Einstein won the Nobel Prize in 1921 and enjoyed great fame in Germany until the rise of Nazism ____ he was expelled from Germany because he was a Jew.
A、whenA
【句意】爱因斯坦于1921年获诺贝尔奖金，在德国享有盛誉。后来随着纳粹主义的兴起，他被逐出德国，因为他是个犹太人。
【难点】关系副词when引导的定语从句修饰名词词组theriseofNazism。
When the idea of winning in sports is carried to excess, ____competition can turn into disorder and violence.
The first step in the study of any language is observing and ____ precisely what happens when native speakers speak it.
I hope you will spend as much time as you can ________ your English.
It is necessary that the students ____ more excercises to do.
汉译英：流逝，表现了南国人对时间最早的感觉。“子在川上曰，逝者如斯夫。”他们发现无论是潺潺小溪，还是浩荡大河，都一去不复返，流逝之际青年变成了老翁而绿草转眼就枯黄，很自然有错阴的紧迫感。流逝也许是缓慢的，但无论如何缓慢，对流逝的恐惧使人们必须用“流逝”这个词来时时警戒后人，必须急匆匆地行动，给这个词灌注一种紧张感。
