(6)Unit 6 TV programmes—九年级英语牛津译林版上册课前导学
课前预习
______________ 没事可做
______________ 真实事件
______________ 最新信息
______________ 报道不同的运动
______________ 有危险
______________ 收到一条信息
______________ 实现你的梦想
______________ 浪费时间
______________ 被逼着去……
______________ 有机会做某事
______________ 对……不感兴趣
______________ 请求帮助
______________ 报警
重点语法:
If讲解总结:
一、if作为连词,引导条件状语从句,它表示的意思是“假如”“如果”等。在复合句中如果主句用将来时,则if引导的状语从句用一般现在时。例如:
1. If it doesn't rain, we will go to the park next Sunday. 如果天不下雨,下周星期天我们将去公园。
2. If you ask him,he will help you.如果你求他,他将会帮助你。
二、if还可以引导让步状语从句。这时if当作“即使是”,“虽说”解。例如:
1. If she's poor,at least she's honest. 虽说她很穷,但至少她还是诚实的。
2. If I am wrong,you are wrong, too. 即使说我错了,那么你也不对。
3. I'll do it, even if it takes me all the afternoon. 虽然会花费我一下午的时间,我还是要做这事。
三、if作为连词还可以引导宾语从句。引导宾语从句时和whether意思相同。例如:
1. Lily asked if / whether she liked it. 莉莉问她是否喜欢它。
2. She asked if / whether they had a cotton one. 她问是否他们有一件棉织的。
四、if引导时间状语从句,当if做“当”或“无论何时”解而不含有条件之义时,if从句中的时态与主句中的时态相同。例如:
1. If you mix yellow and blue,you get green.你将黄色与蓝色混合,便会得到绿色。
2. If she wants the servant,she rings the bell.每当她需要仆人时,她便按铃。
五、if后接否定动词,用于感叹句中,表示沮丧、惊奇等。例如:
I. Well,if I haven't left my false teeth at home!真倒霉,我把假牙丢在家里了!
2. And if he didn't try to knock me down!(What do you think he did!He tried knock me down!)你猜他想做什么 他想把我撞倒!
六、if与其它一些介词的连用。
首先,as与if连用,它的意思是:“仿佛、好像”同样引导从句。例如:
1. It isn't as if we are rich.(We are not rich.)我们不像富有的样子。(即我们不富有)
2. It isn't as if he doesn't know the ruler.(i.e.He does know the rulers.)他不像不懂规则的样子。(即他懂得规则)
另外as if还可以引导感叹句。例如:
As if I would allow it!(i.e.I would certainly not allow it!)好像我会答应似的!(我才不会答应哩!)
其次, if与only连用。常表示愿望或一个未实现的条件,尤其用于感叹句中。例如:
1. If only he arrives in time!他若能及时到达就好了!
2. If only she would marry me!但愿她能嫁给我!
3. If only she had known about it!(But she didn't know.) 她那时要是知道(但她不知道)这事就好了!
七、unless引导的条件状语从句
unless的意思是"如果不,除非"。可与if... not互换。
You will fail in English unless you work hard.
你英语考试会不及格的,除非你更加努力。
You will fail to arrive there in time unless you start earlier.
如果你不早点动身,你就不能及时赶到那儿。
Unless it rains, the game will be played. 除非下雨,比赛将照常进行。
二、预习自测
1.When I came into the room, I found _____ on the floor, unable to move.
A. him lying B. him lie C. he lying D. he lie
2.I won't go to the movies this afternoon _____ I'm free.
A. or B. unless C. because D. than
3.—I didn't hear you come in just now.
—That's good. We tried _____ any noise, for you were sleeping.
A. not make B. not to make C. to make D. making
4.—Let's go cycling if it _____ fine this Sunday.
—Sounds great. But nobody knows if it _____.
A. is; rains B. is; will rain C. will be; rains D. will be; will rain
5.Don't lose heart. If you keep working hard, you _____ some day.
A. will succeed B. succeed C. succeeded D. have succeeded
答案以及解析
一、
have nothing to do
real-life events
up-to-date information
cover different sports
be in danger
receive a message
realize your dream
a waste of time
be pushed into...
have a chance to do sth
have little interest in ...
ask for help
call the police
二、
1.答案:A
解析:句意:当我进入房间时,我发现他正躺在地上,无法动。find sb. doing sth.发现某人正在做某事,find sb.do sth.发现某人做了某事,根据"When I came into the room"可知,此处表示“我”进入房间时,发现他正躺在地上,故选A。
2.答案:B
解析:句意:除非我有空,否则今天下午我不会去看电影的。or否则,或者;unless除非;because因为;than比。根据题干可知,应用unless引导条件状语从句,故选B。
3.答案:B
解析:try(not) to do sth.尽力(不)做某事;根据下文"因为你在睡觉"可知"我们尽量不弄出声音来",故选B。
4.答案:B
解析:第一空所在句是含有if引导的条件状语从句的主从复合句,遵循"主将从现"原则,根据"this Sunday"可知,主句时态应该是一般将来时,从句时态应是一般现在时,所以第一空应该填写is; knows后面是宾语从句,同样根据"this Sunday"可知,从句时态是一般将来时,故选B。
5.答案:A
解析:句意:不要气馁。如果你继续努力工作,总有一天你会成功的。本句为含有if引导的条件状语从句的主从复合句,遵循"主将从现"原则。再从someday可知,此主句应用一般将来时。故选A。