We should do whatever we can __________ them.

      A. help                           B. helping                       C. helped                    D. to help

Trees are good for human being. We can’t plant them __________ many.

                                                                                               Dec. 24, 1848

Dear Johnston,

       Your request for eighty dollars, I do not think it best to satisfy now. At the various times when I have helped you a little, you have said to me, “We can get along very well again,” but in a very short time I find you in the same difficulty again. Now this can only happen by some fault in your behavior. What that fault is, I think I know. You are not lazy, and still you are an idler(游手好闲). I doubt whether since I saw you, you have done a good whole day’s work, in any other day. You do not very much dislike to work, and still you do not work much, merely because it does not seem to you that you could get much for it.

This habit of uselessly wasting time is the whole difficulty; it is vastly important to you, and still more so to your children, that you should break this habit. It is more important to them, because they have longer to live, and can keep out of an idle habit before they are in it, easier than they can get out after they are in.

You are now in need of some ready money; and what I suggest is, that you shall go to work hard, for somebody who will give you money for it.

Let father and your boys take charge of your things at home-prepare for a crop, and make the crop, and you go to work for the best money wages, or to pay back any debt you owe. And to secure you a fair reward for your labor, I now promise you that for every dollar you will, between this and the first of May, get for your own labor, I will then give you one other dollar. By this, if you hire yourself at ten dollars a month, from me you will get ten more, making twenty dollars a month for your work.

Now if you will do this, you will soon be out of debt, and what is better, you will have a habit that will keep you from getting in debt again. But if I should now clear you out, next year you will be just as deep in as ever. You say you would almost give your place in Heaven for $ 70 or $80. Then you value your place in Heaven cheaply, for I am sure you can with the offer I make you get the seventy or eighty dollars for four or five months’ work. You say if I furnish you the money you will deed(抵押) me the land, and if you don’t pay the money back, you will deliver possession-Nonsense! If you can’t now live with the land, how will you then live without it? You have always been kind to me, and I do not now mean to be unkind to you. On the contrary, if you will but follow my advice, you will find it worth more than eight time eighty dollars to you.

               Affectionately

  Your brother

   A. Lincoln

Abraham Lincoln wrote the letter to Johnston mainly to ________.

A. show his concern for him                 B. recommend him to save money

C. decline his request and motivate him              D. introduce him a new job

What’s the problem with Johnston, according to Lincoln?

A. He was very lazy.                                 B. He wasted time a lot.

C. He couldn’t get much from work.           D. He disliked working.

In the letter Lincoln suggested that Johnston should ________.

A. keep himself from getting into trouble    B. go to work hard for somebody

C. manage well the things at home             D. keep the children out of the idle habit

If Johnston got one dollar for his work, Lincoln promised to _________.

A. reward him with labor                           B. pay off his debt

C. hire him at 10 dollars a month                      D. give him another dollar

In order to get 80 dollars from Lincoln, Johnston promised to ________.

A. take away his place in Heaven                B. deed Lincoln the land

C. live without the land                                    D. do good work every day 

George Spilich at Washington College in Chestertown, Maryland, decided to find out whether, as many smokers say, smoking helps them to “think and fix their attention on (集中精力于)their work”. Spilich put young non－smokers, active smokers and smokers deprived(被剥夺)of cigarettes through a series of tests.

In the first test, each subject sat before a computer screen and pressed a key as soon as he or she recognized a certain letter among a grouping of 96. In this simple test, smokers, deprived smokers and non－smokers performed equally well. The next test was more difficult, requiring all to scan(扫描) groups of 20 letters and find the one of the letters changed into a different one. Non－smokers were faster, but under the stimulation(刺激)of nicotine, active smokers were faster than deprived smokers. In the third test of short－term memory, non－smokers made the fewest mistakes, but deprived smokers made fewer mistakes than active smokers. The fourth test required people to read a passage, then answer questions about it. Non－smokers remembered 19 percent more of the most important information than active smokers, and deprived smokers did better than those who had smoked a cigarette just before testing. Active smokers were likely not only to have poorer memories but also had trouble separating important information from unimportant details.

“As our tests became more difficult，” says Spilich, “non－smokers performed better than smokers by far.” he says, “Smokers might perform adequately(准确)at many jobs until they got very difficult. A smoking airline pilot could fly adequately if no problems arose, but if something went wrong, smoking might damage his mental capacity(思维能力)．”

1. Smokers usually think that smoking ________.

A. helps them to be less nervous

B. helps them to do better work

C. helps them to think and act quickly

D. does some good to their health

2. George Spilich's experiment was organized in such a way as to ________.

A. force the subjects to separate major information from minor details

B. check the effectiveness of nicotine on smokers

C. put the subjects through increasing difficult test

D. make a written and formal record of the answers of the subjects

3. Which fact does this passage lead us to believe?

A. Active smokers generally performed better than deprived smokers.

B. Active smokers answered more quickly than the other subjects.

C. Deprived smokers gave the slowest answers to the various tasks.

D. Non－smokers were not better than other subjects in performing simple tasks.

4. We can infer from the last paragraph that ________.

A. smokers should not expect to become airline pilots

B. smokers may prove unequal to dealing with emergency (紧急) cases

C. no airline pilots smoke during flights

D. smoking in emergency cases causes mental illness