【2025中考一轮复习 教材知识梳理】八下 Unit 9~Unit 10 解析(PPT版+word版)

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名称 【2025中考一轮复习 教材知识梳理】八下 Unit 9~Unit 10 解析(PPT版+word版)
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/ 让教学更有效 英语学科
【2025中考一轮复习 教材知识梳理】八下Unit 9~Unit 10
一、现在完成时态
现在完成时的基本结构:have/has+done。常与ever, never, already, yet, before, so far, for+时间段,since+时间点等连用。
注:当与for, since连用时,短暂性动词需换成延续性动词或表状态的形容词或介词短语。
come—be in; leave—be away; open—be open; close—be closed; begin/start—be on; borrow—keep; buy—have; marry—be married; join—be in; die—be dead等等。
例:I have finished my homework.
我已经做完作业了。
I have lived in Shanghai since I was ten years old.
我从十岁起就住在上海了。
He has kept my bike for five days.
他借我的自行车有五天了。
I have read the book three times.
这本书我看了三遍了。
【同步练习】
1.The old man _____________(die) for three years.
2.So far, the boy ___________(learn) twenty Chinese songs.
3.—Did you see Mr. White this morning
—No, I ____________(not see) him for a week.
4.His father _________(买) the car for two years.
5.Tony misses his family very much. He _________________(离开) from his hometown since five years ago.
二、辨析have/has been to, have/has gone to, have/has been in
have been to“曾经去过,人已经回来了”,常与ever或never连用,也可与表示次数的词连用,表示“去过(某地)几次”。
have gone to“去了”,在去某地的路上或已经在某地,人还未回来,只能用于第三人称。
have been in“已经在(某地)”,常与一段时间连用,相当于have stayed in。
例:I have never been to a water park.
我从来都没有去过水上公园。
—Where’s Kathy
凯西在哪里
—She’s gone to Shanghai.
她去上海了。
He has been in Beijing for ten years.
他在北京十年了。
【同步练习】
1.—Where is Mr. Wang
—He together with his students ___________ Zhuyuwan Park.
2.I _________ to Tibet last year, but I _______ never _________ to Qinghai.
三、—I’ve never been to a water park.我从来没有去过水上公园。
—Me neither.我也没去过。
Me neither意为“我也不”。表示前一句所述的否定情况也适用于后者时,可用此简略形式。
Me too意为“我也一样”。表示前一句所述的肯定情况也适用于后者时,可用此简略形式。
例:—She doesn’t like playing basketball.
她不喜欢打篮球。
—Me neither.
我也不喜欢。
—He can speak English.
他会讲英语。
—Me too.
我也会。
【同步练习】
—He didn’t finish his homework yesterday.
—Me _________.
四、three quarters
three quarters四分之三。英语中分数的表示法为:分子+分母。通常分子是基数词,分母是序数词,若分子大于一,则分母用复数形式。如1/5 one fifth, 4/5 four fifths。若表示“……中的几分之几”,常用“分数+of+名词”结构,此结构作主语时,谓语动词与名词在数上保持一致。
例:Three fourths of the surface of the earth is sea.
地球表面的四分之三是海洋。
Two thirds of the new students are from No.1 Middle School.
三分之二的新生来自第一中学。
【同步练习】
1.Two _________(five) of the land in that village _____________ (cover) with trees and grass.
2.Two _________(three) of the water in the town _________ (come) from that lake.
3.Three _________(four) of the students in our class ______ (go) to school on foot.
五、辨析encourage的用法
encourage作动词,意为“鼓励”,后接动词不定式。encourage sb.(not) to do sth.鼓励某人(不)去做某事。
类似用法的词还有:tell(告诉),invite(邀请),allow(允许),ask(请求),want(想要),promise(答应),refuse(拒绝),wish(希望),expect(预料,盼望,认为)。
例:This kind of contest encourages people in China to speak English.
这种比赛鼓励中国人讲英语。
【同步练习】
用所给词的适当形式填空。
1.When I failed, he always encouraged me _________(try) again.
2.They decided _________ (tell) me the truth.
六、辨析consider的用法
由例句1、2可知,consider意为“考虑、思考”。consider后可接名词、代词或v.-ing形式,不能接不定式。
由例句3、4可知,consider意为“认为”,与think意思相近。由例句3可知,consider sb.(as)...意为“认为某人是……”。由例句4可知,consider后面还可以接宾语从句。
1.Our director is considering Tom’s advice.
我们主任正在考虑汤姆的建议。
2.Why not consider visiting Paris
为什么不考虑游览巴黎呢
3.We consider her (as) a good teacher.
我们认为她是一个好老师。
4.My mother considers that I should play the violin every day.
妈妈认为我应该每天拉小提琴。
【同步练习】
用所给词的适当形式填空。
Mr. Smith is considering _________(buy) a new car.
七、Among these is Zhong Wei, a 46-year-old husband and father.其中包括一位46岁的身为丈夫和父亲的钟伟。
单词 意义 用法
among 在(其)中;……之一 表示“在三者或三者以上之中”
between 介于……之间 表示“在两者(指时间、地点、顺序)之间”
【同步练习】
1.Children must be taught the difference _________ right and wrong.
2.The young generation usually acts as a bridge _________ their families _________ the new environment.
3.Xu Yuanchong was a famous translator in China. He built a cultural bridge _________ Chinese, English and French speakers.
八、Whether you like Indian food, Western food or Japanese food, you’ll find it all in Singapore!不管你喜欢印度食物、西方食物还是日本食物,在新加坡你都能找到!
辨析whether与if:
区别 用法
相同点 whether和if都可以引导宾语从句,表示“是否”,常换用
区别 用法
不同点 whether 在引导宾语从句时,whether可以和or not连用,if不可以
当主句主语和宾语从句主语一致时,可以转换成whether+to do形式,而if不可以
宾语从句跟在介词后时,只能用whether
当宾语从句提到句首时,只能用whether引导,而不能用if
if if可以引导条件状语从句,意为“如果”,而whether不可以
【同步练习】
用whether或if填空。
1.I don’t know _________ he will come tomorrow. ____ he comes tomorrow, I will call you.
2. _________ or not we’re successful, we can be sure that we did our best.
3.I can’t decide _________ to stay.
4.His father is thinking about _________ he will lose his work.
5.Nature is so beautiful. _________ we can get on well with it, our world will be even more beautiful.
  
 
21世纪教育网(www.21cnjy.com)(共25张PPT)
八下Unit 9~Unit 10
解析
人教2025中考一轮复习 教材知识梳理
一、现在完成时态
现在完成时的基本结构:have/has+done。常与ever, never, already, yet, before, so far, for+时间段,since+时间点等连用。
注:当与for, since连用时,短暂性动词需换成延续性动词或表状态的形容词或介词短语。
come—be in; leave—be away; open—be open; close—be closed; begin/start—be on; borrow—keep; buy—have; marry—be married; join—be in; die—be dead等等。
例:I have finished my homework.
我已经做完作业了。
I have lived in Shanghai since I was ten years old.
我从十岁起就住在上海了。
He has kept my bike for five days.
他借我的自行车有五天了。
I have read the book three times.
这本书我看了三遍了。
【同步练习】
1.The old man _____________(die) for three years.
2.So far, the boy ___________(learn) twenty Chinese songs.
3.—Did you see Mr. White this morning
—No, I ____________(not see) him for a week.
4.His father _________(买) the car for two years.
5.Tony misses his family very much. He _________________(离开) from his hometown since five years ago.
has been dead
 has learned 
haven’t seen
has had
 has been away 
二、辨析have/has been to, have/has gone to, have/has been in
have been to“曾经去过,人已经回来了”,常与ever或never连用,也可与表示次数的词连用,表示“去过(某地)几次”。
have gone to“去了”,在去某地的路上或已经在某地,人还未回来,只能用于第三人称。
have been in“已经在(某地)”,常与一段时间连用,相当于have stayed in。
例:I have never been to a water park.
我从来都没有去过水上公园。
—Where’s Kathy
凯西在哪里
—She’s gone to Shanghai.
她去上海了。
He has been in Beijing for ten years.
他在北京十年了。
【同步练习】
1.—Where is Mr. Wang
—He together with his students ___________ Zhuyuwan Park.
2.I _________ to Tibet last year, but I _______ never _________ to Qinghai.
 has gone to 
 went 
 have 
 been 
三、—I’ve never been to a water park.我从来没有去过水上公园。
—Me neither.我也没去过。
Me neither意为“我也不”。表示前一句所述的否定情况也适用于后者时,可用此简略形式。
Me too意为“我也一样”。表示前一句所述的肯定情况也适用于后者时,可用此简略形式。
例:—She doesn’t like playing basketball.
她不喜欢打篮球。
—Me neither.
我也不喜欢。
—He can speak English.
他会讲英语。
—Me too.
我也会。
【同步练习】
—He didn’t finish his homework yesterday.
—Me _________.
 neither 
四、three quarters
three quarters四分之三。英语中分数的表示法为:分子+分母。通常分子是基数词,分母是序数词,若分子大于一,则分母用复数形式。如1/5 one fifth, 4/5 four fifths。若表示“……中的几分之几”,常用“分数+of+名词”结构,此结构作主语时,谓语动词与名词在数上保持一致。
例:Three fourths of the surface of the earth is sea.
地球表面的四分之三是海洋。
Two thirds of the new students are from No.1 Middle School.
三分之二的新生来自第一中学。
【同步练习】
1.Two _________(five) of the land in that village _____________ (cover) with trees and grass.
2.Two _________(three) of the water in the town _________ (come) from that lake.
3.Three _________(four) of the students in our class ______ (go) to school on foot.
 fifths 
 is covered 
 thirds 
 comes 
 fourths 
 go 
五、辨析encourage的用法
encourage作动词,意为“鼓励”,后接动词不定式。encourage sb.(not) to do sth.鼓励某人(不)去做某事。
类似用法的词还有:tell(告诉),invite(邀请),allow(允许),ask(请求),want(想要),promise(答应),refuse(拒绝),wish(希望),expect(预料,盼望,认为)。
例:This kind of contest encourages people in China to speak English.
这种比赛鼓励中国人讲英语。
【同步练习】
用所给词的适当形式填空。
1.When I failed, he always encouraged me _________(try) again.
2.They decided _________ (tell) me the truth.
 to try 
 to tell 
六、辨析consider的用法
由例句1、2可知,consider意为“考虑、思考”。consider后可接名词、代词或v.-ing形式,不能接不定式。
由例句3、4可知,consider意为“认为”,与think意思相近。由例句3可知,consider sb.(as)...意为“认为某人是……”。由例句4可知,consider后面还可以接宾语从句。
1.Our director is considering Tom’s advice.
我们主任正在考虑汤姆的建议。
2.Why not consider visiting Paris
为什么不考虑游览巴黎呢
3.We consider her (as) a good teacher.
我们认为她是一个好老师。
4.My mother considers that I should play the violin every day.
妈妈认为我应该每天拉小提琴。
【同步练习】
用所给词的适当形式填空。
Mr. Smith is considering _________(buy) a new car.
 buying 
七、Among these is Zhong Wei, a 46-year-old husband and father.其中包括一位46岁的身为丈夫和父亲的钟伟。
单词 意义 用法
among 在(其)中;……之一 表示“在三者或三者以上之中”
between 介于……之间 表示“在两者(指时间、地点、顺序)之间”
【同步练习】
1.Children must be taught the difference _________ right and wrong.
2.The young generation usually acts as a bridge _________ their families _________ the new environment.
3.Xu Yuanchong was a famous translator in China. He built a cultural bridge _________ Chinese, English and French speakers.
 between 
 between 
 and 
 among 
八、Whether you like Indian food, Western food or Japanese food, you’ll find it all in Singapore!不管你喜欢印度食物、西方食物还是日本食物,在新加坡你都能找到!
辨析whether与if:
区别 用法
相同点 whether和if都可以引导宾语从句,表示“是否”,常换用
区别 用法
不同点 whether 在引导宾语从句时,whether可以和or not连用,if不可以
当主句主语和宾语从句主语一致时,可以转换成whether+to do形式,而if不可以
宾语从句跟在介词后时,只能用whether
当宾语从句提到句首时,只能用whether引导,而不能用if
if if可以引导条件状语从句,意为“如果”,而whether不可以
【同步练习】
用whether或if填空。
1.I don’t know _________ he will come tomorrow. ____ he comes tomorrow, I will call you.
2. _________ or not we’re successful, we can be sure that we did our best.
3.I can’t decide _________ to stay.
4.His father is thinking about _________ he will lose his work.
5.Nature is so beautiful. _________ we can get on well with it, our world will be even more beautiful.
 if/whether 
 If 
 Whether 
 whether 
 whether 
 If 
Thanks!
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