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初中英语牛津译林版九年级下册Unit 4 Life on MarsReading教学课件ppt
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这是一份初中英语牛津译林版九年级下册Unit 4 Life on MarsReading教学课件ppt，共31页。PPT课件主要包含了While-task，crowded，are等内容，欢迎下载使用。
Learning aims
1.T learn sme language pints in the be able t finish sme exercises accrding t the text.
Pre-task Task 1 Revisin A: Answer the fllwing questins abut the life n Mars.
When will peple mve t the planet Mars?Why will we leave ur wn planet Earth ?Hw lng des the spacecraft need t get t Mars at present ?Hw lng des the spacecraft need t get t Mars in the future ?What wuld fd n Mars be like?
By the year 2100.
Because Earth is becming mre and mre crwded and plluted.
It takes mnths.
Abut 20 minutes.
Fd wuld prbably be in the frm f pills and wuld nt be s tasty.
6. What will be a prblem fr peple n Mars ?7. Hw can peple prevent this prblem ?8. What are the advantages fr peple n Mars ?9.Which schl wuld the students study at?10. Where shuld the students cnnect their cmputers ?
Peple will have t wear special bts t prevent themselves frm flating ff int space.
a. Mre space b. Mre time t relax c. N schl.
They wuld study at nline schls with"e-teachers".
They shuld cnnect their cmputers t an interplanetary netwrk.
Revisin B: Fill in the blanks with prper wrds.
Our wn planet , earth , is becming mre and mre ________ and _________. Hpefully, we can build a better wrld n _______ by the year 2100. At present , ur spacecraft are t slw t carry large numbers f ____________ t Mars. By 2100, the __________might take nly 20 minutes in spacecraft that travel at the speed f light. Fd n Mars wuld prbably be in the _______ f pills and wund nt be s ________ as that n the Earth. Gravity culd be anther prblem fr peple n Mars. The gravity n Mars is nly abut______________ f that n the Earth . Peple n Mars have t wear special________ t prevent themselves frm__________ff int the space.
three-eighths
Task1: Language pints.
1.Our wn planet, the Earth, is becming mre and mre crwded and plluted.
mre and mre crwded 越来越拥挤mre, mst 放在多音节形容词、副词前面，帮助构成比较级和最高级。如：mre beautiful, mst slwly这里，mre and mre 用来加强程度，表示越来越怎么样。而短形容词则这样构成：bigger and bigger
越来越年轻 越来越快越来越聪明越来越细心越来越好越来越舒服
Praise yur partner r yur best friend with the “cmparative + cmparative ”.
cmparative + cmparative
yunger and yunger
faster and faster
clever and clever
mre and mre careful
better and better
mre and mre cmfrtable
crwded用作形容词，意为“拥挤的”。be crwded with意为“充满，挤满”。The rm was crwded with guests. 房间里挤满了客人。
根据汉语意思完成句子。1. The bus was s _________ (拥挤的) that I didn’t get n it.2. As we get nearer, the image becmes ________________ (越来越大).
bigger and bigger
2. At present, ur spacecraft are t slw t carry large numbers f peple t Mars.
(1) +adj.+ t d
Sandy 太小了而不能去上学。
Sandy is t yung t g t schl.
... s ... that ’t
Sandy is s yung that she can’t g t schl.
... adj. +enugh t d ...
Sandy is nt ld enugh t g t schl.
It's time fr yu t make sentences with the sentence structures abve.
椅子太硬，小宝宝不能坐。墙太高，我们爬不过去。门太窄，四个人走不过去。问题太难，我们解决不了。
The chair is t hard fr the baby t sit n.The chair is nt sft enugh fr the baby t sit n.The chair is s hard that the baby can't sit n it.
The wall is t high fr us t climb ver.The wall is nt lw enugh fr us t climb ver.The wall is s high that we can't climb ver it.
The dr is t narrw fr fur peple t g thrugh.The dr is nt wide enugh fr fur peple t g thrugh.The dr is s narrw that fur peple can't g thrugh it.
The prblem is t hard fr us t wrk ut.The prblem is nt easy enugh fr us t wrk ut.The prblem is s hard that we can't wrk ut it.
large numbers f 许多，大量，修饰______名词,做主语时，谓语动词常用______形式，相当于a lt f, many。eg. Large numbers f birds _____(fly) t the suth every winter.
(2) large numbers f ...
the number f ……的数目 后常接可数名词复数，做主语时，谓语动词常用单数形式。
(1)China has ______________ f peple.(2) _____________ the ppulatin f china is 1.3 millin.(3) ____________ my friends came t my birthday party.
a (large) number
The number f
A number f
eg.The number f turists ______(start) t tail ff in Octber. 游客在十月份开始逐渐减少。
3. With the develpment f technlgy, by the year 2100, the jurney might nly take abut 20 minutes in spacecraft that travel at the speed f light! 随着技术的发展，到2100年，乘坐以光速飞行的宇宙飞船，行程或许只要大约20分钟！
I was secnd in the race with a time f 14.2 secnds.
介词with短语，在句中常用作状语，表示原因、条件、时间、伴随、方式等。
我以14.2秒的成绩在比赛中位列第二。
By the time/When I gt t the statin, the train __________(leave). By the end f this term, we _______(learn) 2000 wrds.By nw, I _______(finish) my hmewrk.
by “到...为止，截止... ”, by+现在的时间点,用现在完成时; by+将来的时间点，用一般将来时；by+过去的时间点，用过去完成时。
at a/the speed f 表示“以……的速度”
The car is mving at a speed f 100 kilmetres per hur.
小汽车正以每小时100公里的速度行驶。
will learn
have finished
1、光的速度是300,000,000 米每(per)秒。
The speed f the light is 300,000,000 meters per secnd.
The cars are driving at high speed.
We shuld mve at full speed.
4. The gravity n Mars is nly abut three-eighths f that n the Earth.火星上的重力大约只有地球上的八分之三。
The air n Mars is much thinner than that n the Earth.
在做比较时，我们常用that/thse指代句中类似或相同的那一部分。此句中that指代前面的gravity.
火星上的空气要比地球上的稀薄的多。
Three-eighths 八分之三基数词表示分子，序数词表示分母。如：ne-tenth 十分之一a third 三分之一注意：分子除用ne外，也可用a；
tw thirds 三分之二fur fifths 五分之四但是，1/2 a (ne) half。1/4和3/4可以说 a (ne) furth 和 three furths, 也用a quarter 和 three quarters表示。
如果分子大于1， 分母要用复数形式。如：
选择题。Abut ______ f the students are frm freign cuntries. (2016山东东营)A. three fur B. three furthC. third furth D. three furths翻译句子。我们班五分之三是女生。_____________ the students in my class________ girls.
Three-fifths f
5. Cmpared with life n Earth, life n Mars will be better in many ways.
cmpare with/t 把……相比较 We carefully cmpared the first reprt with the secnd ne.我们仔细的对第一份报告和第二份报告进行了对比。
cmpare ... t 意为“把……比作……”。Shakespeare cmpared the wrld t a stage.莎士比亚把人世比作舞台。
1. ________ the tw prducts and tell me the differences between them.2. ________ with his idea, yurs is much mre creative.3. __________ the tw prducts and telling the differences are nt easy.4. __________ with thers all the time is nt gd fr yu.5. ________ with his rm, my rm was much smaller.
6. Fd wuld mst prbably be in the frm f pills and wuld nt be s tasty.
as + adj. / adv. + as
Amy 和sandy 一样苗条。Amy 跳舞没有Sandy跳得优美。
Amy is as slim as Sandy.
Amy desn’t dance as/s beautifully as Sandy.
nt as / s + adj. / adv.+ as
in the frm f 以……形式
1. The dishes cked by Mum are much ______ than _____ cked by Dad.A. tasty; that B. tastier; thse C. tasty; thse D. tastier; that2. It is said that fd n Mars is less _____ than ____ n the Earth.A. tasty; that B. tastier; thse C. tasty; thse D. tastier; that
7. specially adv. 专门,特地 fr ne purpseespecially adv. 尤其,特别 整体中突出具体某个I made chclate cake _________ fr yu.Kunming is beautiful all year rund, ________ in spring.This kind f phne is ________ designed fr the ld.Yaming des lts f charity wrk, _________ fr pr Chinese teenagers.
8. prevent/stp/keep sb frm ding sthPeple shuld be stpped _______ (pllute) the envirnment.The gvernment makes laws t prevent peple frm ________(cut) dwn trees.Peple have t wear bts that are specially designed t prevent themselves frm ______ (flat) ff in space.
9. Every student wuld have a cmputer at hme cnnected t an interpanetary netwrk.The railway _________ Qinghai t Tibet is the lngest plateau railway in the wrld.The railway which ________ Qinghai t Tibet is the lngest plateau railway in the wrld.It is said that the city ________ t Nantng by the new highway will hld a flwer shw.The keybard which ___________ t the cmputer is cheap.The city ______________ t that city by the highway next year.
is cnnected
will be cnnected
10. Life n Mars wuld be interesting as well as challenging.火星上的生活，不仅有挑战性，还很有趣。
1. I want t visit Andrew __________ Martin.
as well as 意思为“不但……而且……”
2. She shares my trubles __________ my jys.3. The teacher __________ his students enjys classical music.4. The shp sells bks __________ statinary.5. Withut glasses, he is ___________ blind.
Discussin abut life n Mars
☆ Nt crwded/plluted☆ Have mre space☆ Rbts will d ur wrk.☆ Students will study at hme.☆ Peple will have mre time t relax.☆ Peple will wear special designed bts.☆ N traffic jam …
◇ Lw gravity◇ Fd desn’t taste gd◇ Travel will make peple feel sick.◇ Mney is nt imprtant ◇ Far away frm friends n Earth …
Disadvantages
Task 2 : Every grup , please give a reprt.
Task3 : D Mre exercises.
Translate the fllwing phrases.以光速运行 ______________________ 2.在很多方面 ___________飘进太空 _________________ 4.现在，目前 ________________________5.cmpare with ________ 6.large numbers f _____________
travel at the speed f light
in many ways
flat ff int space
at present
A. Fill in the blanks with the crrect frms f the wrds in the bracketsWe had a _______ meal with her last night. (taste) The river has been ________ by waste water frm the factry. (pllutin) We will be a bit _______ in that small rm .(crwd) Humans n Mars have t wear special shes t prevent themselves frm_______ .(flat)
1. 我只能跑到刘翔一半的速度。 I can run nly__________________________.2. 这个孩子太矮了，他够不着桌子上的苹果。The child is ___________ reach the apples n the table.3. 我们学校的学生人数只是他们的五分之二。The number f students in ur schl is nly ____________________ in their schl.4. 食物将会是药片形状的而且不像今天的那么味道好。Meals will __________________ and wn’t ____________ they are tday.
at half the speed f Liu Xiang
tw-fifths f that
be in the frm f pills
be as tasty as
B.Translate the fllwing sentences.
Learning aims
1.T learn sme language pints in the be able t finish sme exercises accrding t the text.
Pre-task Task 1 Revisin A: Answer the fllwing questins abut the life n Mars.
When will peple mve t the planet Mars?Why will we leave ur wn planet Earth ?Hw lng des the spacecraft need t get t Mars at present ?Hw lng des the spacecraft need t get t Mars in the future ?What wuld fd n Mars be like?
By the year 2100.
Because Earth is becming mre and mre crwded and plluted.
It takes mnths.
Abut 20 minutes.
Fd wuld prbably be in the frm f pills and wuld nt be s tasty.
6. What will be a prblem fr peple n Mars ?7. Hw can peple prevent this prblem ?8. What are the advantages fr peple n Mars ?9.Which schl wuld the students study at?10. Where shuld the students cnnect their cmputers ?
Peple will have t wear special bts t prevent themselves frm flating ff int space.
a. Mre space b. Mre time t relax c. N schl.
They wuld study at nline schls with"e-teachers".
They shuld cnnect their cmputers t an interplanetary netwrk.
Revisin B: Fill in the blanks with prper wrds.
Our wn planet , earth , is becming mre and mre ________ and _________. Hpefully, we can build a better wrld n _______ by the year 2100. At present , ur spacecraft are t slw t carry large numbers f ____________ t Mars. By 2100, the __________might take nly 20 minutes in spacecraft that travel at the speed f light. Fd n Mars wuld prbably be in the _______ f pills and wund nt be s ________ as that n the Earth. Gravity culd be anther prblem fr peple n Mars. The gravity n Mars is nly abut______________ f that n the Earth . Peple n Mars have t wear special________ t prevent themselves frm__________ff int the space.
three-eighths
Task1: Language pints.
1.Our wn planet, the Earth, is becming mre and mre crwded and plluted.
mre and mre crwded 越来越拥挤mre, mst 放在多音节形容词、副词前面，帮助构成比较级和最高级。如：mre beautiful, mst slwly这里，mre and mre 用来加强程度，表示越来越怎么样。而短形容词则这样构成：bigger and bigger
越来越年轻 越来越快越来越聪明越来越细心越来越好越来越舒服
Praise yur partner r yur best friend with the “cmparative + cmparative ”.
cmparative + cmparative
yunger and yunger
faster and faster
clever and clever
mre and mre careful
better and better
mre and mre cmfrtable
crwded用作形容词，意为“拥挤的”。be crwded with意为“充满，挤满”。The rm was crwded with guests. 房间里挤满了客人。
根据汉语意思完成句子。1. The bus was s _________ (拥挤的) that I didn’t get n it.2. As we get nearer, the image becmes ________________ (越来越大).
bigger and bigger
2. At present, ur spacecraft are t slw t carry large numbers f peple t Mars.
(1) +adj.+ t d
Sandy 太小了而不能去上学。
Sandy is t yung t g t schl.
... s ... that ’t
Sandy is s yung that she can’t g t schl.
... adj. +enugh t d ...
Sandy is nt ld enugh t g t schl.
It's time fr yu t make sentences with the sentence structures abve.
椅子太硬，小宝宝不能坐。墙太高，我们爬不过去。门太窄，四个人走不过去。问题太难，我们解决不了。
The chair is t hard fr the baby t sit n.The chair is nt sft enugh fr the baby t sit n.The chair is s hard that the baby can't sit n it.
The wall is t high fr us t climb ver.The wall is nt lw enugh fr us t climb ver.The wall is s high that we can't climb ver it.
The dr is t narrw fr fur peple t g thrugh.The dr is nt wide enugh fr fur peple t g thrugh.The dr is s narrw that fur peple can't g thrugh it.
The prblem is t hard fr us t wrk ut.The prblem is nt easy enugh fr us t wrk ut.The prblem is s hard that we can't wrk ut it.
large numbers f 许多，大量，修饰______名词,做主语时，谓语动词常用______形式，相当于a lt f, many。eg. Large numbers f birds _____(fly) t the suth every winter.
(2) large numbers f ...
the number f ……的数目 后常接可数名词复数，做主语时，谓语动词常用单数形式。
(1)China has ______________ f peple.(2) _____________ the ppulatin f china is 1.3 millin.(3) ____________ my friends came t my birthday party.
a (large) number
The number f
A number f
eg.The number f turists ______(start) t tail ff in Octber. 游客在十月份开始逐渐减少。
3. With the develpment f technlgy, by the year 2100, the jurney might nly take abut 20 minutes in spacecraft that travel at the speed f light! 随着技术的发展，到2100年，乘坐以光速飞行的宇宙飞船，行程或许只要大约20分钟！
I was secnd in the race with a time f 14.2 secnds.
介词with短语，在句中常用作状语，表示原因、条件、时间、伴随、方式等。
我以14.2秒的成绩在比赛中位列第二。
By the time/When I gt t the statin, the train __________(leave). By the end f this term, we _______(learn) 2000 wrds.By nw, I _______(finish) my hmewrk.
by “到...为止，截止... ”, by+现在的时间点,用现在完成时; by+将来的时间点，用一般将来时；by+过去的时间点，用过去完成时。
at a/the speed f 表示“以……的速度”
The car is mving at a speed f 100 kilmetres per hur.
小汽车正以每小时100公里的速度行驶。
will learn
have finished
1、光的速度是300,000,000 米每(per)秒。
The speed f the light is 300,000,000 meters per secnd.
The cars are driving at high speed.
We shuld mve at full speed.
4. The gravity n Mars is nly abut three-eighths f that n the Earth.火星上的重力大约只有地球上的八分之三。
The air n Mars is much thinner than that n the Earth.
在做比较时，我们常用that/thse指代句中类似或相同的那一部分。此句中that指代前面的gravity.
火星上的空气要比地球上的稀薄的多。
Three-eighths 八分之三基数词表示分子，序数词表示分母。如：ne-tenth 十分之一a third 三分之一注意：分子除用ne外，也可用a；
tw thirds 三分之二fur fifths 五分之四但是，1/2 a (ne) half。1/4和3/4可以说 a (ne) furth 和 three furths, 也用a quarter 和 three quarters表示。
如果分子大于1， 分母要用复数形式。如：
选择题。Abut ______ f the students are frm freign cuntries. (2016山东东营)A. three fur B. three furthC. third furth D. three furths翻译句子。我们班五分之三是女生。_____________ the students in my class________ girls.
Three-fifths f
5. Cmpared with life n Earth, life n Mars will be better in many ways.
cmpare with/t 把……相比较 We carefully cmpared the first reprt with the secnd ne.我们仔细的对第一份报告和第二份报告进行了对比。
cmpare ... t 意为“把……比作……”。Shakespeare cmpared the wrld t a stage.莎士比亚把人世比作舞台。
1. ________ the tw prducts and tell me the differences between them.2. ________ with his idea, yurs is much mre creative.3. __________ the tw prducts and telling the differences are nt easy.4. __________ with thers all the time is nt gd fr yu.5. ________ with his rm, my rm was much smaller.
6. Fd wuld mst prbably be in the frm f pills and wuld nt be s tasty.
as + adj. / adv. + as
Amy 和sandy 一样苗条。Amy 跳舞没有Sandy跳得优美。
Amy is as slim as Sandy.
Amy desn’t dance as/s beautifully as Sandy.
nt as / s + adj. / adv.+ as
in the frm f 以……形式
1. The dishes cked by Mum are much ______ than _____ cked by Dad.A. tasty; that B. tastier; thse C. tasty; thse D. tastier; that2. It is said that fd n Mars is less _____ than ____ n the Earth.A. tasty; that B. tastier; thse C. tasty; thse D. tastier; that
7. specially adv. 专门,特地 fr ne purpseespecially adv. 尤其,特别 整体中突出具体某个I made chclate cake _________ fr yu.Kunming is beautiful all year rund, ________ in spring.This kind f phne is ________ designed fr the ld.Yaming des lts f charity wrk, _________ fr pr Chinese teenagers.
8. prevent/stp/keep sb frm ding sthPeple shuld be stpped _______ (pllute) the envirnment.The gvernment makes laws t prevent peple frm ________(cut) dwn trees.Peple have t wear bts that are specially designed t prevent themselves frm ______ (flat) ff in space.
9. Every student wuld have a cmputer at hme cnnected t an interpanetary netwrk.The railway _________ Qinghai t Tibet is the lngest plateau railway in the wrld.The railway which ________ Qinghai t Tibet is the lngest plateau railway in the wrld.It is said that the city ________ t Nantng by the new highway will hld a flwer shw.The keybard which ___________ t the cmputer is cheap.The city ______________ t that city by the highway next year.
is cnnected
will be cnnected
10. Life n Mars wuld be interesting as well as challenging.火星上的生活，不仅有挑战性，还很有趣。
1. I want t visit Andrew __________ Martin.
as well as 意思为“不但……而且……”
2. She shares my trubles __________ my jys.3. The teacher __________ his students enjys classical music.4. The shp sells bks __________ statinary.5. Withut glasses, he is ___________ blind.
Discussin abut life n Mars
☆ Nt crwded/plluted☆ Have mre space☆ Rbts will d ur wrk.☆ Students will study at hme.☆ Peple will have mre time t relax.☆ Peple will wear special designed bts.☆ N traffic jam …
◇ Lw gravity◇ Fd desn’t taste gd◇ Travel will make peple feel sick.◇ Mney is nt imprtant ◇ Far away frm friends n Earth …
Disadvantages
Task 2 : Every grup , please give a reprt.
Task3 : D Mre exercises.
Translate the fllwing phrases.以光速运行 ______________________ 2.在很多方面 ___________飘进太空 _________________ 4.现在，目前 ________________________5.cmpare with ________ 6.large numbers f _____________
travel at the speed f light
in many ways
flat ff int space
at present
A. Fill in the blanks with the crrect frms f the wrds in the bracketsWe had a _______ meal with her last night. (taste) The river has been ________ by waste water frm the factry. (pllutin) We will be a bit _______ in that small rm .(crwd) Humans n Mars have t wear special shes t prevent themselves frm_______ .(flat)
1. 我只能跑到刘翔一半的速度。 I can run nly__________________________.2. 这个孩子太矮了，他够不着桌子上的苹果。The child is ___________ reach the apples n the table.3. 我们学校的学生人数只是他们的五分之二。The number f students in ur schl is nly ____________________ in their schl.4. 食物将会是药片形状的而且不像今天的那么味道好。Meals will __________________ and wn’t ____________ they are tday.
at half the speed f Liu Xiang
tw-fifths f that
be in the frm f pills
be as tasty as
B.Translate the fllwing sentences.
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