八上Unit2SectionB.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Section B,词 汇 点 睛,句 型 透 视,Section,B,1 percent,n.,百分之,词 汇 点 睛,观察,We found that only fifteen,percent,of our students exercise every day.,我们发现，只有百分之十五的学生每天锻炼。,Thirty,percent,of time passes.,百分之三十的时间过去了。,探究,percent,也可以写作,per cent,，其符号为,%,。,percent,没有复数形式，一般与介词,_,连用，其后的谓语动词的形式由其所修饰的名词或代词来决定。,of,Section,B,活学活用,About _ the students took part in the camp.,A,40 percent,B,40 percents,C,40 percent of D,40 percents of,解析,C,百分比中的,percent,不用复数形式，且常与介词,of,连用。,through,prep.,以，凭借，穿过,观察,We think the best way to relax is,through,exercise.,我们认为最好的方法是通过锻炼来放松。,探究,本句中,through,作“凭借,/,通过,(,方法或手段,)”,讲，其后通常可接名词或动名词。,Section,B,辨析,through,与,across,through,为介词，意为“穿过”，指从物体内部穿过；,across,为介,词，意为“穿过”，表示从物体表面穿过。如：,The River Thames flows through London.,泰晤士河流经伦敦。,We walked across the street.,我们穿过了街道。,活学活用,用,through,或,across,填空,(1)Go _ the bridge and turn left.,(2)The group walked _ the forests.,(3)Lin Tao walked _ the hall and went into the library.,(4)The man swam _ the Yangtze River last year.,Section,B,across,through,through,across,Section,B,3,mind,n.,头脑，心智,观察,It is healthy for the,mind,and the body.,它,(,锻炼,),有益于身心健康。,A good idea came into my,mind,.,我想到了一个好主意。,Would you,mind,me/my opening the window?,你介意我打开窗户吗？,Not at all.,不介意。,探究,由例句可知,mind,既可作名词，又可作动词。作名词时，意为“头脑，心智”；作动词时，意为“介意，在乎”，后接动名词形式。,拓展,“Would you mind,？”意为“你介意,吗？”一般用于面对陌生人时或者在非常正式的场合中，表达委婉、客气的意愿。,肯定回答：,No,not at all.,不介意，一点儿不介意。,/Of course not.,当然不介意。,否定回答：为了使语气委婉，通常不直接用,Yes,。如：,Yes,I do mind.,是的，我很介意。,/Better not,please.,请最好不要。,Section,B,活学活用,Would you mind _ the TV?,A,turn off,B,turned off,C,to turn off D,turning off,Section,B,解析,D,mind,后接动词的,ing,形式。,1,She says its good for my health.,她说它（牛奶）对我的健康有益。,探究,(1)be good for,意为“对,有好处”，其反义短语是,be bad for,。,(2)health,为名词，意为“健康”。通过构词法，它还可以构成一些其他的词。如：,health(n,.),健康,healthy(adj,.),健康的,healthy(adj,.),健康的,unhealthy(adj,.),不健康的,healthily(adv,.),健康地,unhealthily(adv,.),不健康地,常用搭配：,keep/stay healthy,(be)in good health,保持健康。,句型透视,Section,B,Section,B,辨析,be good for,be good at,be good to,与,be good with,短语,含义及例句,be good for,意为“对,有益”。如：,Watching TV too much is not good for your health.,看电视太多对你的健康没有好处。,be good at,意为“擅长”，后接名词、代词或动名词形式。如：,He is good at playing football.,他擅长踢足球。,be good to,意为“对,好”。如：,The old woman is very good to us.,那个老太太对我们很好。,be good with,意为“灵巧的；与,相处得好”。如：,She is very good with her hands.,她手很巧。,He is very good with the children.,他与这些孩子相处得很好。,Section,B,活学活用,1,单项填空,Doing,taijiquan,is good _ the old.,A,for,B,at C,to D,with,解析,A,be good for,意为“对,有益处”。句意：打太极拳对老年人有好处。,2,用,health,的适当形式完成句子,(1)My grandfather runs every morning to keep _,(2)She keeps in good _,(3)They live _,healthy,health,healthily,2,Although many students like to watch sports,game shows are the most popular.,尽管许多学生喜欢看体育类节目，但是游戏类节目是最受欢迎的。,观察,I didnt pass the exam,although,I studied very hard.,I studied very hard,but I didnt pass the exam.,尽管我很努力学习了，但还是没有通过考试。,Section,B,探究,although,为连词，意为“尽管；虽然”，表示转折关系，,同义词是,though,。一个句子中，,although/though,和,but,只能用,其一。,拓展,类似用法的词还有,because,和,so,。如：,Because I got up late,I didnt catch the early bus.,I got up late,so I didnt catch the early bus.,因为我起晚了，所以没有赶上早班车。,Section,B,活学活用,2013,宁波,Look!Some people are running the red lights.,We should wait _ others are breaking the rule.,A,if,B,unless C,although D,because,答案,C,3 and you can spend time with your friends and family as you play together.,当你们一起玩时，你可以和你的朋友、家人一起共度时光。,探究,spend,为动词，其过去式是,spent,，主语通常是人，常用于以下结构：,spend time/money on,sth,意为“在某事,/,物上花费时间,/,金钱”；,spend time/money(in)doing,sth,意为“花费时间,/,金钱做某事”。如：,I spent two hours on this math problem.,I spent two hours doing this math problem.,做这道数学题花了我两个小时的时间。,Section,B,Section,B,辨析,spend,pay,cost,与,take,单词,用法,spend,spend,的主语必须是人，,常用于以下结构：,(1)spend time/money on,sth,在某事,/,物上花费时间,/,金钱,(2)spend time/money(in)doing,sth,花费时间,/,金钱做某事,pay,pay,的主语是人，常见用法如下：,(1),pay(sb,)money for,sth,付钱,(,给某人,),买某物,(2)pay for,sth,付某物的钱,(3)pay for,sb,替某人付钱,(4)pay,sb,付钱给某人,(5)pay money back,还钱,cost,cost,的主语是物或某种活动，,还可以表示,“,值,”,，,常见用法如下：,(1)sth costs(,sb,),金钱,某物花了,(,某人,),多少钱,(2)(doing),sth,costs(,sb,),时间,(,做,),某事花了,(,某人,),多少时间,take,take,后常跟双宾语，,常见用法如下：,It takes,sb,some time,to do,sth,做某事花了某人多长时间,活学活用,(1)2013,青岛,How much is the ticket to Central Park?,A,oneway,ticket _$40,and you can _ another$20 for a roundtrip.,A,costs;pay,B,cost;spend,C,pay;spend D,spends;pay,(2)2013,荆州,It usually _ Mom about half an hour to cook supper.,A,pays B,takes C,spends D,costs,Section,B,答案,(1)A,(2)B,