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Unit 8 High-tech world
Lesson C Grammaring
（粤沪教版 2024）八年级
下
Learning objectives
0
Lead in
Presentation
2
Practice
Production
4
Summary
Assessment
6
Homework
1
3
5
7
By the end of the lesson, I will be able to...
1
2
3
understand the form and use of first conditional;
identify the structure of conditional sentences;
use conditional sentences to talk about possible future situations and results.
00
Learning objectives
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01
Lead in
Free talk.
What high-tech things do we use in our life
VR glasses
smartwatch
electric car
robot cleaners
01
Lead in
Look and answer.
What will the smart device do if the room is dirty
If my room ______ (get) dirty, it will _______________sweep up the dust.
gets
automatically
If my floor ______ (be) dirty, the robot ______________ (clean) it at once.
If I ______ (drop) crumbs on the floor, the smart vacuum __________ (pick) them up.
is
will clean
drop
will pick
01
Lead in
Look and answer.
What can you do if you want to listen to songs on the way home
If I __________ (walk) home and want to listen to my favourite songs, I ______ play them on it.
am walking
If I ______ (have) my smartphone with me, I ______ listen to my favourite songs on the way.
If the battery ____________ (not die) on my phone, I ______ play music during the whole walk.
can
have
can
doesn’t die
can
01
Lead in
Look and answer.
Will you take a driverless car to school
If you ______ (need) to take a taxi to go to school, ______ you choose a driverless car
need
If the driverless car ______ (be) safe and cheap, many students ______ take it to school
If there ______ (be) no human drivers in taxis, people ______ need to learn new safety rules.
will
is
will
are
will
01
Lead in
Look and answer.
Who won't be happy about self-driving cars
However, if self-driving cars __________ (become) more common, not everyone ______ be excited about them.
become
will
If self-driving cars ______ (take) over the roads, taxi drivers ______ lose their jobs.
take
will
If the technology ________________ (not improve) fast enough, people ______ still worry about safety problems.
doesn’t improve
will
1 If my room gets dirty, it will automatically sweep up the dust and dirt.
2 If I’m walking home and want to listen to my favourite songs, I can play them on it.
3 If you need to take a taxi to go to school, will you choose a driverless car
4 However, if self-driving cars become more common, not everyone will be excited about them.
Look and find.
Presentation
02
C1 Study the blue parts of the sentences and answer the questions.
Look and find.
Presentation
02
C1 Study the blue parts of the sentences and answer the questions.
1 If my room gets dirty, it will automatically sweep up the dust and dirt.
2 If I’m walking home and want to listen to my favourite songs, I can play them on it.
3 If you need to take a taxi to go to school, will you choose a driverless car
4 However, if self-driving cars become more common, not everyone will be excited about them.
Q1: What are the conditions and results in the sentences above
Q2: Does the if-clause use the present tense or the future
Look and learn.
Presentation
02
Conditional clause: if I do…, I will…
1 If my room gets dirty, it will automatically sweep up the dust and dirt.
2 If I’m walking home and want to listen to my favourite songs, I can play them on it.
3 If you need to take a taxi to go to school, will you choose a driverless car
4 However, if self-driving cars become more common, not everyone will be excited about them.
【条件从句】
If + 主语 + 动词(现在时态)
表示：
可能发生的未来情况
【结果主句】
主语 + will / can / may + 动词原形
表示：随之产生的结果
Look and learn.
Presentation
02
语序与标点对比
Conditional clause: if I do…, I will…
语序 结构图示 标点规则 例句
从句在前 If + 从句，主句 必须加逗号 If my room gets dirty, it will sweep the dust.
从句在后 主句 + if + 从句 不加逗号 It will sweep the dust if my room gets dirty.
Look and learn.
Presentation
02
Conditional clause: if I do…, I will…
时态对比
错误时态搭配
If my room will get dirty, it sweep the dust.
↑ ↑
从句用了将来时 主句缺少will/can
正确时态搭配
If my room gets dirty, it will sweep the dust.
↑ ↑
从句：现在时态（一般现在/现在进行） 主句：将来/情态动词
Look and learn.
Presentation
02
Conditional clause: if I do…, I will…
例句 1
条件从句（if 部分）：If my room gets dirty（一般现在时，三单变形）
结果主句（will 部分）：it will automatically sweep up the dust and dirt
If [条件] [will + 结果]
例句 2
条件从句（if 部分）：If I’m walking home and want to listen to my favourite songs（现在进行时 + 一般现在时）
结果主句（can 部分）：I can play them on it
If [条件] [can + 结果]
Look and learn.
Presentation
02
Conditional clause: if I do…, I will…
a possible situation
result
We use the conditional clause to talk about ___________________ and its_______.
For example:
If my room gets dirty, the robot cleaner will automatically sweep up the dust.
[if-clause: possible situation]
[main clause: result]
Look and learn.
Presentation
02
Conditional clause: if I do…, I will…
The if-clause
The if-clause usually uses ________________ to talk about a situation that may exist in _____________:
If ... (present tense)..., ... will / may / can ...
The if-clause can come before or after the main clause.
A comma (,) is needed when it appears before the main clause.
the present tense
the future
Look and learn.
Presentation
02
Conditional clause: if I do…, I will…
做题技巧
Step1: 先看已有部分，定时态
如果if从句用了现在时，主句必须写will/can + 动词原形。
如果主句用了will + 动词原形，if从句必须用现在时（注意三单）。
Step2:检查主谓一致和语法
检查动词三单、名词单复数，确保没有语法错误。
Practice
03
C2 Complete the sentences.
If I can take only one technological device to the desert, I ________________________________________.
If people use electric cars instead of gas-powered cars, the environment ________________________________________.
If I ________________________________________, I will call my parents with my smartphone.
If there ________________________________________, people will spend a lot of time washing clothes.
There will be serious problems if __________________________________.
will take a solar-powered smartphone
will become much cleaner
am in trouble / get lost
are no washing machines
the smart technology fails
Practice
03
C3 Combine the sentences with if.
You use a 3D printer. You create many different objects easily.
_______________________________________________________________
2.You connect to the internet. You have a lot of information.
_______________________________________________________________
3.You use virtual reality glasses. You feel like you are in a different world.
_______________________________________________________________
4.Your smartphone supports sound control. You control your smartphone without touching it.
_______________________________________________________________
_______________________________________________________________
5.You do not update your software regularly. Your computer is at risk of being hacked.
_______________________________________________________________
_______________________________________________________________
If you use a 3D printer, you will create many different objects easily.
If you connect to the internet, you will have a lot of information.
If you use virtual reality glasses, you will feel like you are in a different world.
If your smartphone supports sound control, you can control your smartphone without touching it.
If you do not update your software regularly, your computer will be at risk of being hacked.
读前后两句，判断逻辑关系
看句子是 “转折、原因、时间先后、还是条件假设”。
逻辑关系 连词 关键词提示
转折（虽然… 但是…） though 前后意思相反
原因（因为…） because 前果后因，解释原因
时间先后（在… 之前） before 表示动作顺序
条件假设（如果…） if 表示 “假设情况”
Practice
03
C3 Combine the sentences with if.
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VR glasses can offer new experiences on classic games, movies, and more. 1 ________ it hasn’t been long since this wave of virtual reality started, technology has already developed a lot. There are many reasons to pick one up 2 ________ some truly amazing things are VR-only.
Friendly reminder: 3 ______ you get into VR, read on to find our list of the best VR glasses and the PCs that support them. We have a little bit of something for everyone! 4 ______ you have any problem, feel free to contact us.
C4 Fill in the blanks with if, because, though and before.
Though
Because
Before
If
Production
04
Future Tech Life: If…Will… Presentation
Sentence Structure
If I use the ______, I will ______.
例：If I use the smart cleaner, I will save a lot of time.
If there is ______, the device will ______.
例：If there is dust on the floor, the robot will sweep it up.
If you ______, you can ______.
例：If you wear VR glasses, you can visit a virtual museum.
If the technology ______, our life will ______.
例：If driverless cars are common, our life will be safer.
Words Bank
driverless car（无人驾驶汽车）
virtual reality (VR) glasses（VR 眼镜）
3D printer（3D 打印机）
solar-powered device（太阳能设备）
smartphone /wearable tech（智能手机 / 可穿戴设备）
voice control（语音控制）
automatic（自动的）
save time /energy（节省时间 / 能源）
protect the environment（保护环境）
get lost /in trouble（迷路 / 遇到麻烦）
have more free time（有更多空闲时间）
at risk of being hacked（有被黑客攻击的风险）
become cleaner /safer（变得更干净 / 安全）
develop a lot（发展迅速）
Show time
Talk clearly (内容清晰)
Pronunciation(发音标准)
Body language(使用肢体语言)
Fluently(流利的)
Reasonable(理由合理)
Grade and share:
一、单词翻译：
present tense ____________________________
automatically ____________________________
driverless car ____________________________
self-driving car ____________________________
technological device ____________________________
结果 ____________________________
未来时态 ____________________________
扫地机器人 ____________________________
电动汽车 ____________________________
The phrase we have learned
Summary
05
一般现在时
自动地
无人驾驶汽车
自动驾驶汽车
科技设备
result
future tense
robot cleaner
electric car
二、句型改写（按要求改写句子）
I will choose a driverless car. I need to take a taxi to school.（用 if 合并句子）
_______________________________________________________________
People will not be excited about self-driving cars. They become more common.（用 if 合并句子）
_______________________________________________________________
_______________________________________________________________
You walk home and want to listen to songs. You can play them on your phone.（用 if 合并句子）
_______________________________________________________________
_______________________________________________________________
The phrase we have learned
Summary
05
If I need to take a taxi to school, I will choose a driverless car.
If self-driving cars become more common, not everyone will be excited about them.
If you walk home and want to listen to songs, you can play them on your phone.
三、用括号内动词的正确形式填空
If my room ______ (get) dirty, it _________ (sweep) up the dust.
If I ____________ (walk) home and want to listen to songs, I _________ (can play) them on my phone.
If self-driving cars _________ (become) common, not everyone _________ (be) excited about them.
If you ______ (need) to take a taxi, ______ you ______ (choose) a driverless car
If people ______ (use) electric cars, the environment ____________ (become) better.
The phrase we have learned
Summary
05
gets
will sweep
am walking
can play
become
will be
need
will
choose
use
will become
四、完成句子（用 if 条件句补全）
If I can take only one technological device to the desert, I__________________ ________________________________________.
If people use electric cars instead of gas-powered cars, the environment ________________________________________.
If I ________________________________________, I will call my parents with my smartphone.
If there ________________________________________, people will spend a lot of time washing clothes.
There will be serious problems if ______________________________________.
The phrase we have learned
Summary
05
will take my smartphone with me
will become much cleaner
get lost on the way home
are no washing machines
people do not care about the environment
Assessment
06
Self-assessment
I can understand the form and use of first conditional.
I can understand the form and use of first conditional；
I can use conditional sentences to talk about possible future situations and results.
Basic (基础)
Improving(提升)
Extend (拓展)
Homework
07
完成语篇相关的 10 道单词填空题，确保填写准确。
结合语篇内容，用本节课所学词汇、句型，写出 5 句和地震自救相关的句子。
制作 1 份地震自救英文小贴士（包含 3-5 条核心自救方法，可搭配简单图画）。
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