牛津译林版九年级下册Grammar教案及反思

这是一份牛津译林版九年级下册Grammar教案及反思，共5页。

设计说明
利用PPT引出从句，启发学生改写成简单句。分别举例、归纳，启发学生如何将含有从句的复合句改写成简单句。使学生在学习的过程中发展自己的观察力、想象力和思维能力。通过操练巩固已学知识，反馈矫正。以训练为主线，帮助学生消化学习内容。归纳三种从句转换成简单句的步骤或方法，强调特殊用法或易错之处并用教材中的练习帮助学生巩固。提醒学生注意介词的使用，再以同义句转换的形式加以联系反馈，让学生理清思路进一步提高学习能力。
教学目标
通过本课节的教学，让学生达成以下目标：
1.知识目标
掌握词汇：circle, agreement, pssibility, dubt, stranger
2.能力目标
掌握状语从句、宾语从句、定语从句与简单句之间的转换
3.情感目标
增强保护环境的意识
重点难点
1. 重点：掌握从句与简单句之间的转换。
2. 难点：转换时注意时态和意思的一致性及准确性。
教学准备
PPT课件
授课时数
1课时
教学过程
Step 1 Lead-in
Ask students t have a shrt review n clauses r simple sentences.
Since students have learnt a lt abut travel in space, ask them t find ut clauses r simple sentences in Reading as many as pssible.
Step 2 Presentatin
A Using adverbial clauses r simple sentences
1. Ask students t rewrite sme sentences.
We can rewrite sme adverbial clauses in simple sentences with prepsitinal phrases beginning with at the age f, because f and withut.
Neil Armstrng received his student pilt’s licence when he was 16.
→Neil Armstrng received his student pilt’s licence at the age f 16.
Peple might flat in space because the gravity is slw.
→Peple might flat in space because f the lw gravity.
Humans cannt survive if there is n fd, water r xygen.
→Humans cannt survive withut fd, water r xygen.
注意：转换时要注意时态和意思的一致性和准确性。
2. Have a cnclusin 状语从句→简单句
通过because f, withut, at the age f介词短语将状语从句转换为简单句。
·时间状语从句可借助介词短语转化为简单句。
·because引导的原因状语从句可用介词短语because f转换为简单句。
·if nt引导的条件状语从句可借助withut短语转化为简单句。
Step 3 Drills
Learning abut uter space
Daniel is writing abut visiting anther planet. Help him rewrite the sentences using the wrds in brackets.
1. Neil Armstrng tk his first flight when he was nly six. (at the age f)
_____________________________________________________________
2. Yuri Gagarin became the first man t g int uter space at the age f 27. (when)
_____________________________________________________________
3. Peple might mve t anther planet in the future because the ppulatin n the Earth is increasing rapidly. (because f)
_____________________________________________________________
4. If there is n fresh fd, meals will nt be as tasty as they are tday. (withut)
_____________________________________________________________
5. It wuld be funny t play ftball n Mars because f the lw gravity. (because)
_____________________________________________________________
6. Withut special bts, yu cannt walk n Mars. (if…nt )
______________________________________________________________
Answers:
1. Neil Armstrng tk his first flight at the age f six.
2. Yuri Gagarin became the first man t g int uter space when he was 27.
3. Peple might mve t anther planet in the future because f the rapid increase in ppulatin n the Earth.
4. Withut fresh fd, meals will nt be as tasty as they are tday.
5. It wuld be funny t play ftball n Mars because the gravity is lw.
6. If yu dn’t wear special bts, yu cannt walk n Mars.
Step 4 Presentatin
B Using bject clauses r simple sentences
1. Ask students t rewrite sme sentences.
We can rewrite sme bject clauses in simple sentences with prepsitins like f and abut.
The smell f the pills reminds them that fd n the Earth is tasty.
→The smell f the pills reminds them f the tasty fd n the Earth.
Are they sure that space travel will be very fast?
→Are they sure abut the fast speed f space travel?
注意：
常用动词和介词的搭配：
remind smebdy f…使某人想起……
be sure/certain abut… 对……确信
2. Have a cnclusin宾语从句→简单句
通过f和abut这样的介词将宾语从句转换为简单句。
·可以用介词 f 把宾语从句转换为简单句。
·可以用介词abut把宾语从句转换为简单句。
Step 5 Drills
Abut the planet Mars
Millie knws little abut the planet Mars. She is asking Daniel fr mre infrmatin. Rewrite Millie’s sentences using the wrds in brackets.
Millie: (1) Are yu aware hw far Mars is away frm the Sun?
Daniel: Yes. Mars is abut 142,000,000 miles away frm the Sun. It takes Mars abut tw Earth years t circle arund the Sun nce.
Millie: (2) Are scientists in agreement that living n Mars wuld be pssible fr humans in the future?
Daniel: N. But they’re wrking hard t learn mre abut Mars.
Millie: (3) D they think that the lw gravity n Mars might be a prblem?
Daniel: Yes, they d.
Millie: (4) Are yu aware what transprt culd be like n Mars?
Daniel: It culd be much better than that n the Earth. Hwever, scientists aren’t sure whether peple culd grw plants n Mars.
Millie: (5) I wnder hw many peple wuld like t mve t Mars. (6) I think peple shuld knw that life n Mars wuld be different frm that n the Earth.
1. Are yu aware _________________________________________ (distance)?
2. D scientists agree ___________________________________ (pssibility)?
3. Have they thught _____________________________________ (prblem)?
4. Are yu aware________________________________________ (transprt)?
5. I wnder ______________________________________________ (number).
6. I think peple shuld knw _____________________________ (differences).
Answers:
1. f the distance between Mars and the Sun
2. abut the pssibility f living n Mars fr humans in the future
3. abut the prblem f the lw gravity n Mars
4. f the transprt n Mars
5. abut the number f peple wh wuld like t mve t Mars
6. abut the differences between life n Mars and that n the Earth
Step 6 Presentatin
C Using defining relative clauses r simple sentences
1. Ask students t rewrite sme sentences.
We can rewrite sme defining relative clauses in simple sentences with prepsitins like with and in.
Peple might live in huses which have huge cmfrtable rms.
→Peple might live in huses with huge cmfrtable rms.
On Mars yu might see peple wh wear special bts.
→On Mars yu might see peple in special bts.
2. Have a cnclusin定语从句→简单句
通过with, in等介词将定语从句转换为简单句。
·可以用介词with把定语从句转换为简单句。
·可以用介词in把定语从句转换为简单句。
Step 7 Drills
Curius abut Mars
C1 Simn is writing abut Mars. Rewrite the defining relative clauses in simple sentences with prepsitin with r in.
1. Mars is a planet that has an envirnment similar t that f the earth.
___________________________________________________________
2. Astrnauts wh wear space suits and helmets might stay n Mars fr hurs.
____________________________________________________________
3. It is difficult t breathe n a planet that has much thinner than that n the Earth.
____________________________________________________________
4. On Mars there might be peple wh carry air tanks n their backs.
____________________________________________________________
Answers:
1. Mars is a planet with an envirnment similar t that f the Earth.
2. Astrnauts in space suits and helmets might stay n Mars fr hurs.
3. It is difficult t breathe n a planet with air much thinner than that n the Earth.
4. On Mars there might be peple with air tanks n their backs.
C2 Simn is interested in stries abut aliens. He even writes t aliens. Replace each f the underlined parts in his letter with anther expressin.
Dear aliens,
Humans are thinking abut mving t anther planet (1) because the pllutin n the Earth is very serius. Many peple are in n dubt (2) that life n Mars wuld be very interesting, but I am nt sure. We culd nt play ftball n Mars
(3) because f the lw gravity. Life wuld be bring fr me (4) if I culd nt play ftball. Maybe this prblem culd be slved by building indr playgrunds
(5) which have the same ftball fields as thse n the Earth.
By the way, wuld strangers be welcme? I hpe t hear frm yu sn.
Simn
Answers:
1. because f the serius pllutin n the Earth
2. abut interesting life n Mars
3. because the gravity is lw
4. withut playing ftball
5. with the same ftball fields as thse n the Earth
Step 8 Language pints
Are scientists in agreement that living n Mars wuld be pssible fr humans in the future? 科学家们一致认为人类将来生活在火星上是可能的吗?
agreement n.同意，协议 in agreement同意，一致
I’m glad we are in agreement abut ne thing, at least.
我很高兴我们至少能就一件事达成共识。
拓展: agree的用法
(1) agree with sb 同意某人
I can’t agree with yu mre.我非常同意你的看法。
(2) agree t sth 同意某事
D yu agree t the plan? 你同意这个计划吗？
(3) agree n sth 在某事上达成一致意见
They finally agreed n the design f the bridge.
他们最终在这座桥的设计上达成了一致意见。
(4) agree t d sth 同意做某事
They dn’t agree t marry their daughter t the man.
他们不同意把女儿嫁给那位男士。
Step 9 Hmewrk
1. Review the grammar we’ve learnt tday.
2. Finish the related exercises.
3. Preview Integrated skills & Study skills.
板书设计
Unit 4 Life n Mars
Grammar
状语从句→简单句
宾语从句→简单句
定语从句→简单句
at the age f
because f
withut短语
介词f
介词abut
介词 with
介词 in
教学反思