be worth doing 值得被……(主动形式表被动含义)The book is well worth reading
这本书很值得被读
be busy doing 正 忙 着 做 … … I am busy preparing for the coming final exam
我正忙着为即将到来的期末考试做准备
too…to do
太……而不能…… The boy is too young to go to school
这个男孩太小了以至于不能去上学
so+adj
as to do 如此……以致于
She worked so hard as to pass all her tests
她学习如此努力以致于通过了所有考试
It takes sb
some time to do sth
做某事花费某人
时间 It takes me 15 minutes to go to school every day
每天上学花费我 15分钟的时间
spends some time(in)doing sth
某人花……时间做某事 I spend 20 minutes in doing my homework every day
我每天花20 分钟写作业
It is+adj
+for sb
to do sth
对某人来说,做某事是……的 It is important for zookeepers to protect the pandas
对动物园管理员来说,保护动物是重要的
wish sb
/abj 祝愿某人…… I wish you good luck
have some difficulty/trouble(in)doing sth