资源简介

(共20张PPT)
Unit 8 Let’s
Communicate!
Grammer Focus
Translation
1.如果你想解决这个问题，一个面对面的谈话效果最佳。
2.如果你不注意你的用语，发送短信会让事情变糟。
3.如果排练在晚上 7 点结束，我将会在 7 点 15 分来接你。
4.如果你保持冷静并道歉，这将会有帮助。
5.如果我去那里，我将会尝试所有美味的当地食物。
If you want to solve the problem, a face-to-face talk usually works the best.
Texting can make things worse if you are not careful with your words.
If the rehearsal ends at 7:00 p.m., I will 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
Read the sentences. Find more sentences with if-clauses in Section A.
lf 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.
这些句子由if引导的条件状语从句和主句构成。
if-clauses
if “如果，假如”，引导的条件状语从句表示在……条件下某事才能发生，从句是主句动作发生的前提或条件。
当从句在主句 ___ 时，用逗号隔开；当主句在前时，则______逗号；
前
不用
用法
If引导的条件状语从句包含零条件句和第一条件句。
一般表示普遍存在的事实、真理或习惯行为。
条件成立时，结果必然出现，不存在任何不确定性。
零条件句：
第一条件句：
用于表示在特定条件下可能会发生的情况。
结果的实现是有条件的，且这个条件有实现的可能性。
lf you want to solve the problem, a face-to-face talk usually works the best.
一般现在时
一般现在时
zero conditional sentence
零条件句
描述客观事实、自然规律、普遍真理或习惯性行为。
条件成立时，结果必然发生。不存在任何不确定性。
If + 一般现在时，主句 + 一般现在时。
e.g. If you heat water to 100°C, it boils.
如果你把水加热到100°C，它就会沸腾。
If the sun sets, it gets dark. 如果太阳落山，天就会变黑。
结构1:“主现从现”
客观事实
自然规律
the rehearsal ends at 7:00 p.m.,
If
I'll pick you up at 7:15 p.m.
you stay calm and say sorry,
If
it will help.
I go there,
If
I will try all the delicious local food.
从句
主句
特定条件
未来可能发生的情况
First conditionals 第一条件句
表示在特定条件下可能会发生的情况、结果或行为。
表达将来可能发生的条件和结果，结果发生的可能性较高。
If + 一般现在时，主句 (一般将来时)。
结构2：“主将从现”
用括号中所给单词的适当形式填空。
1. If it (be) sunny tomorrow, we (go) hiking.
2. She (call) you if she (have) time.
3. If you (not study) hard, you (not pass) the exam.
4. They (visit) the museum if they (have) free time.
5. If you (help) others, others (help) you.
is
will go
will call
has
don't study
won't pass
will pass
have
help
will help
Texting can make things worse if you're not careful with your words.
情态动词
一般现在时
If + 一般现在时，主句(情态动词may, might, can, must, should等的句子)
结构3：主情从现
1.Amy is so confident. She thinks she can do anything if she (try) her best.
2.If Mary (want) to lose weight, she should exercise more.
3.She wants to win.She must practise harder.(改为有if的复合句）
4.We can't finish the work on time.Tom doesn't help us.
tries
wants
If she wants to win,she must practise harder.
We can't finish the work on time if Tom doesn't help us.
结构4：主 祈 从现
If + 一般现在时，主句(祈使句)。
Put up your hand if you have any questions to ask.
Don’t wait for me if I am late.
1.Don't play football outside if it (rain) this afternoon.
2.Tell Jim the good news if you (meet) him tomorrow morning.
rains
meet
无人称主语
1. 借助“祈使句+and/or+句子（一般将来时）”句型来转换。
and 在句意上表示顺承，意为“那么，就”；
or 表示转折，意为“否则”。
e.g. 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。
借助 without 或 with 来转换条件状语从句。
e.g. 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。
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。
3.If you are late again, the teacher will be angry.(改为同义句)
late again, the teacher will be angry.
4. If you don't get enough sleep, you may feel tired easily.(改为同义句)
You may feel tired easily .
Don't
be
or
without
enough
sleep
转换
1. 借助“祈使句+and(那么，就)/or(否则)+句子（一般将来时）"句型来转换。
2.without表否定 ；with表否定
Summary
1.if表如果，引导的条件状语从句有零条件句和第一条件句。零条件句有 ；第一条件句有
.
2.做题步骤：①确定主句还是从句。if后跟着的是从句。②填从句： ；填主句：看意思，有无人称主语和条件关系。③时态原则：主将从现；主情从现；主祈从现
3.位置：
①主句在 ，从句在 ，中间 逗号
②从句在 ，主句在 ，中间 逗号。
主现从现
主将从现
主情从现
主祈从现
一般现在时
前
前
后
没有
后
有
1. If you come to my city, I’ll show you around. (______________)
2. We’ll finish at 7:00 p.m. if it’s on time. (______________)
3. If you want to make some new friends, this is a good chance.
(______________)
4. If it is still hard to talk, take a break. (______________)
5. If you can’t meet, just call your friend. (______________)
6. If you want to pass the exam, you must study hard. (____________)
主将从现
主将从现
主现从现
主祈从现
主祈从现
主情从现
用四个字标出主句和从句的时态：主现从现/主将从现/主祈从现/主情从现。
Practice
Match the two parts to make sentences.
1. If we 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
3b
1. If we 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
一个面对面的会议
right away立即;马上
主祈从现
主将从现
主情从现
主将从现
主将从现
主将从现
join sb for sth 与某人一起做某事
have difficulties (in) doing sth 做某事有困难
write down写下;记下
有好消息；news不可数
通过电话联系到她→reach v.联系;reach sb. by.... 通过...联系某人
尝试发短信；try doing
3c
Fill in the blanks with the correct forms of the verbs in brackets.
go
will see
drop
will give
start
will perform
Give
let
think
主将从现
主将从现
主将从现
无人称主语
Fill in the blanks with the correct forms of the verbs in brackets.
... If things go well, we will 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 will give you all the details about the reunion. But promise me you’ll think about it seriously.
=write sb. a letter 给某人写信
think about ... seriously
认真考虑.....
3c
进展顺利
how引导的感叹句作think的宾语
所有关于聚会的细节
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 will 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!
make a plan for...为....制定计划
think of 想到→想到一个合适的时间
Fill in the blanks with the correct forms of the verbs in brackets.
3c
给我打个电话
①talk to sb about sth；②training plan 训练计划
it's time for sb to do sth对某人来说是做某事的时候了
a good time (for sb) to do sth(某人)做某事的好时候
if引导的宾语从句
将下列句子改为含if引导的条件状语从句的复合句。
1. She wants to win. She must practise harder.
2. I am free at home. I will help my mum with housework.
3. Please wake me up. Betty comes back.
4. We can't finish the work on time. Tom doesn't help us.
5. We talk face to face. We will understand each other better.
If she wants to win, she must practise harder.
If I am free at home, I will help my mum with housework.
Please wake me up if Betty comes back.
We can't finish the work on time if Tom doesn't help us.
If we talk face to face, we will understand each other better.

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