operation n. 手术

successful adj. 成功的

following adj. 下一个

patient n. 病人

alone adj. 独自的

exchange n. （电话的）交换台

inquire v. 询问，打听

certain adj. 某个

caller n. 打电话的人

relative n. 亲戚

第二天 the next day, the following day

第二个星期 the next week, the following week

alone 强调人孤单一个

home alone 独自在家

leave me alone 我烦着呢，别理我

inquire sth. of sb. 从某人那打听 ...

inquire about sth.

some + 可数名词单数时表示某个

certain 后面的东西不能定

a certain boy

two certain boys

certain 根据它前面的数量来定

某一个 a certain + n

某两个 two certain +n (复数)

for some reason 由于某个原因

Key structures

如果直接引语是问句，变为间接引语时，主句 不说He said，而用 He asked

told 可以跟问句连，还可以跟陈述句连

祈使句：唯一不以从句方式表达的

tell sb. to do sth.

ask sb. to do sth.

从 that 引导的是陈述句

Has my operation been successful?

1. certain 前面加数字表某几个