参考答案
(1)Being able to (2)drinking (3)Copying (4)Drawing (5)Helping (6)Spending
2).【全员探究】--教师点拨
Compare the differences between-ing form and to do form used as subject.
参考答案
(1)动名词作主语时,表示一般的,抽象概念;而动词不定式作主语,表示具体的特定情景下或有待于完成的动作。如:
①To finish such a long novel will take me several days.("to finish such a long novel"表示具体的、尚未完成的动作)
②Swimming is good for health,but to swim in such a polluted river is harmful to health.("to swim in such a polluted river"指特定情景下的动作)
(2)当it为形式主语时,两者常可以互用。如:
①It's difficult to make the air clean.
②It's difficult making the air clean.
(3)necessary,important等词后只用不定式。如:
①It is necessary to spend enough time on English if you want to learn it well.
②It is important to keep our classroom clean.
(4)no use,no good,a waste of time后常用动名词。如:
①It is no use crying.
②It is no good cheating in the exams.
③It is a waste of time reading a silly book like this.
Step 5.Homework
Finish the Grammar exercises in the Workbook on P85~86.