses and elderly people who are separated from their own pets or have had to give up their pets. Stroking and playing with a pet is a calming experience and something to look forward to. One hospital reported that a man with a mental illness, who hadn’t spoken for years, first stroked and played with a visiting dog and then started talking to it. Today, around 4,500 dogs and 50 cats and their volunteer owners are at work in the UK bringing comfort and pleasure to over 100,000 people in hospital. There are many other ‘working dogs’. There are guard dogs, police dogs, hunting dogs and dogs for the blind. Disabled people benefit greatly. Take the case of Alan Smythe, who has to visit hospital every month. Some things are difficult for him because he is in a wheelchair. But his life has altered dramatically since he got a dog, Tess, from the charity ‘Dogs for the Disabled’. ‘She helps me to get dressed, and she brings me my socks and shoes. She fetches the newspaper from the shop, and she passes me the phone when it rings. I feel so much better too. It’s like having a really good friend. She comes with me to hospital. Once, she saved my life. I am a diabetic and one day my blood sugar level dropped, and when I was going into a coma she went next door and she alerted my neighbour. He gave me an insulin injection. 1．Which of the following statement is TRUE according to the passage A．All the dogs are allowed into the hospitals to visit the patients. B．Only some special dogs can help the patients feel better. C．Doctors and nurses doubt if pets can bring comfort to the patients. 2．Pets are particularly beneficial to the following EXCEPT _________. A．children B．people with mental illness C．the elderly people who live alone 3．The first sentence of Para. 2 suggests _________. A．pets can make people become quiet and attentive B．people feel uncomfortable when they touch and play with a pet C．people feel relaxed and hopeful when they touch and play with a pet 4．The dog helps Alan do the following EXCEPT _________. A．She helps her get dressed B．She picks up the phone for her C．She gets the newspaper for her 5．The sentence “when I was going to a comma …” means that __________. A．when I got hungry… B．when I fell down on the floor… C．when I became unconscious… 提示：请将正确答案的序号（大写字母ABC）填写在空白处，系统自动判分 您的答案是：____ 2.____ 3.____ 4.____ 5.____
Directions: For this part, you are allowed thirty minutes to write a passage. You should write at least 80 words and could base your writing by using the hints given below.利用所给提示，完成一篇不少于80字的短文写作。
24.利用所给提示写一篇短文，说明如何保持身体健康。
提示：
it is necessary to keep a balanced diet
had better
it is important to do regular exercises
it is essential to keep high mood
renew our spirits and release our stress.
be bound to keep healthy
作文题目：How to Keep Healthy
