21. 考慮到問(wèn)題的嚴(yán)重性，在事態(tài)進(jìn)一步惡化之前，必須采取有效的措施。

　　In view of the seriousness of this problem, effective measures should be taken before things get worse.

　　22. 在過(guò)去的幾十年，先進(jìn)的醫(yī)療技術(shù)已經(jīng)使得人們比過(guò)去活的時(shí)間更長(zhǎng)成為可能。

　　In the last decades, advances in medical technology have made it possible for people to live longer than in the past.

　　23. 我們應(yīng)該不遺余力地美化我們的環(huán)境。

　　We should spare no effort to beautify our environment.

　　24. 人們相信擁有計(jì)算機(jī)技術(shù)可以獲得更多工作或提升的機(jī)會(huì)。

　　People believe that computer skills will enhance their job opportunities or promotion opportunities.

　　25. 我同意后者，有如下理由：

　　For my part, I agree with the latter opinion for the following reasons:

　　26. 在給出我的觀點(diǎn)之前，我想看看雙方的觀點(diǎn)是重要的。

　　Before giving my opinion, I think it is important to look at the arguments on both sides.

　　27. 這一觀點(diǎn)正受到越來(lái)越多人的質(zhì)疑。

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

　　28. 環(huán)境學(xué)家指出：持續(xù)增加的污染不僅會(huì)導(dǎo)致像全球變暖這樣嚴(yán)重的問(wèn)題，而且還將威脅到人類(lèi)在這個(gè)星球的生存。

　　Environmental experts point out that increasing pollution not only causes serious problems such as global warming but also could threaten to end human life on our planet.

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

　　In view of such serious situation, environmental tools of transportation like bicycle are more important than any time before.

　　30 盡管自行車(chē)有許多明顯的優(yōu)點(diǎn)，但是它也存在它的問(wèn)題。

　　Despite many obvious advantages of bicycle, it is not without its problem.

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