2
E.g. I spend two hours on this maths problem.
(2) spend time/ money (in) doing sth. 花费时间、金钱做某事。
E.g. They spend two years (in) doing this bridge.
(3) spend money for sth. 花钱买某物
E.g. His money was spent for books.
B. cost 的主语是物或者某种活动，还可以表示 “值”，常见的用法如下：
(1) sth. cost (sb.)+金钱表示 “某物花了（某人）多少钱 ”。
E.g. A computer costs a lot of money.
(2) (doing) something cost (sb.) + 时间表示 “（做某事）某物花了（某人）多少时
间。”
E.g. Remembering these new words cost him a lot of time.
C. take 后面常跟双宾语，常见的用法如下：
(1) it takes sb.+时间+ to do sth. 做某事花费了某人多少时间。
E.g. It took them three years to build this road.
(2) doing sth. takes sb.+时间表示 “做某事花了某人多少时间 ”。
E.g. Repairing this car took him the whole afternoon.
D. pay 的基本用法：
(1) pay (sb.) money for sth. 付钱给某人买某物。
E.g. I have to pay him two dollars for this bread.
(2) pay for (sth.) 付某物的钱。
E.g. I have to pay for the lost book.
(3) pay for sb. 替某人付钱。
E.g. Don't worry. I will pay for you.
3.3 till, until
两者都可以用作介词和连词，也都可以用于肯定句和否定句中。 Till 比until
的语气轻，一般不放在句首。
3.4 ago, before.
Ago 表示从现在算起一段时间 “以前，”和动词的一般过去式连用。放在所修饰
词后面。
E.g. I knew him many years ago.
Before 用于表示从过去的某时算起若干时间以前，通常与动词的完成时连用。
E.g. I have never heard of her before.
3.5 Alone 与lonely
Alone 独自一人，充当标语形容词（不作定于用） 。
充当状语。
E.g. She lives alone in the house.
Lonely 孤独的，指心理上的愁闷。可作表语和定语。
E.g. He doesn't fell lonely.
4. 知识点拓展：
4.1 agree with sb. 表示“同意某人或者某人所说的话 ”。
