几道语法题帮忙解析下,有急用,要考试,谢谢

来源:百度知道 编辑:UC知道 时间:2024/05/12 15:37:11
1.The stethoscope transmits and amplifies sounds from localized areas of the body, thus making them -------to hear and identify
A. easier than
B. as easy as
C. easies so that
D. easier
2.The production and sale of cosmetics in the U.S. was virtually unregulated--------the food, drug, and cosmetic art of 1938
A. and until the pass of
B. and until passing
C. until the passage of
D. until passed
3.In the late 1860’s, taxes were changed in the southern US to require payment from plantation owners-------just from landless individuals.
A. despite
B. whereas
C. rather than
D. other than
4.About 25000 years ago some of North America’s early settles walked across the land-------between Siberia and Alaska.
A. that then is existed
B. existed then
C. that then existed
D. and then existing

第一题选B.首先这里缺失的是宾语补足语成分,需要用形容词来担任,其次因为这里的比较对象是用听诊器和不用听诊器的区别,应该用比较级(用比不用更容易),而不是同级比较(用和不用一样容易)。
第二题选C。首先这一个固定句型 not… until…,表
直到……才……。其次until引导时间状语。其连接作用的词是连词,包括并列连词(and, but, or…)连接并列成分和从属连词(until, when, because)连接状语.这道题考的是时间状语,所以需要从属连词,不能再加and.另外,从属连词后面可加名词或从句做状语,选D的话不是一个从句,因为主语缺失。
第三题选C。rather than 表“而不是”,从上下来看,税收改变,后又有just表仅仅,前后应是表对比,所以需要用表转折的连接副词。other than 表“除了”,如果选这个选项的话,前面应有表示又增收……这类含义的词。因此句意不符。
第四题选C。between Siberia and Alaska是作定语修饰前面的land,所以英语定语从句的形式。that 是关系代词在定语从句中做主语,相当于land, then 是时间状语表“在那时”,existed 是谓语动词,不及物,所以不能有被动语态,加ed 是表过去时。选D的话用and 连接说明是并列成分,前面是句子,后面不能用分词,并列连词前后形式必须一致。而且句意也不通,“……并且那时存在于西伯利亚和阿拉斯加之间”?