课件11张PPT。第十三讲状语从句 中考中主要考查时间、原因、条件、比较、结果和让步状语从句的基本用法，尤其应注意当主句为一般将来时时，时间和条件状语从句用一般现在时。【热点考向一】 表时间和原因的状语从句1．时间状语从句表示主句动作发生的时间，引导这种从句的连词有when，before，after，as，while，till，until，since等，起连接作用的短语as soon as等。在时间状语从句中，当主句是一般将来时或祈使句表示将来的意义时，时间状语从句用一般现在时。
如：I'll let you know as soon as she comes.她一来，我就会让你知道。
Jane didn't go to bed until she finished her homework.简直到完成作业后才睡觉。2．原因状语从句用来说明原因，引导这种从句的词有连词because，since，as等。这三个词的语气由because到as逐渐减弱。
如：I won't go with you because I am busy doing my homework now.我不会跟你去，因为现在我正忙着做作业。
As the weather was fine，we decided to play football.天气很好，我们决定去踢足球。例1：Fresh food is good for you.But you have to wash it first ________(因为)sometimes it's a little dirty.(2015，江西)
解析：“because”引导原因状语从句。
例2：—May I use your dictionary?
—Of course.But please return it to me ________(在……之前)you leave.(2015，长沙)
解析：“before”引导时间状语从句。becausebefore【热点考向二】 表条件和让步的状语从句
1．条件状语从句常用连词if，unless等引导。if，unless引导的条件状语从句中，当主句是一般将来时或祈使句表示将来的意义时，时间状语从句用一般现在时表示将来。
如：Will you come if he comes here? 如果他来，你会来吗？
If it rains tomorrow，we'll stay at home.如果明天下雨，我们会待在家里。2．让步状语从句用从属连词though，although引导。
注意：though/although与but在句中不能同时出现。
如：We had to go on walking though we were really tired.尽管很累了，但是我们还得继续走。
Although he is not rich，he lives happily.尽管他不富有，但是他生活得很幸福。例3：I always believe that nothing is difficult ________ we try our best to do it.(2015，重庆B卷)
解析：“if”引导条件状语从句。
例4：—What do you think of your Junior Middle school life?
—I think it is colorful，______________ I am always busy.(2015，安徽)
解析：前后句意是转折关系，“though/although”引导让步状语从句。if though/although【热点考向三】 表目的和结果的状语从句
1．目的状语从句表示主句的动作发生的目的，这种从句由连词so that，in order that等引导，so that或in order that引导的目的状语从句中常常要用情态动词may，might，can，could，will，would或should等。
如：Please speak loudly so that everyone can hear you.请大声说，以便每个人都能听见你说话。
He got up very early this morning in order that he could catch the first bus.为了能赶上第一班公交车，他早上起得很早。2．结果状语从句表示主句的动作所引起的结果，这种从句由such...that，so...that，so that等引导。such修饰名词，而so修饰形容词或副词。
如：The film isn't so interesting that nobody likes it.这部电影不是那么有趣，没人喜欢它。
It was such a cold day that nobody wanted to go out.天气那么冷，没人想出去。
注意：so...that...句型的否定形式可用简单句too...to...或not...enough to代替。
如：He is so young that he can't go to school.
＝He is too young to go to school.
＝He is not old enough to go to school.他太小了不能上学。例5：—Have you seen the film Where Are We Going，Daddy?
—Yes，it's quite an interesting film ________(以致于)I have seen it twice.(2015，安顺)
解析：句子前后为因果关系，“so that”引导结果状语从句。so that课件18张PPT。第十三讲 状语从句一、用所给词的适当形式填空。
1．It's been five years since we ______ (meet) last time.
2．I met an old friend of mine while I ______________ (walk) in the street.
3．I __________(not go) to bed until the program is over.
4．—Will you come and stay with us for a while when you ________ (finish) your homework?
—Yes，I will.
5．Although it was raining，they still _________ (work) in the fields.metwas walkingwon't gofinishworked6．While the girls _____________ (sing) under the tree，their mothers were talking with each other.
7．We ________________ (not finish) the work yet，so we have to stay here.
8．We won't go to the park if it _______ (rain) tomorrow.
9．I ________ (call) you as soon as I arrive at the airport tomorrow.
10．Sometimes，you _________ (know) the true value of a moment until it becomes a memory.were singinghaven't finishedrainswill callwill know 二、根据中文提示填写单词。
11．Don't promise anything ________(除非) you are one hundred percent sure.
12．The meeting didn't start ______(直到) everyone was here.
13．He got a job at the airport _______(在……之后) he left school.
14．—Alan! Why are you so late?
—Sorry! ______(当……的时候) I was walking home，I met one of my relatives.
15．You can use English or Chinese ___(如果) you travel in Singapore.unlessuntilafterWhenif16．Liwei is so young ______(以至于……) he can't go with us.
17．I got up very late this morning，____(所以) I was late for class.
18．They develop their skills __________(以便) they can do things better and better.
19．It will be two years ________(在……之前) we see each other again.
20．My uncle has taught in this school _______(自……以来) he was twenty years old.thatsoso thatbeforesince三、阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空白处填入一个适当的词，或使用括号中词语的正确形式填空(每空不多于3个单词)。
A Survey：What Do You Think of Beijing? Traffic: 21.__________ the traffic is always busy, there are enough public transport services 22.________ that people can go anywhere easily.
People：23._________ many people in Beijing don't speak English, all the Beijing people are very nice.
Environment：I think Beijing has too much traffic. I wish people would walk or ride bicycles instead of 24._________(drive) cars 25._________ it is really necessary.AlthoughsoAlthoughdrivingunless Park：The parks in Beijing are very beautiful. I hope there are more parks so 26.______ more people can enjoy the fresh air there.
Food：The food is delicious, so the restaurants are always crowded. 27.________ I learn to cook, I won't be able to enjoy tasty Chinese food 28.______ I go back to the USA.
Hotels：The hotels are comfortable 29. __________the rooms are small.
Shopping：I like shopping in Beijing. The shop assistants are always warm and helpful, 30. _________ they have to serve a lot of people every day.thatUnlesswhenalthoughalthough四、阅读下面短文，掌握大意，然后从各题所给的四个选项中选出一个最佳选项。
An old woman had two large pots(罐), on each end of a pole(扁担)．She carried the pole with the pots __31__ her neck.
One of the pots had a crack(裂缝) in it __32__ the other pot was perfect and always full __33__ water.At the end of the long __34__ from the well(井) to the house，the cracked pot arrived only half-full.
For two years，this happened daily，with the woman bringing home only __35__ pots of water.Of course，the perfect pot was __36__．But the poor cracked pot was ashamed of its own imperfection. One day，the cracked pot spoke to the woman __37__ the well，“I am ashamed of myself __38__ this crack in my side causes water to leak out all the way back to your house.”
The old woman smiled，“Did you notice that there are flowers on your side of the path，but not on __39__ pot's side？That's __40__ I have always known about your crack，I planted flower seeds(籽)on your side of the path.And every day __41__we walk back，you __42__ them.”She added，“For __43__ years I have been able to pick these beautiful flowers to decorate(装饰) the table.Without you，being just the __44__you are，I would not have this beauty.”
Each of us has our own cracks.But it's these __45__ that make our lives together so interesting and meaningful. （ ）31.A.cross B．across C．past D．through
（ ）32.A.while B．and C．when D．if
（ ）33.A.with B．in C．of D．at
（ ）34.A.travel B．ride C．walk D．trip
（ ）35.A.one or two B．one and a half C．two D．half and one
（ ）36.A.proud B．sad C．happy D．worried
BACCBA （ ）37.A.with B．from C．by D．in
（ ）38.A.so B．when C．while D．because
（ ）39.A.other B．the other C．another D．others
（ ）40.A.so B．when C．while D．because
（ ）41.A.while B．till C．until D．that
（ ）42.A.water B．see C．visit D．understand
（ ）43.A.many B．a few C．two D．three
（ ）44.A.road B．side C．path D．way
（ ）45.A.decorations B．seeds C．flowers D．cracksCDBDAACDD五、阅读下面材料，从每题所给的A、B、C、D四个选项中选出最佳选项。
Since the 1970s，scientists have been searching for ways to link the brain with computers.Brain-computer interface (BCI) technology could help people with disabilities send commands to machines.
Recently，two researchers，Jose Millan and Michele Tavella from the Federal Polytechnic School in Lausanne，Switzerland，demonstrated(展示) a small robotic wheelchair directed by a person's thoughts.
In the laboratory，Tavella operated the wheelchair just by thinking about moving his left or right hand.He could even talk as he watched the vehicle and guided it with his thoughts. “Our brain has billions of nerve cells.These send signals through the spinal cord(脊髓) to the muscles to give us the ability to move.But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles.”Tavella says.“Our system allows disabled people to communicate with external world and also to control devices.”
The researchers designed a special cap for the user.This head cover picks up the signals from the scalp(头皮) and sends them to a computer.The computer interprets the signals and commands the motorized wheelchair.The wheelchair also has two cameras that identify objects in its path.They help the computer react to commands from the brain. Prof.Millan，the team leader，says scientists keep improving the computer software that interprets brain signals and turns them into simple commands.“The practical possibilities that BCI technology offers to disabled people can be grouped in two categories: communication，and controlling devices.One example is this wheelchair.”
He says his team has set two goals.One is testing with real patients，so as to prove that this is a technology they can benefit from.And the other is to guarantee that they can use the technology over long periods of time.（ ）46．BCI is a technology that can __ __．
A．help to update computer systems
B．link the human brain with computers
C．help the disabled to recover
D．control a person's thoughts
（ ）47.How did Tavella operate the wheelchair in the laboratory?
A．By controlling his muscles.
B．By talking to the machine.
C．By moving his hand.
D．By using his mind.BD（ ）48.Which of the following shows the path of the signals described in Paragraph 5?
A．scalp→computer→cap→wheelchair
B．computer→cap→scalp→wheelchair
C．scalp→cap→computer→wheelchair
D．cap→computer→scalp→wheelchair
（ ）49.Which of the following would be the best title for the text?
A．Switzerland，the BCI Research Center
B．New Findings About How the Human Brain Works
C．BCI Could Mean More Freedom for the Disabled
D．Robotic Vehicles Could Help to Cure Brain InjuriesCC六、根据短文内容和括号内所给汉语意思，写出空白处各单词的正确形式(每空一词)。
Last year, I went to Glasgow for my six-month English course. It was my first time to be in a new city, so everything was very fresh. My heart was full of 50.________(能量). After having spent one day in the town 51.________(中心), I made a 52._________(决定) to know more about the place by walking around it. And I wondered if I could 53.______(解决) any problem all by 54.______(我自己)．energycenterdecisionsolvemyself My special trip began. There was so 55.__________(多) to see all the way. I enjoyed lots of fantastic 56._______(风景) along the roads. Then I found fewer and fewer houses and a green farm could be 57.________(看见) in front of me. I had been in the countryside!
I had to ask the way. After I told a friendly man what had happened, he 58.________(摇动) his head without a word. Oh! He was deaf. I thanked him 59.________(有礼貌地) and walked on. “Take it easy！” I thought, “Find another man, and maybe he will be helpful.”muchsightsseenshookpolitely
