34. spend … on sth. (+ n. / pron.) 某人在某方面花费（时间/金钱）spend … (in) doing sth. (+ v.-ing) 某人花费（时间/金钱）做某事
这个女孩上个学期在功课上花了很长时间。
The girl spent a lot of time on her lessons last term.
她用其毕生的时间写完了这部传记。
She spent all her life / lifetime in finishing writing this biography.
他每天在英语（学习）上花多长时间？ How long does he spend on English study every day?

35. It’s time( for sb.) to do sth. / It’s time for sth. 该到（做）……的时候了。
该回家了。(两种)
It’s time to go home. It’s time for home.
该开会了。(两种)
It’s time to have a meeting. It’s time for a meeting.
该是Tom吃药的时间了。
It’s time for Tom to take medicine.
该到咱们去图书馆借书的时间了。
It’s time for us to borrow books from the library.

36. It’s … meters (years) long (high, old, wide).
长安街大约10公里长， 60米宽。
Chang an Street is about 10 kilometers long and 60 meters wide.
这座大楼有四十米高。
The building is forty meters high.

37. keep sb. doing sth. 让 / 使某人一直做某事
快点！不要让他们等得太久。
Hurry up! Don’t keep them waiting too long.
他的父母总是让他坚持练习弹钢琴。
His parents always keep him practicing playing the piano.

38. keep / make + n. / pron. + adj. 保持 / 使……怎么样
请你把门敞开着好吗？(Will you please do …?)
Will you please keep the door open?
请保持阅览室干净、整齐。
Please keep the reading room clean and tidy.
保持城市清洁是我们每一个人的责任。(duty)
It’s our duty to keep the city clean.
他的话使父母很生气。
What he said made his parents very angry.

39. like doing / like to do
我妹妹十分喜欢唱歌跳舞。
My younger sister likes singing and dancing very much.
他母亲不喜欢乘坐飞机旅行。
His parents don’t like to travel by plane / air.

40. not … at all. 根本不……，一点儿不……。
这孩子一点儿也不可爱。
This child is not lovely at all.
像班里其他人一样，我根本不了解这位新老师。
I don’t know this new teacher at all like all the others in my class.

41. not … until… 直到……才……
警察找不到那个丢失的孩子是不会回来的。
The policemen won’t come back until they find the lost child.
直到下了第一节课，他才把作业交给老师。
He didn’t hand in his homework until the first period was over.

42. One … the other… 一个……，另一个……
Some… others… 一些……，另一些……
我有两个爱好。一个是游泳，另一个是滑冰。
I have two hobbies. One is swimming, the other is skating.
周三下午有两节课。一节是化学，另一节是政治。
There are two classes on Wednesday afternoon. One is chemistry, the other is politics.
学生们都在做扫除。一些在扫地，还有一些在擦玻璃。
All the students are doing some cleaning. Some are sweeping the floor, others are cleaning the windows.

43. prefer…to… 比起…，更喜欢…。
比起梨，我更喜欢桃子。
I prefer peaches to pears.
夏天，比起游泳，Tom更喜欢冲浪。
Tom prefers surfing to swimming in summer.
prefer to do…rather than do… 宁愿做……也不愿做…..
下雪天，他宁愿走路去上学，也不愿骑车去上学。
He prefers to go to school on foot rather than go to school by bike on a snowy day.
He prefers to walk to school rather than ride to school on a snowy day.

44. see/ hear sb. do / doing sth 看见 / 听到 某人做了某事 / 在做某事
做饭时，我听到有人在敲门。
I heard someone knocking at / on the door when I was cooking.
突然我看到他从自行车上摔了下来。
Suddenly, I saw him fall off the bicycle.