高中Grammar activity完整版ppt课件

这是一份高中Grammar activity完整版ppt课件，文件包含Unit2BGrammaractivity--高二英语下学期同步课件上教版2020选择性必修第二册pptx、Unit2DigitalhumansBGrammaractivity随堂练习docx等2份课件配套教学资源，其中PPT共16页， 欢迎下载使用。

Use the nn-defining relative clause crrectly in the given cntext
The nn-defining relative clause
The nn-defining relative clause adds infrmatin t a nun phrase r a main clause. They are separated by a cmma in writing r a brief pause in speaking.That's Peter, wh lives next dr
Read the passage. Match clauses 1-9 t grammar rules a-g n page 31.
当先行词表人时，用wh，whm, whse来引导非限制性定语从句。
1. wh引导非限制性定语从句时，一般在从句中作主语成分。【例】My father, wh is a English teacher.2. whm引导非限制性定语从句时，一般在从句中作动词宾语或介词宾语。当它作介词宾语时，介词可以放在句尾。【例】My father, frm whm I have learned a lt, is an excellent English teacher.【例】Tm, whm I met in Shanghai, is nw back in Shenzhen.3. whse引导非限定性定语从句时，因为它是wh的所有格形式，所以它在从句中一般作定语。【例】Tm, whse mther is a nurse, studies very hard.注意，whse还可以指物。后面会讲解。
当先行词表物时，用which， whse来引导非限制性定语从句。
which引导非限制性定语从句时，它在从句中常作主语、动词宾语、介词宾语、表语。在以下几种情况下，要用which引导非限制性定语从句。1． 在先行词表唯一或独一无二的事物时。如the mn, the sun, the earth等2． 先行词表类属的事物时。如ftball是game的一种3． 先行词表某人的职业、品质、身份等，引导词在从句中作表语，并且主句与从句是对比关系时。【例】Tm’s father is a teacher, which he is nt.4． 当先行词是某专有名词时。如Great Wall，Egypt等5． 先行词是形容词，引导词在从句中作表语，并且主句与从句是对比关系时.【例】Tm is very smart, which Ada is nt.
6． 先行词是集体名词表整体时。如family等7． 先行词是国家名词表地域时。如Egypt表Africa注意，which除了修饰名词、名词性短语之外，它还可以修饰形容词、从句和整个主句。是所有关系代词与关系副词中唯一一个有这个功能的。【例】Tm was very patient twards his kids which his wife seldm was. 修饰形容词patient。【例】When deeply absrbed in study, which Tm ften was, he wuld frget everything. 修饰整个主句。【例】Tm said that he had never seen me befre, which was nt true. 修饰从句。whse引导非限制性定语从句并指物时，这个物可以是动物，也可以是没有生命特征的事物。【例】The mvie, whse style is rigidly frmal, is typical f the perid.
当先行词表时间或地点时，用关系副词when, where引导非限制性定语从句。
when引导非限制性定语从句时，它在从句中是作时间状语。【例】Tm will put ff the picnic until September 7th, when he will be free.第二，where引导非限制性定语从句时，它在句中是作地点状语。【例】We went t Shanghai, where we lived fr ne week.注意，如文章开头所说的，当要表达疑问和原因的非限制性定语从句时，不能用why来引导，而是用fr which来代替。【例】Tm had tld them the reasn, fr which he did nt jin the travel.
当先行词是整个句子时，使用as, which来引导非限制性定语从句。
当as引导非限定性定语从句时，是对主句起说明作用。As相当于关系代词，它在从句中一般作主语、宾语、表语。它一般有一些固定的用法与搭配，后面常接expect, knw, reprt, say, see等动词的主动或被动语态，如as it is knw, as is reprted in the newspaper, as always mentined abve, as is usual, as is ften the case, as is knw t all, as we all knw等等。as可放在主句之前，主句之后，主句中间。【例】As we all knw, the basketball is rund. 放在句首，在从句中作宾语。【例】I frgt t bring my handbag with me, as was ften the case. 放在主句之后，在从句中作主语。【例】Kid as she was, she was chsen leader f the team. 放在主句之中，在从句里作表语。Which引导非限制性定语从句修饰整个句子在前面已经提到过。
那当关系代词指代整个主句时，什么时候该用as, 什么时候该用which呢？
第一，as 通常表说话者说于说话的依据、态度、看法或评论等，有“像，正如”等的意思. which修饰整个主句或部分主句时，通常表事实、起因、状态等，有“这一点、这就使得”的意思。第二，as位置灵活，可以放在主句前、后、句中, 而which常放在主句后。第三，在含有否定意义的非限制性定语从句里，通常要用which引导第四，在用“介词+关系代词”引导从句时，不能用as
另外，还有“介词+关系代词”引导非限制性定语从句，使用哪个介词是由介词与先行词或从句里的谓语的搭配关系来决定的。
【例】They thanked Tm, withut whse supprt they wuld nt have succeeded.【例】They were shrt f sticks t make frames fr the climbing, withut which the yield wuld be halved.“名词/代词+f+which/whm” 引导非限制性定语从句【例】The electric factry has arund 1000 emplyees, sixty percent f whm are wmen.
Read the passage and cmplete the sentences with wh, whm, which r when. Add a prepsitin where necessary.
Nwadays, peple use scial media t stay in tuch with friends acrss the glbe. Hwever, befre the 1990s,1 _________it became pssible fr rdinary peple t access the Internet, lng-distance cmmunicatin was a lt mre difficult than it is nw: there weren't any chat apps, and internatinal phne calls were much mre expensive. Back then, it was instead cmmn fr yung peple t write letters t penfriends in ther cuntries, many 2_______ they wuld never meet in real life.
The traditinal penfriend letter,3________students gt t cmmunicate directly with ne anther acrss cntinents, was seen as a way t prmte peace and understanding acrss the wrld. The students,4_____________had never met befre, gt a chance t find ut abut each ther's lives. Penfriend prgrammes are still cmmn, but nwadays peple mstly use email t cmmunicate with internatinal penfriends.
Wrk in pairs. Think f a persn, an bject r a lcatin in yur schl. Make tw sentences abut each f them and then cmbine these using wh, which, where, etc. Yu may use the example belw t help yu.
A: My friend Daming likes playing basketball.B: He is very strng.Daming, wh is very strng, likes playing basketball. Or:Daming, wh likes playing basketball, is very strng.
Nw ask ther classmates abut their ideas. Select the mst interesting ne and reprt t the class.
• Yu may ask questins like this: What d yu want t talk abut?• Yu may respnd like this: I want t talk abut the small canal that passes ur schl. The canal, which is ften cvered by thick layers f fggy mist in the early summer mrnings, is a rich surce f inspiratin fr the students' pems.• Yu may reprt like this: I think the mst interesting tpic is frm Linlin. She says, "The industrial estate next t ur schl, which has been abandned fr a lng time, is cvered in weeds and rusty wires. I wish smene culd clean it up.