PETS－2語法講解(23)

PETS－2語法講解(33)

'不定式的特殊句型so as to 1） 表示目的；它的否定式是so as not to do。Tom kept quiet about the accident so as not to lose his job.湯姆對事故保持沉默是為了不丟掉他的工作。Go in quietly so as not to...'

PETS－2語法講解(28)

'感官動詞 + doing/to do 感官動詞 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel + do 表示動作的完整性，真實(shí)性；+doing 表示動作的連續(xù)性，進(jìn)行性I saw him work in the gard...'

PETS－2語法講解(26)

'mean to doing/to do mean to do 打算、想mean doing 意味著 I mean to go, but my father would not allow me to.我想去，但是我父親不肯讓我去。 To raise wage means increasing purchasing power.贈加...'