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You cannot see the doctor______you have made an appointment with him.
A．except
B．even
C．however .
D．unless
答案
更多“You cannot see the doctor______you have made an appointment with him.A．exceptB．evenC．howev”相关的问题
第1题
B、moral, belief and value
C、attitude and relationships
D、food and music
第2题
People who are near-sighted can only see things that are very close to their eyes.' Everything else is not so clear. Many people who do a lot of close work, such as writing, reading and sewing, become near sighted. Then they have to wear glasses in order to see distant (远处的) things clearly.
People who are far-sighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them."
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle (角度). To prove this to yourself, look at an object out of one eye; then look at the same object out of the other eye. You will find the object's relation to the background (背景) and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.
We should take good care of our eyes ______.
A．only when we cannot see perfectly
B．only when we can see well
C．even if we can see well
D．only when we realize how important our eyes are
第3题
When we see well, we do not think about our eyes very often. (79) It is only when we cannot see perfectly that we realize how important our eyes are.
People who are nearsighted can only see things that are very close to their eyes. Everything else seems blurry (模糊的). Many people who do a lot of close work, such as writing, reading and sewing, become nearsighted. Then they have to wear glasses in order to see distant objects clearly.
People who are farsighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people olden became blind. Now, however, it is possible to operate on the cataracts and remove them.
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle. To prove this to yourself, look at object out of one eye; then look at the same object out of your other eye. You will find the object's relation to the background and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.
We should take good care of our eyes ______.
A．only when we can see well
B．only when we cannot see perfectly
C．even if we can see dell
D．only when we realize how important our eyes are
第4题
阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。
Imagine this situationA、you have bought a faulty item from a shop and you take {A. themB、B. itB、C. him} back to complain. You go directly to the shop assistant and tell them your problem. They say they cannot help you, {A. whichB、B. itB、C. that}makes you angrier, to the point perhaps where you start insulting the poor shop assistant. RESULTA、This will do you no {A. commentsB、B. interestsB、C. favours}, like getting any compensation, or even a refund. If you go directly to the first person you see within the organization you are complaining about, you may be wasting your time {A. asB、B. ifB、C. when} they may be powerless to take any action or provide you {A. toB、B. withB、C. for} a solution. So the important lesson to be learnt is to make sure firstly that you are speaking to the relevant person, the one who has the authority to make decisions.
第5题
A.nearly nine kilometres deep
B.almost eleven kilometres high
C.two kilometres above the highest mountain in the world
D.two kilometres deeper than the height of the world's highest mountain
第6题
(79)When students first go to a library, they may be at a loss as to what to read of all the different subjects. Well, Bacon tells you to "look at weak places in your armor(盔甲)", and shows you how to fill up the blanks in your knowledge. On the other hand, it is no good just trying to fill your mind with knowledge. Knowledge in itself is often useless. A mind filled with too much knowledge is like a room too full of furniture; a man cannot walk about freely in it, and look out the windows. It is much better to concentrate on a few subjects which interest you and to deal lightly with the others than to march heavily through the whole range(范围) of learning, like a silly tourist going through a museum and not missing a single object. (80) If you try to master every subject, you may become very wise, but you will be very lonely and you will probably lose all your friends. So you must learn to pick and choose, and you must also learn to look here and there in a library like a camel eating grass on the grassland. If you watch it eating, you will see that although he is supposed to be one of the most stupid animals in the world, he has at least one of the qualities(品质) of the cultured(有修养的) man, the power to pick and choose. A student looking for mental food in a library should take the camel as his model.
The writer thinks that one must ______
A．read as many books as he can
B．try to read books on all the different subjects
C．only read books on subjects that interest him
D．read and absorb a lot
第7题
A.remember
B.remembering
C.recall
D.recalling
第8题
Then consider this, you might be in a state of subhealth(亚健康).
Subhealth, also called the third state or grey state, is explained as a border line(临界)state between health and disease. According to an investigation by the National Health Organization, over 45 percent of subhealthy people are middle aged or elderly. The percentage is even higher among people who work in management positions as well as students around exam time.
Symptoms(症状)include a lack of energy, depression, slow reactions, insomnia(失眠), agitation(焦虑)and poor memory. Other symptoms include shortness of breath, sweating and aching in the waist and legs.
The key to preventing and recovering from subhealth, according to some medical experts, is to form. good living habits, alternate work with rest, exercise regularly, and take part in open-air activities.
As for meals, people are advised to eat less salt and sugar. They should also eat more fresh vegetables, fruits, fish, because they are rich in nutritional(营养的)elements--vitamins, and trace elements(微量元素)--that are important to the body.
Nutrition experts point out that it is not good to eat too much at one meal because it may cause unhealthy changes in the digestive tract(消化道). They also say that a balanced diet is very helpful in avoiding subhealth.
According to this passage, which of the following is right？
A．When you are in a state of subhealth, you shoud go to see a doctor and buy some medicine.
B．When you are in a state of subhealth, you should stay home and keep silent.
C．When you are in a state of subhealth, you should find out the reasons and relax yourself
D．When you are in a state of subhealth, you shoud have yourself examined in foreign countries.
第9题
We cannot see any possibility of business ____ your price is too high.
A．since
B．while
C．though
D．that
第10题
A．glowing
B．brilliant
C．sensitive
D．gloomy
