资源简介

(共24张PPT)
Let’s Communicate!
Section A
Grammar Focus
学习目标
通过本节课的学习，同学们能够:
1.通过观察Grammar Focus的对话,能够正确找出含有If…will…的句子，能够在
老师的引导下,通过观察、讨论、归纳等课堂活动,探究If...will...句型谈论事情结
果的语言规律,通过讨论这些句子的表意功能,对事情的结果进行预测并说出if引
导的条件状语从句的结构和作用。
2.通过小组活动,用if编写对话,体验小作家角色。
3.培养观察、总结归纳的能力。
Let’ enjoy a video.
Warm up
Do you remember the first lyric of this song
If you miss the train I’m on,
you’ll know that I am gone.
lead in
Look and say
It will be sunny tomorrow.
If it ____ sunny tomorrow, I _____ ______ mountains.
I will climb mountains
is will climb
It will be rainy the day after tomorrow.
I will watch TV at home.
If it ____ rainy the day after tomorrow, I _____ _____ ______ at home.
is will watch
TV
She will have a birthday party next weekend
She will wear a red dress.
If she____ a birthday party next weekend, she _____ ______ a red dress.
has will wear
3a
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.
if意为“______”，引导的从句在复合句中表示条件，做主句的__________，被称为条件状语从句，表示假如从句的动作发生，主句的动作就(不)会发生,表示对事情的结果进行________。
if引导的条件状语从句的用法和结构。
如果
预测
从句
类别 构成 例句
简单句 The Simple Sentence 由一个主语（或并列主语）和一个谓语（或并列谓语）构成的句子。 I get up at six in the morning.
My mother and I often go shopping.
Some students walk or ride bikes to school.
复合句 The Complex Sentence 由一个主句和一个或多个从句构成的句子。 What do you want to be when you grow up
I think (that) Screen City has the most comfortable seats.
句子的类型
状语从句是指句子用作状语时，起副词作用的句子。 状语从句根据其作用可分为时间、地点、原因、条件、目的、结果等从句。 状语从句一般由连词(从属连词)引导，也可以由词组引起。
1.While John was watching TV, his wife was cooking. （时间状语从句）
当约翰看电视时，他的妻子正在做饭。
2.He didn’t attend classes yesterday because he was ill. （原因状语从句）
他病了，所以他昨天没有来上课。
3.He got up so early that he caught the first bus. （目的状语从句）
他很早起床以便赶上第一班公共汽车。
4.We’ll start our project if the president agrees. （条件状语从句）
如果总统同意，我们将开始我们的项目。
状语从句
if引导的条件状语从句
在复合句中作条件状语的句子叫条件状语从句。 条件状语从句常用if来引导。If从句既可放在主句前，也可放在主句后。放在主句前，要用“,”与后面的主句隔开。
语法概述
if条件句放在前，逗号要放主句前。
if条件句表如果，主将从现是关键。
if引导的条件状语从句
含条件状语从句的复合句中主从句的时态
主句为以下情况之一时，条件状语从句用一般现在时：
（1）主句是一般将来时。
If it doesn’t rain tomorrow, we will go to the zoo.
（2）主句谓语部分含有情态动词（may, might, can, must, should等）。
If you eat bad food, you may fall ill.
（3）主句为祈使句。
If the light is red, wait for a minute.
巧学妙记
1. If it rains tomorrow, we _____ visit the museum.
A. don’t do B. won’t go to C. aren’t go to D. didn’t go to.
2. Will you go to the park if it ____ fine
A. will be B. was C. is D. /
3. If you __to school late, your teacher _____ angry with you.
A. come; are B. come, will be
C. will come; are D. will come; will be
4. If you _____ hard, you will ___ successful.
A. work, are B. works, is C. to work, be D. work, be
5. If I ____ too much TV, my mother will _______.
A. watch, angry B. watched, be angry
C. watch, be angry D. will watch, be angry
B
D
C
C
B
主将从现
【对点练习】
一、单项选择
4. If it _____ (rain) tomorrow, we _________ (not go) hiking.
1. Call me if Tina ______ (come).
2. She must see a dentist if she ____ (have) a toothache.
3. Have a good rest if you ____ (be) tired.
comes
has
are
rains
won’t go
主情从现
情态动词
主祈从现
动词原形
动词原形
主祈从现
二、用括号内所给词的适当形式填空
Grammar Focus
if
条
件
状
语
从
句
用法
表示主句动作发生
所需要的条件。
位置
主句在前，从句在后，
中间没有逗号。
从句在前，主句在后，
中间有逗号。
时态
主将从现
主情从现
注意
在条件状语从句中，
if的含义为“如果”，
时态是主将/情/祈从现。
当if的含义为“是否”时，
时态要根据实际情况选择。
主祈从现
if 条件句不一般,几个要点记心间；
条件句，放在前，逗号要居中间；
条件句表可能，主句多用将来时；
条件句表事实，主句常用现在时。
注意：
if还可以用于宾语从句中，表示“是否”，相当于 whether，引导宾语从句，时态需根据语境确定。
如：I don't know if he will come tomorrow. If he comes，I will tell you.我不知道他明天是否会来。如果他来，我就会告诉你。(前一个if表示“是否”，引导宾语从句； 后一个if表示“如果”，引导条件状语从句)
3b
Match the two parts to make sentences.
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 him 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
3c
Fill in the blanks with the correct forms of the verbs in brackets.
…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
will give
drop
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
Group work
Then discuss what the situations are and whom the information is for.
3c
A:The first one is an invitation to a reunion. Someone wants old friends to come back together. They ask friends to think about it and tell them if they can come. This message is for old friends.
B:The second one talks about a training plan for a team. The new season is coming soon. Someone wants to plan the training early because they think it will help the team do better. They ask team members to call and find a good time to meet. This message is for the team members.
Give your opinions.
Show Time
Perform properly
(表演到位)
Speak loudly and clearly with feelings
（言语饱含热情，大声且清晰）
Use correct language
（使用正确语言）
一、单项选择
1． I'm free tomorrow，I will help you tidy your room.
A．If B．So C．But D．Because
2．I think that we'll raise a lot of money if we a food festival.
A．will hold B．Holding C．hold D．holds
3．—Do you know if he to play tennis with us tomorrow
—I think he will come if he available.
A．comes；is B．comes；will be C．will come；will be D．will come；is
4．You can't go to the library you don't have a student ID card.
A．and B．if C．unless D．but
5．If the temperature below zero degree，water into ice.
A．drops；turns B．will drop；will turn C．will drop；turns D．drops；will turn
答案　1.A　2.C　3.D　4.B　5.D
当堂检测
二、用所给词的正确形式填空
1.If he _______(come) to the party, he will have a good time.
2.We don’t know if it ________(rain) tomorrow; if it _______(rain), we _________ (not go) out.
3.If it’s sunny tomorrow, Mary _________(visit) the Great Wall.
4.If you _____(come) at 4:00 in the afternoon, I __________ (begin) to
be happy at 3:00.
5.He will go out with you after he ________ (finish)his homework.
comes
will rain
rains
won’t go
will visit
come
will begin
finishes
THANKS
本课结束

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