资源简介

(共19张PPT)
Unit 8
Let's Communicate!
Section A Grammar Focus
通过语法表格，引导学生逐步全面掌握零条件句和第一条件句；
通过练习灵活运用if引导的条件状语从句。
学习目标
1
2
Let’s enjoy a song and then fill in the blanks.
____ you ___ sad, I ____ be here.
____ you ___ lost, I ____ hold your hand.
____ you _____ help, I ____ care through good times and bad.
____ we ______ our dreams under the stars, we ____ be strong.
____ you ______ and say I am here, you ____ find friends who are always near.
If
are
will
If
If
If
If
will
feel
need
share
smile
will
will
will
Today we will learn if-clauses!
Lead-in
Read the sentences. Find more sentences with if-clauses in Section A.
Translate all the sentences.
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
Presentation
Find the similarities(相似性) of these sentences.
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 条件句
What are the tenses of the main clause(主句) and the subordinate clause(从句)
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 引导的是从句
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.
一般现在时
一般现在时
带情态动词的一般现在时
一般现在时
一般现在时
一般将来时
一般现在时
一般将来时
一般现在时
一般将来时
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.
Question: Does the meaning of a sentence influence its tense
zero conditional sentence
零条件句
first conditional sentence
第一条件句
零条件句和第一条件句（ Zero and first conditionals）
Zero conditionals 零条件句，指表达客观真理（如科学事实）或习惯性动作的句型。
First conditionals 第一条件句，用于描述将来可能发生的情况。
Take another look at the tenses.
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.
Zero conditionals 零条件句
适用情况：客观真理 / 习惯性动作
1. 结构：
If + 一般现在时，主句 + 一般现在时（或祈使句）。
例：If you mix red and blue, you get purple.
如果混合红色和蓝色，就会得到紫色。
2. 特点：表达永恒真理、科学事实或反复发生的习惯，结果必然发生。
3. 时态：主从句均用一般现在时，强调 “必然结果”。
例：If water freezes, it becomes ice.（水结冰时会变成冰。—— 科学事实）
She gets angry if you lie to her.（如果你对她撒谎，她会生气。—— 习惯性反应）
First conditionals 第一条件句
适用情况：将来可能的情况
1. 结构：
If + 一般现在时, 主句 + will + 动词原形(或情态动词 /can/may/should 等)。
例：If it rains tomorrow, we will stay at home.
如果明天下雨，我们就待在家里。
2. 特点：表达 将来可能发生的条件和结果，结果发生的可能性较高。
3. 时态：从句用一般现在时表将来, 主句用 “will + 动词原形” 表将来的动作.例：If you study hard, you will pass the exam.
（如果你努力学习，就会通过考试。—— 可能的结果）
He may come if you invite him.
（如果你邀请他，他可能会来。—— 用情态动词表可能性）
Now, let’ s find more sentences with if-clauses in Section A.
If you come to my city, I’ll show you around.
If I go there, I’ll try all the delicious local food.
If you give a cat some milk, she will become your friend.
If she becomes your friend, she will probably follow you everywhere.
If she follows you everywhere, she may want to play games with you.
If you play games with her, you might get tired.
...
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. I think 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 him by phone, F. will you join me for dinner
3b
Practice
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.
... 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
围绕聚会相关的假设交流
邀请参加聚会的对象
situation
whom
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
团队训练计划的沟通
团队里一起参与训练计划讨论的成员
situation
whom
New words
meeting; line; detail; reunion; seriously; training
零条件句和第一条件句（ Zero and first conditionals）
Grammar
零条件句
1. 结构：If + 一般现在时，主句 + 一般现在时（或祈使句）。
2. 特点：表达永恒真理、科学事实或反复发生的习惯，结果必然发生。
3. 时态：主从句均用一般现在时，强调 “必然结果”。
第一条件句
1. 结构：If + 一般现在时，主句 + will + 动词原形（或情态动词 /can/may/should 等）。
2. 特点：表达 将来可能发生的条件和结果，结果发生的可能性较高。
3. 时态：从句用一般现在时表将来，主句用 “will + 动词原形” 表将来的动作。
Expressions
right away; drop sb a line
课堂总结
根据短文内容及括号内所给汉语提示补全短文。
I’m thinking about getting a job during this summer vacation. (1)___________________________________(如果我找到工作的话，我会赚一些钱). If so, I will have money to buy some things. I can buy some new clothes, some books or some music CDs. Or I can use the money to help some poor children. (2)___________________________________________(如果我找不到工作的话，我会去看望我爷爷奶奶).
If I get a job, I will make some money
If I don’t get a job, I will visit my grandparents
当堂检测
They live in a beautiful house near the beach. (3)_______________________________________(如果我和他们一起生活的话，我会很开心)! (4)_______________________________________(我不必每天七点起床). I will have more time to do my own things and I will eat lots of delicious food. What’s more, I will play on the beach. You know, (5)______________________________________(在那里玩总是很有趣).
If I live with them, I will be very happy
I won’t have to get up at 7 o’clock every day
playing there is always fun / interesting

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