1.Too much work and too little rest may lead to loss of health
2.If you try to learn too many things at a time，you may get confused.
3.We have made numerous attempts to solve the problems，but so far our efforts have been unsuccessful.
4.State financial support given in the form of scholarships has stimulated the students to greater efforts.
5.The pressures of modern urban life have led to increased occurrences of alcoholism and drug abuse，mental illness，suicide，and divorce in our society
1.Jobs and work do much than most of us realize to provide happiness and contentment
2.We are much less conscious of the extent to which work provides the more crucial psychogical well-being that can make the difference between a full and empty life.
3.Work is more than a necessity for most human beings;it is the focus of their lives，the source of their identity and creativity.
4.Rather than a punishment or a burden，work is the opportunity to realize one’s potential.
5.Many Americans choose to travel by car rather than by any other means of transportation.
1.We hold these truths to be self-evident that all men are created equal
2.A considerable amount of research shows that people tend to become bored when faced with a situation in which they must do the same thing day in and day out
3.We are positive that our country’s entry into WTO will benefit the development of national economy
4.we have to learn to cooperate with others and many of our own ideas have to be brushed aside for the good of the whole.
5.we have to come to the conclusion，based on the above-mentioned examples，that there is something in saying that well begun，half done.
工作还得一张一弛呢，老让读者读长句，累死人!写一个短小精辟的句子，相反，却可以起到画龙点睛的作用。而且如果我们把短句放在段首或者段末，也可以揭示主题：As a creature, I eat; as a man, I read. Although one action is to meet the primary need of my body and the other is to satisfy the intellectual need of mind, they are in a way quite similar. 如此可见，长短句结合，抑扬顿挫，岂不爽哉?牢记!
特别提示：隐藏主体句可是要冒险的!To begin with, you must work hard at your lessons and be fully prepared before the exam(主题句). Without sufficient preparation, you can hardly expect to answer all the questions correctly。
三、 一 二 三原则。
1)first, second, third, last(不推荐，原因：俗)
2)firstly, secondly, thirdly, finally(不推荐，原因：俗)
3)the first, the second, the third, the last(不推荐，原因：俗)
4)in the first place, in the second place, in the third place, lastly(不推荐，原因：俗)
5)to begin with, then, furthermore, finally(强烈推荐)
6)to start with, next, in addition, finally(强烈推荐)
7)first and foremost, besides, last but not least(强烈推荐)
8)most important of all, moreover, finally
9)on the one hand, on the other hand(适用于两点的情况)
10)for one thing, for another thing(适用于两点的情况)