仁爱版2024年中考英语第一轮课本复习课件：九年级上册 Unit 4

(共32张PPT)
九年级上册 Unit 4
2024年中考复习专题
目
录
1
回归教材　知识梳理
综合训练
2
1
回归教材　知识梳理
辨析as soon as与as long as
知识点1
This method worked well at night as long as the weather was good and the stars could be seen.只要天气好，能看见星星，这个方法在晚上就奏效。（Unit 4 P87）
词组 含义 用法 例句
as soon as 一…… 就…… 引导时间状语从句，时态遵循“主将从现”原则，即主句是一般将来时，从句常用一般现在时。也遵循“主过从过”原则，即主句和从句都用过去时。 I will call you as soon as I get there.
我一到那里就给你打电话。
He got married as soon as he graduated.他一毕业就结婚了。
词组 含义 用法 例句
as soon as 尽快， 尽早 侧重于“极短时间内”，常构成as soon as possible或as soon as sb.can，在句中作状语。 I’ll finish the work as soon as possible/I can.我将尽快地完成工作。
as long as 只要 引导条件状语从句，相当于so long as。时态遵循“主将从现”原则。 You may use my dictionary as/so long as you don’t keep it too long.只要使用时间不太长，你可以用我的词典。
词组 含义 用法 例句
as long as 和…… 一样长 用于同级比较的句型中。 This ruler is as long as that one.
这把尺子和那把一样长。
长达…… 之久 for as long as＋一段时间 I have lived here for as long as 10 years.我已经在这儿住了长达10年之久。
　
1.Mr.Black will go home as soon as he 　finishes　 （finish） his work.
2.只要他明天来，我就告诉他这个好消息。（补全译文）
　As　 　long　 　as　 he 　comes　 tomorrow，I will tell him the good news.
finishes　
As　
long　
as　
comes　
as long as　as soon as
3. 　As soon as　 I walked into the room，I knew something was wrong.
4.We can achieve our dream 　as long as　 we don’t give up hope in the face of difficulties.
As soon as　
as long as　
It is（has been）＋时间段＋since从句
知识点2
It has been two days since we landed on Mars.我们登上火星已经两天了。（Unit 4 P94）
“It is（has been）＋时间段＋since从句”与“时间段＋has passed＋since 从句”可以互换，表示“自从……以来已经有多长时间了”。since后面的从句多用短暂性动词，通常用一般过去时。这两种句型可与相应的一般过去时态的句子进行转换。此外，部分短暂性动词可转化为相应的延续性动词或表状态的be＋名词/形容词/副词/介词短语等，与这两种句型构成同义句。如：
“他死了两年了。”有如下表达方式：
①It is（has been） two years since he died.
②Two years has passed since he died.
③He died two years ago.
④He has been dead for two years/since two years ago.
　
1.It has 　been　 （be） 10 years since the park was 　built　 （build）.
2.我到这儿已经一周了。（补全译文）
　It　 has been a week 　since　 I arrived here.
been　
built　
It　
since　
warn的用法
知识点3
One scientist warns that if robots start to think for themselves，they will no longer want to be our servants，but our masters.一名科学家警告说，如果机器人开始独立思考，它们就不再想做我们的仆人，而是做我们的主人。（Unit 4 P103）
　
1.Our headmaster warns us not 　to break　 （break） the school rules，or we’ll be punished.
2.The police have warned tourists against 　leaving　 （leave） the main tourist centers.
3.Some animals’ strange acts can warn people 　of/about　 danger.
4.Miss Wang often 　warns　 （告诫） us not to make friends with strangers online.
to break　
leaving　
of/about　
warns　
综合提升训练
一、阅读理解
A
难度系数：★★★
ChatGPT is back in the headlines！ OpenAI，the company behind the popular chatbot，has now introduced a powerful new language model：GPT-4.
On March 14，GPT-4 showed the world how smarter it is than the previous GPT-3.5.One of its best new features is that it can understand pictures.For example，if you show a picture of a phone using the wrong charger（充电器）.
But GPT-4’s developments don’t stop there.The new language model can code（用代码编写） classic games in a matter of minutes，and produce the code and layout for a website based on a hand-made drawing.It can also change the tone and style based on what you ask it to do.GPT-4 is much better than the older GPT at passing tests，GPT-4 did really well on a law school test with a score in the top 10 percent of test takers.But GPT-3.5 only got a score in the bottom 10 percent.
GPT-4 will also see greater use as a tool to power other apps and services.For example，the language learning app Duolingo plans to use GPT-4 in their upcoming Duolingo Max function.Users can learn language by talking with AI.Another app，Be My Eyes.
However，there are still problems with the new language model.GPT-4 still struggles to get completely correct answers，especially with newer information after September 2021.GPT-4 also sometimes “hallucinates（产生幻觉）”
（　A　）1.The writer introduces one of GPT-4’s features by 　　　 in Paragraph 2.
A.giving an example
B.making a survey
C.asking a question
A
（　B　）2.Which of the following abilities of GPT-4 are mentioned？
①understanding pictures
②coding classic games
③producing the layout for a website
④changing the tone and style
⑤getting completely correct answers
⑥powering other apps and services
A.①②③④⑤ B.①②③④⑥ C.①②③⑤⑥
B
（　B　）3.What is the correct structure of the passage？
　　 　
A. B. C.
B
（　C　）4.What does the passage mainly want to tell us？
A.No pains，no gains.
B.Knowledge is power.
C.Each coin has two sides.
C
B
难度系数：★★★★
Some people believe that humans could live on the planet Mars by the year 2100.Our own planet，the Earth，is becoming more and more crowded and polluted.It is hoped that people could start all over again and build a better world on Mars.Here is what life there could be like.
At present，our spacecraft are too slow to carry large numbers of passengers to Mars—it would take months.With the development of technology，by the year 2100，the journey might only take about 20 minutes in spacecraft that travel at the speed of light！ However，the spacecraft would travel really fast，so the journey to Mars might be quite uncomfortable.Many people would feel ill.
Humans can’t live without water，air or food.So far，nobody knows whether there would be enough water or air on Mars for people.Moreover，scientists are not sure whether plants could grow on Mars.Food would most probably be in the form of pills（药片） and would not be so tasty.
Compared with life on the earth，life on Mars would be better in some ways.People would have more space.They might live in houses with huge comfortable rooms.Also，robots would do most of their work so that they could have more time to relax.There would probably be no schools on Mars.Every student would study at online schools with “e-teachers”.
Life on Mars would be interesting and challenging.However，it may take hundreds of years to make it true.So the most important thing we need to do now is to protect our beautiful blue planet—the Earth！
（　A　）1.People would move to Mars because 　　　 .
A.the earth is crowded and polluted
B.they want to challenge themselves
C.flying to Mars would be fun
（　A　）2.The underlined word“spacecraft” means 　　　 .
A.Spaceships
B.hot-air balloons
C.space stations
A
A
（　B　）3.What would the flight to Mars be like by the year 2100？
A.Fast and enjoyable
B.Fast but uncomfortable
C.Slow and boring
（　C　）4.What’s the best title for the passage？
A.Schools on Mars
B.Food on Mars
C.Life on Mars
B
C
C
难度系数：★★★
In India，a farmer’s son，Naveen，along with three of his classmates created a low-cost cooling method for vegetable sellers. 　1　 “We built an air-cooled chamber（冷风室） at first.Then we used solar energy for electricity. 　2　 It requires sellers to charge（充电） it once a day，and then the machine depends on solar energy for power，” says Naveen.
A temperature of 5 to 10 degrees is required for the vegetables to remain fresh. 　3　 They’ve tried everything to put the use of this machine to those who want to sell milk too.These students have improved the invention in a creative way that the fridge of the machine could be kept with a temperature of 0 to 10 degrees. 　4　 “We had to make full use of our time on our studies and the invention.Once we had a meeting to introduce the project，only one hour was left for us because of homework.” Naveen added.
The sellers can offer the customers fruit and vegetables without losing their freshness.Not just in summer，but it can be helpful through the year in a country like theirs. 　5　 And we can put what we have learned to our life.
A.So the machine can work on its own.
B.These students have already gone a step ahead.
C.People tried many ways to invent the machine.
D.Just a small invention can influence the society greatly.
E.As students，it was hard for them to develop the machine.
F.That can help keep their vegetables fresh during hot weather.
1. 　F　 2. 　A　 3. 　B　 4. 　E　 5. 　D　
F　
A　
B　
E　
D　
四、任务型阅读 【核心素养：语言能力】
难度系数：★★★
Many of us have had the same “pleasant surprise”.After you mark a song as a favorite on a music app，it suggests songs of the same kind to listen to.In fact，this magic power depends on data（数据）.
Big data is a lot of sets of information that are put together so they can be used by a computer program.It can have different kinds of information from many sources（来源），such as information that comes from schools，companies，and governments.One set of data can have people’s names and addresses.Another set can have their likes and dislikes.
Big data can be used in many places.The government uses it to understand how many people travel on buses or trains.The information is then used to make bus and train systems panies use big data，too.It helps them understand who buys their products.For example，one company uses weather data to see when people eat the most ice cream.
Big data can be used for good reasons.Some hospitals use data to see if a baby who is born too early will get sick.The hospital can then take steps to take care of that baby.Big data can also be used for bad reasons.It can be used to see which kinds of people are likely to break the law or hurt others，even if they have not done anything wrong.
How can big data be used for good and bad things？ It is because the computer programs used to look at big data are written by people.Because they think in a certain way，they build a model of those ideas.These ideas are then used to look at the data.Sometimes，these ideas are helpful for people or businesses.Other times，bad ideas can cause problems for certain groups of people.
1.Different information is put together to 　form　 big data.
2.According to Paragraph 3，big data is widely used by the 　government and companies　 .
3.Paragraph 4 mainly talks about 　good and bad　 reasons to use big data.
4.People are able to enjoy their favorite things with 　the help of　 big data.
5.Big data will change our life because 　it has lots of information and can be used in many places（开放性答案，合理即可）.　
form　
government
and companies　
good and bad　
the help of　
it has lots of information and can be
used in many places（开放性答案，合理即可）.