what引导的定语从句<br>what是一个英文单词,意思是“什么”。属于高频率使用的词汇,多用于疑问句。不过如今以what命名的组织、作品等越来越多。下面小编为大家分享what引导的定语从句,欢迎大家参考借鉴。<br>一、引导主语从句<br>that与what都可引导主语从句,that在从句中不作句子成分,但不能省略。what 在从句中可作主语、宾语、表语等,不能省略。如:<br>What he said at the meeting was very important.他在会上所说的非常重要。(宾语)<br>What surprised us is that he did it alone.使我们吃惊的是他一个人做了那项工作。(主语)<br>That he did it alone surprised us.他独自完成了那项工作使我们感到吃惊。(that用来引导主语从句,在句中不作成分)<br>二、引导宾语从句<br>that与what都可引导宾语从句,that在从句中不作句子成分,一般情况下可以省略,但当有两个以上的宾语从句时,只能省掉第一个that。what 在从句中可作主语、宾语、表语等,不能省略。如:<br>They stopped to see what was happening.他们停下来看发生了什么事情。(主语)<br>The teacher got angry because of what the boy had done.那个男孩子做的事情让老师很生气。(what在宾语从句中作宾语)<br>All the people believed that it was right to rescue the temple.所有的人都认为拯救古庙是正确的。(that在宾语从句中不作句子成分且可省略)<br>We must believe that each one of us is able to do something well and that when we discover what this something is we must work hard at it until we succeed.我们必须相信,我们每一个人都能把某件事情办好;而且,当我们发现这事情是什么的`时候,我们就必须努力干下去,直到成功为止。(第一个that可省
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