1、 2022年12月四级语法知识点:比较状语从句than, asas,not so as,(not) the same as, the+比拟级;eg:Light travels fast than sound.the+比拟级:eg:The sooner,the better.eg:Girls are thus seen as less valuable than boys and art kept at home to do housework while their brothers are sent to school - the prophecy(预言) becomes self- ful
2、filling, trapping women in a vicious circle (恶性循环) of neglect.(1)当的时候:while, when, as ;when:强调一件事情正在发生的时候,另外一件事情突然发生;eg:When I was watching TV, my mother came back.while:强调两个动作同时进展,一边一边;eg:My father is cooking while my mother is reading newspaper.as:“随时间推移“eg:As time went by, the days became longer
3、and longer.(2)一就:as soon as ,主将从现;用directly,immediately, instantly连接两个句子;一些名词如the minute,the moment, the instant也可表示;no sooner than, hardly when后面的句子需要倒装;eg:I will write to you the moment/minute I arrived in Paris.(3)特别单词:by the time that, every/each time(使用时后面不要再加when)(4)till否认形式表达的意思是“直至某时才做某事“,一般
4、用until,动词为连续性或非连续性都可以;eg: I slept until midnight.Wait till I call you.She didn”t arrive until 6 o”clock. Until可用于句首,而till通常不用于句首,通常用于句中;eg: Until you told me, I had heard nothing of what happened.eg:As you sleep you pass through a sequence of sleep stateslight sleep, deep sleep and REM (rapid eye movement) sleepthat repeats approximately every 90 minutes.