高二英语第十单元At the Tailor\s Shop (在裁店缝)
They have done a great deal of research on that subject .
〖测试要点〗
research 虽然可以用复数，但其前不用 two , three , many , several , 但可以加 some 。可以用：do two pieces / items of research 做两项研究工作。
research 后可以接介词 on , about , into 。如：
He has made scientific researches on atom for ton years . 他从事原子科学研究已十年了。
2. offer the best advice and service 提供最好的建议和服务
3. do up 扎好，扣好，包好，整好，打扮。
You\'ve done up your buttons the wron www.xuehuiba.com
g way . 你把钮扣扣错了。
She went to the mirror to do up her hair .
They did up all the old newspapers and put then in a separate room .
Mary has done herself up for the palace ball .
4. be suitable for + ing / sth 适合于，宜于
These story-books are suitable for children to read .
This kind of food is unsuitable for the patients .
Is he suitable / fit for this job ?
5. understand about … 懂得有关……
对比：Do you understand the meaning ? 你明白/ 理解那个意思吗？
Do you understand about space ? 你了解有关太空的情况吗 ？
6. take sb seriously 对某人认真接待，重视某人
It is foolish of you not to take this boss seriously .
7. (and) what is worse = to make matters worse 更糟糕的是
What was worse , this wine was not at all suitable for drinking with a meal .
He felt very hungry . What\'s worse , he had no money on him .
It got dark , and what was worse , we lost our way in the forest .
8. give sb the right / wrong change 给某人对/错钱
9. keep back 扣下，止住，隐瞒，留在后面
The boss kept back $30 from her pay without any reason . 老板无缘无故地从她的工资中扣掉30美元。
On hearing the news , the woman couldn\'t keep back her tears .
There\'s no need to keep it back from you .
10. enjoy equal rights 享有平等的权利
In China women enjoy equal rights with men .
11. fight sb to the end 同某人血战到底
No matter how powerful the enemy seems , we must fight them to the end .
12. know little about 对……知之甚少
13. in the world = on earth = completely 完全地，究竟，到底
14. get caught in 遇到，挂住
Her dress got caught on a nail .
They got caught in the rain the day before yesterday .
15. come off 脱离，掉下来
The branches have come off the trees .
16. in the same order 以相同的顺序
17. as usual 和往常一样，照例
As usual , he got up very early .
Only a week after the fire in the store , it was doing business as usual .
■ 单元语法学习目标
●对 as if 用法的探微
本单元的语法学习是掌握 as if 的用法。as if 是连词词组，相当于 as though , 意为\"好像，好似\"，引导表语从句和状语从句。学习中应注意如下四点：
1 . as if 引导表语从句。
as if 引导表语从句时，可以和 as though 互换，其句型为：\"It looks / seem as if …\"，其中 it 本身无词义，是无人称代词，looks / seems 是连系动词，as if 引导表语从句。例如：
It looks / seems as if you have got no experience . 看来你似乎并没有经验。
2 . as if 引导方式状语从句。
as if 引导的方式状语从句中，从句中的动词一般要用虚拟语气。若表示与现在事实相反的主观设想，动词用过去式 (be 用 were ，适用于各种人称)；若表示与过去事实相反的主观设想，动词用\"had + 过去分词\"形式。例如：
He acted as if he were smoking . 他那举动好像他抽烟似的。
They talked as if they had been friends for years . 他们说话很亲热，就像多年的老朋友似的。
3 . 如果主句的谓语动词是过去式，从句中的动词往往可以用陈述语气，不用虚拟语气。例如：
I heard a noise as if she was crying . 我听到一种声音，好象她在哭泣似的。
He walked past me as if I didn\'t exist . 他从我身旁经过时，好象我不存在似的。
4 . as if 引起从句不用虚拟语气，用陈述语气的情况有：
如果句子的谓语动词是连系动词 look , feel , seem , taste , smell 等时，从句往往用陈述语气。
It looks as if we shall have to walk home . 看来我们得步得回家了。
He looks as if he is going to smile . 他看起来象要微笑似的。
如果所描述的行为本身就是一种事实时，通常用陈述语气。
The astronauts feel as if they are being crushed against the spaceship floor . 宇航员们感到他们好象是被压在船舱上了。
说话者认为属于事实的成分比较大，假设的成分较小时，一般用陈述语气。试比较：
He walks as if he were drunk . (没有醉酒)
He is walking this way and that as if he is drunk . (醉酒的可能性很大)
● No matter + 疑问词及其它
本单元的另一个语法学习项目是 no matter + 疑问词。一般说来，No matter + 疑问词(what , wh
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