资源简介

(共29张PPT)
Unit 8 Let’s Communicate!
How do we communicate
Section A Grammar Focus
能够归纳并总结出真实条件句的句式结构特点、表意功能及其用法；能够根据假设情境匹配出完整的条件句。（学习理解）
01
能够根据所选情境与同伴创编对话，并在对话中正确使用条件句，实现语言知识在真实情境中的迁移运用。 （迁移创新）
03
能够根据文本形态及内容推断出与之相关的交流方式与交际情况，并在语境中正确运用条件句描述未来可能发生的事情。（应用实践）
02
Read the sentences. Find more sentences with if-clauses in Section A.
If you want to solve the problem, a face-to-face talk usually works the best.
Texting can make things worse if you’re not careful with your words.
If the rehearsal ends at 7:00 p.m., I’ll pick you up at 7:15 p.m.
If you stay calm and say sorry, it will help.
If I go there, I will try all the delicious local food.
3a
观察你画出的if 从句，它们在句子中的位置一样吗？
一类是 if 从句在句首的（此时从句后加逗号）
一类是 if 从句在句末的（此时从句前可不加逗号）
If you want to solve the problem, a face-to-face talk usually works the best.
Texting can make things worse if you’re not careful with your words.
If the rehearsal ends at 7:00 p.m., I’ll pick you up at 7:15 p.m.
If you stay calm and say sorry, it will help.
If I go there, I will try all the delicious local food.
if 从句
主句
主句和从句时态有什么规律
主将从现
一般现在时
情态动词
描述 “条件”
描述 “结果”
一般现在时
一般现在时
一般现在时
一般现在时
一般将来时
一般将来时
一般将来时
一般现在时
Grammar focus
特殊情况：主句表达 客观事实、习惯性结论
第一关
第三关
第四关
第二关
第六关
第五关
主句 ，从句一般现在时。
简称____________
结构1：主 将 从现
主句
主句
从句
从句
主从句的构成有什么特点？
If you are sad, I will be here.
If you feel lost, I will hold your hand.
一般将来时
主将从现
第一关
第三关
第四关
第二关
第六关
第五关
If you help me, I can finish it on time.
If you get up late, you must hurry up.
主句有 ，从句一般现在时
简称：____________
结构2：主情从现
主从句的构成有什么特点？
情态动词
主句
主句
情态动词
主情从现
闯关
第一关
第三关
第四关
第二关
第六关
帮助哪吒通关
practice 1
1. If you up late, you can take a taxi.
A. get B. got C. getting D. gets
2. If he to pass the exam, he must be careful.
A. want B. wants C. will want D. wanted
3. She should see a doctor if she a cold.
A. had B. has C. have D. will have
第一关
第三关
第四关
第二关
第六关
If you go to London, visit the Science Museum.
If you want to be a writer, read more books.
主句 ,从句一般现在时
简称：____________
结构3：主 祈 从现
主句
主句
从句
从句
主从句的构成有什么特点？
祈使句（V.原）
主祈从现
第一关
第三关
第四关
第二关
第六关
帮助哪吒通关
1. ______ hard if you want to pass the exam,
A. Work B. To work C. Working D. Worked
2. If he ____ back, tell me.
A. comes B. will come C. come D. may come
3. If you _____ Beijing tomorrow, call me.
A. will reach B. reached C. reach D. is reaching
practice 2
条件状语从句
零条件句
描述客观事实、自然规律、普遍真理或习惯性行为。
If + 从句时态 ，主句 .
一般现在时
一般现在时
If you want to solve the problem, a face-to-face talk usually works the best.
If plants don’t get enough sunlight, they turn yellow slowly.
If you heat water to 100°C, it boils.
类型 例句 从句时态 主句时态
基础结构 If you stay calm, it will help.
特殊情况 1 If you need help, call me.
特殊情况 2 If you finish early, you can go home.
特殊情况 3（客观结论） If you mix red and blue, you get purple.
一般现在时
一般现在时
一般现在时
will + 动原
祈使句（动原)
情态动词（can/may 等）
Summary
if条件状语从句
一般现在时
一般现在时
条件状语从句
句型转换
借助“祈使句+ and/or +句子（一般将来时）”这一句型来转换。and 在句意上表示顺承，意为“________”；or 表示转折，意为“_____”。
那么，就
否则
If you get up early, you’ll catch the school bus.
= Get up early, and you’ll catch the school bus.
= Get up early, or you won’t catch the school bus.
早点起床，你就会赶上校车。
条件状语从句
句型转换
借助 ________ 或 _____ 来转换条件状语从句。
without
If there is no sunshine, plants will die.
=Plants will die without sunshine.
如果没有阳光，植物将会死亡。
with
If you help me, I’ll get better grades.
=With your help, I’ll get better grades.
如果你帮助我，我将取得更好的成绩。
条件状语从句
句型转换
借助 ______________ 或 __________来转换条件状语从句。
You will succeed if you practice.
=You won’t succeed unless you practice.
除非你练习，否则不会成功。
unless=if not
You can borrow my book if you return it on time.
=You can borrow my book as long as you return it on time.
只要你按时归还，就可以借我的书。
as long as
If it rains, we will cancel the picnic.
You can join us if you finish your homework.
I wonder if he will come to the party.
Could you tell me if the shop is open today
if宾语从句（表是否）
if条件状语从句（表如果）
这两组句子里的if，含义一样吗
从句的位置，主句时态有什么不同？
if引导的宾语从句 if 引导的条件状语从句
例句
含义
位置
时态
是否
如果
主句现在，从句随便
主句过去，从句随变
“主将从现”
I wonder if it will rain tomorrow.
I wondered if he was free.
If it rains, I will stay at home.
I will stay at home if it rains.
易混淆点对比（if 宾语从句 vs if条件状语从句）
句首（加逗号）/ 句末
主句后（不加逗号）
If you don’t understand, you can ask the teacher. （ ）
She asked if you could help her with the project. （ ）
If it is fine tomorrow, we will have a picnic. （ ）
Do you know if there is a library near here （ ）
You will make progress if you keep practicing. （ ）
请判断下列句子中if引导的是条件状语从句还是宾语从句，将答案填在括号内。
条件状语从句
条件状语从句
条件状语从句
宾语从句
宾语从句
03
Practice
Match the two parts to make sentences.
1. If we can have a face-to-face meeting， A. try texting.
2. If I have good news， B. we′ll understand each other better.
3. If you need to leave， C. you can write things down for him.
4. If you can finish your work early today， D. I′ll call you right away.
5. If the old man has difficulties in hearing， E. I′ll call a taxi for you.
6. If you can′t reach her by phone， F. will you join me for dinner
3b
... If things ____________ (go) well, we ____________ (see) all those old faces again. Just think how great it will be! If you think you can come, ____________ (drop) me a line and I ____________ (give) you all the details about the reunion. But promise me you’ll think about it seriously .
Fill in the blanks with the correct forms of the verbs in brackets. Then discuss what the situations are and whom the information is for.
go
will see
drop
will give
3c
Hey, it’s me. I wanted to talk to you about the training plan for our team. The new season is coming, so it’s time to make a plan for our training. If we ___________ (start) earlier this year, I think we _____________ (perform) better. ___________ (give) me a call and ___________ (let) me know if you ___________ (think) of a good time for everyone to meet. Talk to you soon!
start
will perform
Give
let
think
drop me a line
给我写封短信
... If things ______(go) well, we _________ (see) all those old faces again. Just think how great it will be! If you think you can come, _______ (drop) me a line and I _________ (give) you all the details about the reunion. But promise me you’ll think about it seriously .
go
will see
drop
will give
An invitation to a reunion party.
Old friends who haven't seen each other for a long time.
Fill in the blanks and discuss what the situations are and whom the information is for.
Hey, it’s me. I wanted to talk to you about the training plan for our team. The new season is coming, so it’s time to make a plan for our training. If we _______(start) earlier this year, I think we _________ (perform) better. _______ (give) me a call and _____ (let) me know if you _______ (think) of a good time for everyone to meet. Talk to you soon!
start
will perform
Give
let
think
A team training plan for the new season
Teammates in the sports team.
Fill in the blanks and discuss what the situations are and whom the information is for.
Summary
if-clause
if…
will…
if sb do sth,
sb will do sth
If sb do sth, sb. will do sth.
Sb will do sth if sb do sth.
Summary
Exercise
1. 如果明天不下雨，我们就去野餐。
If it _____________ (not rain) tomorrow, we _________ (go) on a picnic.
2. 如果你努力学习，你就能通过考试。
If you ______ (study) hard, you _________ (pass) the exam.
3. 如果你见到他，请告诉他给我回电话。
If you ______ (see) him, ______ (tell) him to call me back.
一、完成句子。
doesn’t rain
will go
study
can pass
see
tell
二、翻译句子
1. 如果明天有会议，我会马上通知你。
If there is a meeting tomorrow, I will inform you right away.
2. 如果你需要帮助，就给我写封信。
If you need help, drop me a line.
3. 如果他认真对待训练，他会进步很快。
If he takes training seriously, he will improve quickly.
4. 如果我们忘记了聚会的细节，就查看邀请函。
If we forget the details of the reunion, check the invitation.
Homework
Homework
Need to do:完成练习册
Choose to do:查找英文歌曲或电影台词中的 if 从句，抄写 3 句并分析类型和时态。

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