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(共30张PPT)
2. Whose birthday is it
Unit 8
Let’s Communicate!
人教版 英语（八年级上册）
Section A
Grammar Focus
UNIT
Learning Objectives
01
02
03
1. 学生能够通过观察和分析含if条件句的例句，深入理解if条件句的基本结构及“假设—结果/建议”的逻辑关系。
2.学生能够掌握并准确运用if条件句完成句子匹配练习，在具体沟通场景中正确关联“假设情境”与“对应结果/建议”，提升语法逻辑的连贯性和运用熟练度。
3. 学生能够熟练运用if条件句完成“团聚邀请”“团队训练计划”等情境的文本填充，并围绕填充内容进行简短交流，在实践中灵活运用if条件句表达计划、请求与假设，展示语言应用能力。
2. Whose birthday is it
01 情景导入
Scenario import
Watch the video
Let’s sing and dance together!
If you ever find yourself stuck in the middle of the sea,
I'll sail the world to find you.
If you ever find yourself lost in the dark and you can't see,
I'll be the light to guide you.
这两个句子有什么共同点？
2. Whose birthday is it
02 学习理解
Learning to understand
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
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
闯关
第一关
第三关
第四关
第二关
第六关
战斗力：0
帮助哪吒通关
If it snows , we will make snowmen .
We will make snowmen if it snows.
如何划分主从句
找 if, 划从句，if后面是从句，if可放主句前，也可放其后。
tips
从句
从句
第一关
第三关
第四关
第二关
第六关
战斗力：0
帮助哪吒通关
判断主从句
1. If you miss the train I'm on, you will know that I am gone.
2. You will succeed if you work hard.
3. If she doesn't finish her homework, she can't watch TV.
4. Don't forget to lock the door if you go out.
从句
从句
从句
从句
找出下列句子的主从句
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
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
第一关
第三关
第四关
第二关
第六关
第五关
帮助哪吒通关
go swimming
go to the zoo
fly kites
If it’s sunny in summer, they will
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
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
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
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）
【拓展】
　第一条件句通常可与以下句型相互转换：
①祈使句+and/or + 一般将来时的句子.
eg: If you are quick, you won't be late for class.
=Be quick, and you won't be late for class.
=Be quick, or you will be late for class. 如果你动作快，就不会上课迟到。
②含有介词 with 或 without 的句子
eg: If there is no water, we can't live.
　 =We can't live without water. 如果没有水，我们就无法生存。
Grammar Focus
条件状语从句
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
2. Whose birthday is it
03 应用实践
Application Practice
Match the two parts to make sentences.
3b
1. If we can have a face-to
face meeting,
2. If I have good news,
3. If you need to leave,
4. If you can finish your
work early today,
5. If the old man has
difficulties in hearing,
6. If you can’t reach her
by phone,
A. try texting.
B. we’ll understand each other better.
C. you can write things down for him.
D. I’ll call you right away.
E. I’ll call a taxi for you.
F. will you join me for dinner
... 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.
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.
Discuss what the situations are and whom the information is for.
开头邀请：
能来的准备：
不能来的沟通：
结尾期待：
Hi! Lily, I’m writing to invite you to my birthday party. It will be on …
If you can join us, could you …. That will help me get ready better.
If you can’t make it, please …., no need to worry, just let me know!”
I really hope to see you there! If you have any questions, call me at …
句型模板
Next Saturday is your birthday! You want to invite your best friend Lily to your party. Write a note to her—tell her the time, and explain what to do if she can come, and how to contact you if she can’t.
任务要求
字数：50-80 词
必含：2 个以上 if 条件状语从句（分别对应 “能来” 和 “不能来”）
格式：留言条格式（开头写朋友名，结尾写自己名字和日期）
Hi Lily!
I’m so excited to invite you to my birthday party. It will be at 6 p.m. next Saturday at my home. If you can come, tell me if you like chocolate cake—I’ll ask my mom to make it! Also, you can bring your little sister if she wants to join. If you can’t come, just send me a WeChat message before Friday. I totally understand if you’re busy. I really hope we can celebrate together! Call me if you have questions.
Yours,
Lisa
2. Whose birthday is it
04 课堂小测
Exercise
1. If you exercise more, you (be) much healthier.
2. If it (rain) tomorrow, they (not play) soccer after school.
3. You should see a dentist if you (have) a toothache.
4. lf he (walk) to school, it (take) him too much time.
5. lf you (not go) to bed earlier, you (feel) tired in the morning.
6. lf it (not rain), he (play) basketball with me tomorrow.
will be
rains
won't play
have
walks
will take
don't go
will feel
doesn’t rain
will play
一.用所给词的正确形式填空
—Miss Zhang, what can I do to improve my English
—I think you should realize the ________ of learning English first.
A. idea B. opinion C. difficulty D. importance
2
Fu Xing will go to the science museum with us ________ she is free tomorrow.
A. before B. after C. if D. although
3
If you ________ about your problems with someone, you ________ halfway to solving them.
A. don’t talk; are B. won’t talk; are C. talk; will be D. will talk; will be
1
二。单项选择
1. As long as you take your mistakes _________ (serious), you can learn a lot from
them.
2. He will pass the driving test if he ___________ (not be) so careless.
3. _____ (add) some hot water if you think the tea is too strong.
4. Every time Tom meets __________ (difficulty), he always says to himself, “Yes,
I can!” and tries to solve them.
5. If it __________ this Sunday, we will go to the park. (not rain)
6. If you don’t listen carefully, you ____________ (not know) the answer.
seriously
三、用单词的适当形式填空。
isn’t / is not
Add
difficulties
doesn’t rain
won’t know
Homework
1. Memorize the new words and phrases.
2. Put what we have learned into practice and write some sentences
with if -clauses.
3. Finish the exercises.
2. Whose birthday is it
Thanks
for watching!

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