31. This view is now being questioned by more and more people.

　　這一觀點正受到越來越多人的質疑。

　　32. Although many people claim that, along with the rapid economic development, the number of people who use bicycles is decreasing and bicycles are bound to be replaced. The information I've collected over the recent years leads me to believe that bicycles will continue to play an extremely important role in the modern society.

　　盡管許多人認為隨著經濟的高速發(fā)展，用自行車的人數(shù)會減少，自行車可能會消亡， 然而，這幾年我收集的一些信息讓我相信自行車仍然會繼續(xù)在現(xiàn)代社會發(fā)揮極其重要的作用。

　　33. Environmental experts point out that the increasing pollution not only causes serious problems such as global warming but threatens our existence on the planet.

　　環(huán)境學家指出：持續(xù)增加的污染不僅會導致像全球變暖這樣嚴重的問題，而且還將威脅到人類在這個星球的生存。

　　34. In view of such serious situation, environment-friendly tools of transportation like bicycles are more important than at any time in our history.

　　考慮到這些嚴重的狀況，我們比以往任何時候更需要像自行車這樣的環(huán)保型交通工具。

　　35. Using bicycles contributes greatly to people's physical fitness as well as easing traffic jams.

　　使用自行車有助于人們的身體健康，并極大地緩解了交通阻塞。

　　36. Despite many obvious advantages of the bicycle, it is not without its problems.

　　盡管自行車有許多明顯的優(yōu)點，但是它也存在它的問題。

　　37. Bicycles can't be compared with other means of transportation like cars and trains for speed and comfort.

　　在速度和舒適度方面，自行車是無法和汽車、火車這樣的交通工具相比的。

　　38. From what has been discussed above, we may safely draw the conclusion that advantages of bicycles far outweigh their disadvantages and they will still play essential roles in the modern society.

　　通過以上討論，我們可以得出結論：自行車的優(yōu)點遠大于缺點，并且在現(xiàn)代社會它仍將發(fā)揮重要作用。

　　39. There is a general discussion these days over education in many colleges and institutes. One of the questions under debate is whether education is a lifelong study.

　　當前在高校和研究機構對教育存在著大量爭論，其中一個問題就是教育是否是個終身學習的過程。

　　40. This issue has caused a wide public concern.

　　這個問題已經引起了廣泛關注。