原标题:高考真题专练|2018北京卷高考真题
动词时态
She and her family bicycle to work, _______ helps them keep fit.
A. which B. who C. as D. that
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「 手机上看不见我」
答案:A
考点:非限制性定语从句
句意:她和家人骑车去上班,这协助他们坚持健康。
解析:这是一个非限制性定语从句,空格处指代前面整个语句,所以用which引导非限制性定语从句,并且which在从句中作主语。who指人;that不引导定语从句;as一般翻译成“正如;就像”,所以此处可以扫除,故选A。
【考点常识链接】
非限制性定语从句
1. who引导的非限制性定语从句
Our guide, who was a French Canadian, was an excellent cook.
咱们的导游,一个法裔加拿大人,拿手烹调。
2. whom引导的非限制性定语从句
联络代词whom用于指人,在句中作动词宾语和介词宾语,作介词宾语时,介词可坐落句末。
Peter, whom you met in London, is now back in Paris.
彼得现在回巴黎了,你在伦敦见过他。
3. whose引导的非限制性定语从句
whose是联络代词who的所有格方式,在从句中作定语。whose一般指人,也可指动物或无生命的事物。
Above the trees are the mountains whose magnificence the river faithfully reflects on the surface.
在树林的高处是山,其绚丽的风光彻底映照在河面上。
4. which引导的非限制性定语从句
联络代词which在非限制性定语从句中所指代和润饰的可以是主句中的名词、形容词、短语、其他从句或整个主句,在从主句中作主语、动词宾语、介词宾语或表语。
①which指代主句中的名词,被指代的名词包含表明物、婴儿或动物的名词、表明奇数含义的团体名词以及表明工作、品质等的名词。
The two policemen were completely trusted, which in fact they were.
那两个差人彻底遭到信赖,事实上,也真是如此。
②which指代主句中的形容词。
She us always careless, which we should not be.
她总是粗心粗心,咱们可不应该这样。
③which指代主句中的某个从句。
He said that he had never seen her before, which was not true.
他说早年从没见过她,这不是真的。
④which指代整个主句。
In the presence of so many people he was little tense, which was understandable. 在那么多人面前他有点严重,这是可以了解的。
5. when引导的非限制性定语从句
联络副词when在非限制性定语从句中作时刻状语,指代主句中表明时刻的词语。
He will put off the picnic until May 1st, when he will be free.
他将把郊游推迟到5月1号,那时他将有空。
6. where引导的非限制性定语从句
联络副词where在非限制性定语从句中作地址状语,指代主句中表明地址的词语。
They went to London, where they lived for six months.
他们去了伦敦,在那儿呆了六个月的时刻。
7. as引导的非限制性定语从句
as引出非限制性定语从句时,替代整个主句,对其进行阐明但一般用于像as we all know, as it is know, as is know to all, as it is, as is said above, as always mentioned above, as is usual, as is often the case, as is reported in the newspaper等句式中。
as在非限制性定语从句中作主语、表语或宾语,且引出的从句方位比较灵敏,可坐落句首或句末,也可置于主句中心。一般均由逗号将其与主句离隔。as有“正如......,就像......”之意。
As it known to the United States, Mark Twain is a great American writer.
美国人都知道,马克·吐温是一位巨大的美国作家。(as在从句中作主语)
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