2. live to be+基数词 + years old“活到...…岁”
3. be in great danger 处在极大的危险中
4. play a part in +名/代/V-ing. 参与某事/做某事
5. help (sb.) with sth. 帮助(某人)做某事
He often helps me with my English.
help sb. (to) do sth. 帮助(某人)做……
He often helps me study English.
help oneself ( to ) 自用(食物等)
Help yourself to the fish. 请随便吃鱼
6. the same as… 和……一样...... 反义短语: be different from
7. It takes/took/will take sb. some time to do sth. 某人花了……时间做某事(时态根据具体情况决定)
It takes me an hour to get to my office.
spend time/money on sth. 在……上花费时间(金钱)
sb. spend time/money (in) doing sth. 花费时间(金钱)做某事。
I spent two hours on this math problem. 这道数学题花了我个小时。
They spent two years building this bridge. 造这座桥花了他们两年时间。
8. hundreds of + 名词复数 许多/大量......
数词+hundred + 名词复数 几百......
类似的数词还有thousand(千) , million(万)
There are four hundred students in our grade.
There are hundreds of tourists in Beijing every year.
10. the meaning of …...的意思