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(共21张PPT)
UNIT 4　INFORMATION TECHNOLOGY
单元典型句式结构讲解及对应练习
1.[教材原句]Once I play games for more than an hour,a bell rings to remind me that my time is up.
once 引导条件状语从句
归纳(1)once此处表示“一旦”,用以引导条件状语从句,如果主句用一般将来时态,once引导的条件状语从句应用一般现在时态代替将来时态。
(2)在once引导的条件状语从句中,如果从句主语和主句主语一致,且从句谓语动词含有be动词,则可将从句主语和be动词省去。
佳句
It was not until then did I get that once you get an opportunity or an idea that can move you towards your goals,you need to take action at once.(读后续写之主旨句)
直到那时我才明白,一旦你有了一个能让你朝着你的目标前进的机会或想法,你就需要立即采取行动。
随堂练习
单句语法填空
①　　　　　　 you have experienced something,you should learn from it and use the experience to grow and improve.
②Once 　　　　　　(find) the lost key,he opened the door and entered the room,relieved to be home at last.
③Once you start exercising regularly and taking care of your health,you
　　　　　　　　　(feel) better both physically and mentally.
Once
finding
will feel　
随堂练习
句式升级·背诵
④Once the problem is identified and analyzed,it should be addressed without delay.(写作话题之环境保护)
→　　　　　　　　　　　　　　　,the problem should be addressed without delay.(用省略结构改写)
Once identified and analyzed
2.[教材原句] There must have been an error.
must have been 表示推测
归纳
点津 表示对现在和将来的推测应用“can/may/might/could/must do”结构。
随堂练习
单句语法填空
①I have read your Weibo about the upcoming Music Festival to be held in our school,so you 　　　　　　have heard of it.
②If she hadn’t followed the doctor’s advice,her recovery might not
　　　　　　　　　　　　(achieve) as quickly.
③How expensive your air tickets are!You 　　　　　　have booked your flights in advance to take advantage of lower prices and better flight options.
④I’m surprised that Kim should 　　　　　　　　　(make) such great progress in her Chinese in such a short time.
must　
have been achieved　
should
have made
随堂练习
[写美]翻译句子·背诵
⑤科迪发现狗仍然躺在地上,认为它一定很长时间没吃东西了,所以他喂了它一些面包。
______________________________________________________________________________________________________________________
(读后续写之灵性动物)
Cody spotted that the dog was lying on the ground still,thinking that it must have eaten nothing for a long time,so he fed it some bread.
3.[教材原句] While the Internet can bring people closer together,it can also harm friendships.
while引导让步状语从句
归纳
佳句While Steven missed the best opportunity to be employed,he gained the golden honesty which was much more valuable.(读后续写之优秀品质)
虽然史蒂文错过了最好的被雇用的机会,但他获得了更为宝贵的诚实品质,这是无价之宝。
的伟大。
随堂练习
单句语法填空
①　　　 　　　 he failed to win the champion,his spirits won his opponent’s and all the audience’s respect and admiration.
②While 　　　　　　(listen) to music on her headphones,she felt inspired to write a poem that expressed her emotions.
③Pop music has a global audience 　　　　　　traditional folk music is often limited to regional listeners.

While/Although/Though
listening　
while
随堂练习
[写美]句式升级·背诵
④While the students were picking apples with the farmers,they developed a good relationship with them.(写作话题之社会实践)
→_________________________________________________________
_____________________________________(用省略结构改写)
While picking apples with the farmers,the students developed a good relationship with them.
4.[教材原句] You can stay in touch with friends no matter where you are or what you are doing.
no matter 引导让步状语从句
归纳
点津 no matter where/when/how/what/which等引导让步状语从句时可分别用wherever/whenever/however/whatever/whichever等代替。
随堂练习
单句语法填空
①No matter 　　　　　　you have years of experience or are just starting out,your resume should clearly highlight your skills and achievements.
②(2020天津卷)For years I wanted to do everything my elder brother Tyson did,but no matter 　　　　　　hard I tried,I was always the neglected (被忽略的) one.
③(2022全国甲卷)Knowing some tips will help ensure that you have an enjoyable meal with friends or family—no matter 　　　　　　you are in the world.
whether
how
where
5.[教材原句]Some users worry that they are spending so much time in virtual worlds that they are becoming afraid of meeting people in the real world．
so＋
such＋
随堂练习
①Kathy is so lovely __________ we all like to play with her．
②There is _________ much work to do that I won't be able to take off this year．
③It was ___________ bad weather that we stayed at home all the day．
④她太可爱了，我们都很喜欢她。
She is ________________ that we all like her very much．(such...that)
She is ______________ that we all like her very much．(so...that)
that
so
such
such a lovely girl
so lovely a girl
6.[教材原句]That's why I believe that books about foreign cultures or imaginary worlds are the best！
That's because...“那是因为……”，because后接原因。
That's why...“那是……的原因”，why后接结果。
The reason why...is that...“……的原因是……”，reason作主语时表语用that引导。
随堂练习
①He failed in the exam．That's _______ he didn't review．
②The reason ________ he was successful was that he had worked hard．
我刚才在帮老人买邮票。这就是我上学迟到的原因。
③I was helping the old man to get some stamps．
_______________________________________．
because
why
That's why I was late for school
谢谢

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