8.1 stop doing/to do stop to do 停止，中断做某事后去做另一件事。stop doing 停止做某事。 They stop to smoke a cigarette. 他们停下来，抽了根烟。 I must stop smoking. 我必须戒烟了。典型例题 She reached the top of the hill and s…...

18.8 what/whatever;that/what; who/whoever 1）what = the thing which；whatever = anything What you want has been sent here. Whatever you want makes no difference to me. 2) who= the person that whoever= anyone who （错）Who b…...

4.8 as + 形容词或副词原级 + as 1）在否定句或疑问句中可用so… as。 He cannot run so/as fast as you.2）当as… as 中间有名词时采用以下格式。 as +形容词+ a +单数名词 as + many/much +名词 This is as good an example as the other …...

14.3 以否定词开头作部分倒装 如 Not only…but also, Hardly/Scarcely…when, No sooner… than Not only did he refuse t...

2.2 定冠词的用法 定冠词the与指示代词this，that同源，有"那（这）个"的意思，但较弱，可以和一个名词连用，来表示某个或某些特定的人或东西。 1）特指双方都明白的人或物： Take the medicine. 把药吃了。 2）上文提到过的人或事： He bought…...

1.4 不可数名词量的表示 1）物质名词 a. 当物质名词转化为个体名词时。 比较： Cake is a kind of food. 蛋糕是一种食物。 (不可数) These cakes are sweet. 这些蛋糕很好吃。 (可数) b. 当物质名词表示该物质的种类时，名词可数。 This…...

11.6 be to和be going to be to 表示客观安排或受人指示而做某事。 be going to 表示主观的打算或计划。 I am to play football tomorrow afternoon. (客观安排) I'm going to play football tomorrow afternoon. (主观安排) ...

21.10 would rather表示"宁愿" would rather do would rather not do would rather… than… 宁愿……而不愿。 还有would sooner, had rather, had sooner都表示"宁愿"、"宁可"的意思。 If I have a choice, I had sooner not continue my studies a…...

7.11 不定式的特殊句型too…to… 1）too…to 太…以至于… He is too excited to speak. 他太激动了，说不出话来。 ---- Can I help you ? 需要我帮忙吗? ---- Well, I'm afraid the box is too heavy for you to carry it, but thank you all…...

18.3 判断关系代词与关系副词 方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如： This is the mountain village where I stayed last year. I'll n…...