段首句

　　1. ________ is known as one of the most serious problems in todays society. We can see it almost everywhere. As the graph depicts, ________.

　　2. From the cartoon, we can see that. Its a forceful satire on the kind of ________.

　　3. From the first graph, we learn that ________. According to the statistics shown in the second graph, we can see that ________.

　　4. This table shown us that ________. The figures indicate that there is an inspiring tendency of ________.

　　5. What you first think of when seeing this cartoon might be that ________. As a matter of fact, this cartoon reveals a typical social phenomenon.

　　6. According to the first graph, it can be seen that ________, it can also be concluded from it that ________.

　　7. There is an interesting and instructive picture which goes like this: ________.