1、According to the first graph， it can be seen that ______________， it can also be concluded from it that ______________.
2、There is an interesting and instructive picture which goes like this： ______________.
3、Nowadays there is a growing concern over ______________. Many people like ______________， while others are inclined to ______________.
4、Nowadays， it is common to ______________. Many people like ______________ because ______________. Besides， ______________.
5、 ______________， just like many other things， are preferred by ______________. While being attacked by the idea that ______________， some people consider ______________. They point that ______________.
6、Everything has two sides and ______________ is not an exception， it has both advantages and disadvantages.
7、For years ______________ had been viewed as ______________. But people are taking a fresh look at it now.
8、It has stipulated by the government that ______________. To this stipulation， many people respond actively because ______________.
9、______________ is a common occurrence in our daily life. Whatever we do， ______________ can't be avoided.
10、______________ has become a hot topic among people， especially among the young， and heated debates are right on their way.
11、Recently， ______________ has become the focus of the society， and in this way.. People swarm to ______________.
12、______________ has been playing an increasingly important role in our day-to-day life. It has brought us a lot of benefits but created some serious problems as well.
13、Man is now facing a big problem-______________， which is becoming more and more serious. First， ______________ second， ______________.
14、Nowadays more and more people are beginning to be aware of the seriousness of ______________.
15、It is only during the last years that man has become generally aware that ______________.
16、There is an old saying， ______________. It's the experience of our forefathers， however， it is correct in many cases ever today.
17、The English proverb says， ______________. This is quite true because ______________.
18、______________ is now______________， and at the same time ______________. These two factors have caused ______________. Then what shall we do to solve ______________ in the face of such a situation.
19、One of our ancient philosophers said， ______________. Chinese people have always been holding this idea to be one of their standards of morality.
20、One of the great early writers said that ______________. If this is true， the present situation should make us ponder over ______________.