Unit one 1
To find a best friend is difficult
I need to sleep for 8 hours every night
I asked him to come over
I have an important meeting to attend
His aim was to cheer me up
You need to apologize quickly to avoid losing a good friend
主语宾语宾语补足语定语表语状语 1
the to-infinitive used as the subjectTo obey law is everyone's duty
To talk with your mouth full is rude
不定式作主语,谓语动词用单数To find a best friend is difficult
It is difficult to find a best friend
主语太长时,用 it 作形式主语 1
Is ________ necessary to complete the design before National Day
this B
that C
To do as many exercises as possible ______necessary before exam
have D
It’s a good habit ______ breakfast very day
have C
to have[ 典型例题 ] 2
the to-infinitive used as the objec