oppose vt． 反对，抵制，阻挠；与．．．．．．．竞争→opposed adj．反对的，相对的
n.opposition 反对
oppose doing sth. 反对做某事
be opposed to 反对...；与...对立（to是介词）object to doing
It seems that she opposes your going abroad.她好像反对你出国。
=She seems opposed to your going abroad. ( be opposed to not doing)
valid adj.符合逻辑的，合理的，有根据的；（法律上）有效的
a valid contract 在法律上有效的合同
circumstance n．条件，环境，境况，状况（通常用复数形式）
in/under no circumstances =in no case=at no time=by no means=in nc way=on no
account＝on no condition 决不（置于句首时，句子部分倒装）
Under no circumstances will you be given a second chance.
无论如何也不会再给你一次机会。
背单词的好方法
随时随地背单词
不知不觉背单词
一般过去时
用于表示过去某时发生的动作或状态，常和表示过去的时间状语连用，如yesterday,last week,three years ago , in 1987, at the time , in July 。
一般将来时
主要用于表示将来发生的动作或情况
在时间或条件状语中，一般不用将来时，而是用现在时代替将来时。I’ll let you know the result when I finish everything。
typical adj．平常的；典型的，有代表性的；特有的→typically adv．典型地，有代表性
地；特有地，独特地
It is typical of sb. to do sth.某人一向做某事
As we all know， it is typical of him to take hard jobs.大家都知道抢挑重担是他的特点。
shallow adj.肤浅的，浅薄的；浅的
Shallow water 浅水
a shallow conversation，book 浅薄的交谈
sacrifice vr.牺牲，献出 n.牺牲，舍弃；祭品
make sacrifices for... 为.......做出牺牲
for good measure 额外
We should throw all of our phones into the dustbin, along with our cars and TVs for good
Measure.我们应该将我们的手机扔进垃圾箱，外加汽车和电视机。
shall, will + 动词原型构成一般将来时;
am (is , are) going to + 动词原型，表示近期打算去做的事情或可能要发生的事情;
am (is , are) about to + 动词原型，表示即将发生的动作;
am (is , an) to + 动词原型，表示必须或计划要进行的动作 You are to be here by 4 pm for collecting the shipment you ordered 。
If you________him yesterday, you____________what to do now.
A. had met; would know
B. have met; would konw
C.met; knew
D.should met; would know
解析：由句意“如果你昨天见了他，你今天就知道做什么了。”可知本题考查的是虚拟语气。
主从句的时间状语分别为“now”和“yesterday”，时间不一致，所以这是一个混合虚拟语气，时态的选择应该根据各自的时间来进行。
所以答案为：A
____________to the doctor right away, he wouldn’t had died at that time.
A. If he w ent B. Had he gone C.Were he gone D. If he should go
解析：
根据虚拟条件句的倒装原则，还原出连词if。
根据虚拟条件句的时态原则，还原出完整的句子。
If he had gone to the doctor right away, he wouldn’t had died at that time.
根据虚拟条件句的倒装原则，把完整句变成倒装句。
Had he gone to the doctor right away, he wouldn’t had died at that time.
