what引导宾语从句时在从句中作主语、宾语或表语,表示“所„„的„„”<br>1. 表示“……的东西或事情”,相当于“the thing that...; all that...; everything that....”<br>They’ve done what they can to help her.<br>他们已经做了他们能做到一切去帮助了。<br>2. 表示“……的时间”,相当于the time that:<br>After what seemed like hours he came out with a bitter smile.<br>似乎过了几个小时他才苦笑着出来。<br>The young girl was too frightened to speak, standing there for what seemed like hours.<br>小女孩吓得不敢说话,在那儿站了似乎几个小时。<br>3. 表示“„„的人”,相当于the person that„。<br>如: He is not what he was a few years ago.<br>他不是几年前的他了。<br>4. 表示“„„的地方”,相当于the place that„。<br>如: This is what they call Salt Lake City.<br>这就是他们称作盐湖城的地方。 In 1492, Columbus reached what is now called America.<br>1492年哥伦布到达了现在所称的美洲大陆。<br>5. 表示“„„的数目”,相当于the amount/number that„。<br>如: Our income is now double what it was ten years ago.<br>我们现在的收入是十年前的两倍。<br>The number of the students in our school has reached as many as 20,000, ten times what it was before liberation.<br>现在我校学生多达2万人,是解放前的十倍。
You may go, only come back early. (only =but)你可以走,但要早点回来。<br>He wants to buy the watch, only he can’t afford it.他想买这块表,但他买不起。<br>注5:however释义<br>adv.无论如何;不管怎样 However hard it may be, do your best.<br>adv.尽管如此;然而 Later, however, he decided to go.<br>adv. (表示惊奇)怎样;怎么 However did you find it?你是怎样找到它的?<br>conj.不管怎样;不管用什么方法 He can go however be like.他想怎么去都行。<br>2、whereas与while的区别<br>1.whereas = while<br>while前后句子之结构要求并列相对,whereas 在结构上则不一定不需要严格平行。(OG12-131)<br>whereas/while这种连词连接的比较成分不要求含义上绝对的平行<br>2.whereas连接的平行比较只要求对比的核心逻辑上有对称关系,不要求对称位置必须是对称名词,下面句子中主从句的主语分别是energy和nuclear power并不是对称名词,但是对比的核心都是“核能发电占总产出能量的份额”,如OG12-131:<br>Over 75 percent of the energy produced in France derives from nuclear power, whereas nuclear power accounts for just over 33 percent of the energy produced in Germany.<br>*:<br>但是如果whereas后面接介词短语,那么主句的开头也必须需要是介词短语(whereas后出现介词短语或者状语都会非常对称)如OG-113:<br>Whereas in mammals the tiny tubes that convey nutrients to bone cells are arrayed in parallel lines, in birds the tubes fo