单选题The lesson Edwards and Clark learned then is ______ the more down-to-earth guy won.

单选题______ the amount left in my pocket is little.

单选题He studied hard at school when he was young, ______ contributed a lot to his success.

单选题Henry looked very much ______ when he was caught cheating in the biology exam.

单选题Oh, ______ I could speak several languages now! A. only if B. whether only C. if only D. only whether

单选题I find this book of great _____ in helping me get along well with others.

单选题The American and the British ______ a large number of social customs.

单选题The landlady told him to leave because he hadn’t paid his _________

单选题Louise: Would you like to go to a party this Saturday? Jackie: ______________. What kind of party?

单选题Johnny's mouth watered at the ______ of the delicious cake.A. sightB. lightC. touchD. notice

单选题He finally, ______ to find the reference book that he had been looking for. A. tried B. attempted C. ran D. managed

单选题The doctor tried to do an experiment to find out the ______ of the medicine on the mice.

单选题This is (such) a beautiful day that everyone (around) us (feel like) (going out) for a walk.

单选题Thanks, Mr．Hawkins．I am very please __________ you．

单选题The weather report ______ rain last night, but it turned out fine.

单选题Which of the following statements is true according to the passage? __________.

单选题She has been ________ twice since joining the company one year ago because of her excellent work.

单选题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 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. To prove this to yourself, look at an 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.