外研版八年级下m4-u1课件

Instruction
press the blue button press the green button press the red button wait for thirty seconds connect the recorder to your computer
choose the ‘copy’ symbol
Module 4 Unit 1
If you want to record, press the red button.
What technology do you know?
computer mobile phone
camera
MP3
New technology
fridge
rocket
tape recorder plane car
call
policeman for help.
doesn’t rain (not
with me . If they
Press are
(be not) here,
(call) them.
(press) “delete” if you doesn’t like (not, like)
this message.
e.g. If it doesn’t rain tomorrow, come
to my home。
用动词的正确形式完成句子
1. 2. 3. 4. 5. We don’t go shopping if it rains (rain)
tomorrow.
If you If it
are
(be) in danger , ask (ask) the ,rain) tomorrow, go (go)
比一比，看一看哪个小 组最最棒
If you want to listen to music, choose__________. Mp3 mobile phone If you want to call others, choose_____________. If you want to keep the food fresh, choose__________. fridge
这些句子称为带有“if”的条件状语从句。 表示“如果……” 1. If 从句的构成： If从句＋祈使句 例:1) If you want to turn on the recorder, press the blue button. 从句 主句 2) If you want to record, press the red button. 从句 主句
2. If 从句的位置：if从句可以放在主句之前也可以放在主句 之后。
例： If you like it, print the photo.
从句 主句 主句 从句 Print the photo if you like it.
① if引导的条件状语从句是一个完整的句Leabharlann 子, 一定要有主语和谓语。
e.g. If the light isn’t on, wait a minute。
2.If you want to play back, press the green button.
3.If you want to record , press the red button. 4.If the red light doesn’t come on, wait for thirty seconds. 5.If you want to send your recording by email , connect the recorder to your computer. 6.If there`s no green light, choose the “copy” symbol.
Do you know how to use it？
CD recorder
Let’s listen to Sally and her friends，then complete the table.
Task Turn on the recorder Play back Record No red light Send recording by email No green light
请选择适当的词语填空, 有的需要变换形式。 come on, gentleman, turn on, copy, memory 1. Grandpa asked me to turn on the ______ radio because he wanted to listen to some latest news.
2. It’s wrong for you to copy Lily’s ____
homework.
3. Tim has got a great memory He can _______.
remember the words easily.
gentlemen 4. Ladies and _________, please welcome
5. Why do they think Chen Huan wants to
hear Sally, not Kylie?
Because Sally is going to have an
interview on Starsearch, but Kylie isn’t.
6. What do they decide to do? They decide to record Sally playing.
(说明) first.
3. Vivian sent me some ______ (录像) by videos
email just now.
4. There are sixty _______(秒) in a minute. seconds
5. Finally, he lent (借出) his camera to me. ___
our great singer, Sally!
5. —I’m going to have a concert tonight
in the People’s Hall.
— ________!You are the best singer. Come on
Copy these sentences.
1.If you want to turn on the recorder,press the blue button.
2. borrow, lend & keep ◆ borrow和lend词义相反。borrow意为 “借入”, 常见搭配是borrow sth. from sb.。lend意为“借出”, 常见搭配是lend sb. sth.或lend sth. to sb. ◆若表达长时间的“借”, 则要用延续性动 词keep, 不能用borrow或lend, 因为两者属 于短暂性动词。
2. If the red light doesn’t come on, wait for thirty seconds. come on (灯或机器)打开, 开动 e.g. The cooling unit hasn’t come on yet. 冷却装置还未工作。
come on还有很多种意思：
camera If you want to take photos, choose____________. computer If you want to play games, choose_____________.
If you want to listen to the tapes, tape recorder choose____________.
Exercises:
请根据句意及括号内所给汉语提示
写出所缺单词。
1. Could you please _____ (按) the button press
for me?
2. If you want to know how to use the
recorder, please read the __________ instructions
Find the clauses with “if”.
1.If you want to turn on the recorder,press the blue button.
2.If you want to play back, press the green button.
3.If you want to record , press the red button. 4.If the red light doesn’t come on, wait for thirty seconds. 5.If you want to send your recording by email , connect the recorder to your computer. 6.If there`s no green light, choose the “copy” symbol.
3. How do they know if it’s working? They play back the recording. 4. Why isn’t Sally playing on the recording?
Because she wants Kylie to play on the recording.
② if引导的条件状语从句的位置灵活, 可 以放在主句前, 也可以放在主句后。
e.g. A. If it is sunny next Sunday, wash
the car.
B. Tell him about it if he comes back.
③ if 引导的条件状语从句中，常用 一般现在时表示将来。