1. （         ）is now being questioned by more and morepeople.

（         ）正受到越来越多人的质疑。

2. Although many people claim that, along with the rapidlyeconomic development, the number of people who use （         ）are decreasing and（         ） is bound to die out. Theinformation I've collected over the recent years leads me to believe that （         ）will continue to play extremelyimportant roles in modern society.

尽管许多人认为随着经济的高速发展，用（         ）的人数会减少，（         ）可能会消亡，然而，这几年我收集的一些信息让我相信（         ）仍然会继续在现代社会发挥极其重要的作用。

3.  experts point outthat increasing（         ）not only causes serious problems such asglobal warming but also could threaten to end human life on our planet.

专家指出：持续增加的污染不仅会导致像全球变暖这样严重的问题，而且还将威胁到人类在这个星球的生存。

4. In view of such serious situation, environmental toolsof transportation like（         ）aremore important than any time before.

考虑到这些严重的状况，我们比以往任何时候更需要像（         ）这样的环保型交通工具。

5. Using（         ）contributes greatly to people's physicalfitness as well as          

使用（         ） 有助于人们的身体健康，并            。

6. Despite many obvious advantages of（         ）, it is not without its problem.

尽管       有许多明显的优点，但是它也存在它的问题。

7. （         ） is more than just an electronic appliance; itis a means of expression, as well as a vehicle for communication, and as such becomesa powerful tool for reaching other human beings.

（         ）不仅仅是一件电器；它是表达的手段和交流的载体，并因此成为联系他人的有力工具。

8. From what has been discussed above, we may safely drawthe conclusion that advantages of（         ） far outweigh its disadvantages andit will still play essential roles in modern society.

通过以上讨论，我们可以得出结论：（         ） 的优点远大于缺点，并且在现代社会它仍将发挥重要作用。

9. There is a general discussion these days over （         ） in many colleges and institutes. Oneof the questions under debate is whether （         ） is        

（         ）当前在高校和研究机构对教育存在着大量争论，其中一个问题就是（         ）是否是个     

10. This issue hascaused wide public concern.

这个问题已经引起了广泛关注。