我们在进行四六级考试的时候，面对试卷的第一个题目就是作文题目了。很多人对于作文的题目都是不知该如何下手，不知道第一句话该写什么，不知道前后该怎么联系起来。其实，想要解决这些问题是很简单的，我们只需要在考前背诵一些实用的作文句子，在考试的时候直接用上就好了。下面就是小编为大家总结的一些句子，我们自己背下来。

1. It must be pointed out that it is one of our basic State policies to control population growth while raising the quality of the population。

2. It is (has been) estimated that the world's population could reach 6 billion by the end of the century。

3. It must be kept in mind that there is no secret of success but hard work。

4. It can be seen from this that there is no difficulty in the world we can overcome. 5. As is known man is the product of labour。

6. It is a common saying that man who has a settled purpose will surely succeed。

7. It is clear that the enemy has no desire for peace。

8. It is hard to imagine how Edison managed to work twenty hours each day。

9. It's hard to say whether the plan is practicable。

10. There is no doubt that you will be helped by others if you have any difficulties.

11. It seems certain that they have made a series of experiments。

12. It is said that bats have been using radar for millions of years。

13. To tell the truth , many mistakes we made could have been avoided。

14. As we know, it was not until recently that the problem was solved。

15. It must be admitted that you haven't done what you promised to do。

16. In my opinion, this computer is different from that one you saw。

17. It is certain that we have a long way to go。

18. All this shows that nothing can prevent us from reaching our aims。

19. As far as we know, it took him more than a year to write the book。

20. It has been proved that every substance, no matter what it is, is made up of atoms.

上面这些句子在考试的时候我们都是可以拿来直接应用的，希望大家能够在考前花一些时间多多的背诵几句，然后这样就能避免在考试的时候出现无话可说的情况了。