UNIT 5 Period Ⅴ 单元语法（word教参）-【优化探究】2021-2022学年新教材高中英语必修第二册配套教参（北师大版）
Period Ⅴ 单元语法
授课提示：对应学生用书第51页
关系副词引导的定语从句
①I still remember the day when (＝on which) I first came to Beijing.
②This program has set up a big stage for young people with a talent for music，where (＝at which) some have stood out among them.
③The reason why (＝for which) he failed in the exam was that he didn't study hard.
[我的发现]
1．在定语从句中要用下列关系副词：
·用来指代时间的when (在从句中作时间状语，如①句)。
·用来指代地点的where (在从句中作地点状语，如②句)。
·用来指代原因的有why(在从句中作原因状语，如③句)。
2．关系副词when，where和why可以用“介词＋which”来代替，如when＝on_which，where＝at_which，why＝for_which。
1．when引导的定语从句
(1)当先行词是表示时间的名词(如time，day，year，month，week等)且在从句中作时间状语时，定语从句要用when引导。
(2)when可以转化成“介词＋which”的形式。
(3)当先行词表示时间，且关系词在从句中作主语、宾语或表语时，不能用when，而要用关系代词that 或 which引导定语从句(作宾语时关系词可省略)。
I still remember the time when I first became a college student.
我仍然记得我初为大学生的那段时光。
I have forgotten the exact date when (＝on which) this country became independent.
我忘记这个国家独立的确切日期了。
I'll remember the days (which/that) I spent with you.
我会记得和你度过的那些日子。
2．where引导的定语从句
(1)当先行词是表示地点的名词(如place，room，mountain等)且关系词在从句中作地点状语时，定语从句要用where引导。
(2)where可以转化成“介词＋which”的形式。
(3)当先行词是表示地点的名词，且关系词在从句中作主语，宾语或表语时，用关系代词that或which引导定语从句(作宾语时关系词可省略)。
(4)如果先行词为表示抽象地点的名词(如case，state，condition，point，situation等)，且定语从句中成分完整时，用关系副词where引导。
This is the hotel where (＝in which) they are staying.
这就是他们住的旅馆。
His father works in a factory which/that makes radio parts.
他的父亲在一家生产收音机零件的工厂工作。
We have reached a point where a change is needed.
我们到了必须改一改的地步。
He gets into a situation where it is hard to decide what is right and wrong.
他陷入一种难以分辨是非的局面。
It puts me in a position where I can't afford to take the job.
这使我陷入一种不能接受此工作的境地。
3．why引导的定语从句
(1)当先行词是表示原因的名词reason，且关系词在从句中作原因状语时，定语从句要用why引导。
(2)可以用for which来代替why。
(3)why只能引导限制性定语从句。
This is the reason why (＝for which) he leaves so soon.
这就是他匆匆离去的原因。
[名师点津] (1)有时为了表达得更清楚，可以在关系副词where/when前加上介词to，from等。
(2)对一些特殊的先行词如time，day，house，place，reason等要注意具体情况具体分析，作主语、宾语和表语可用that/which引导定语从句，作状语可用when/where/why等或“介词＋which”引导定语从句。
China is the birthplace of kites，from where kites spread to Japan，Korea，Thailand and India.
中国是风筝的故乡，风筝从这里传到了日本、韩国、泰国和印度。
I'll never forget the days when we worked together.
我永远不会忘记我们在一起工作的日子。(作状语)
I'll never forget the days (which/that) we spent together last summer.
我永远不会忘记我们去年夏天一起度过的日子。(作宾语)
Ⅰ.单句语法填空
1．Their child is at the stage where she can say individual words but not full sentences.
2．We have entered into an age when dreams have the best chance of coming true.
3．Selfdriving is an area where China and the rest of the world are on the same starting line.
4．There was a long wait at the reception desk，where everyone was checking in.
5．We will put off the picnic in the park until next week，when the weather may be better.
6．Opposite is a famous concert hall，where you can hear some lovely music.
7．The boss of the company is trying to create an easy atmosphere where his employees enjoy their work.
8．As the smallest child of his family，Alex is always longing for the time when he should be able to be independent.
Ⅱ.完成句子
1．Melissa，his daughter，felt it more than worthwhile to save his music，to which she fell asleep each night when_she_was_young (她小时候)．
2．The loss of big trees was greatest in areas where_trees_had_suffered_the_greatest_water_shortage (那里的树木缺水最严重)．
3．There are several reasons why_school_uniforms_are_a_good_idea (穿校服是个好主意的原因)．
后缀
①He noted that the killing reduces the possibility for cubs or young.
②His proposal that the system should be changed was rejected.
③You should be able to find the old moment for relaxation.
④Tourism is vital for the economy.
⑤Their action can only serve to harden the attitude of landowners.
⑥I take wheat and yeast tablets daily to purify the blood.
⑦It is becoming more acceptable for women to drink.
⑧Only a handful of people came.
⑨It's useless worrying about it.
⑩They are seriously concerned about security.
[我的发现]
1．常见名词后缀有：
ability，ibility 表“能，性质”，如①
an，ian，arian表各种年龄，派别，主义，职业的人