沪教版英语八上 Unit3 讲义.docx

1、沪教版英语八上 Unit3 讲义Unit 3 Computers1.Work as 2.Be unaware of 3.缺少，缺乏 4.在某地制造 5.in addition 6.玩得开心、愉快 7.in the future 8.过去常常做某事 9.grand total 10.one day 11.上网 12.期待，期盼 【经典例句】1. Learn how to compare things by using the comparative of adjectives. compare v.比较；对比 comparewith compareto 如： this picture that

2、one and see which is better. This song our country a big family.2. You depend on computers more than you realize. Depend on ，不能用于进行时态，也不能用于被动语态。如：Children depend on their parents.more than意为“ ”，常和数词连用，相当于 He bought more than 60 books.3.You never seem to be short of pocket money. Seem意为“ ”（1）在“seem（t

3、o be）+ 形容词”结构中，to be 可以省略。但如果后面是afraid，asleep，awake等表语形容词时，则to be不能省略。 The green leaves seemed （to be）more beautiful after the rain. She seems to be afraid of the teacher. （2）seem to do sth. 似乎是，好像要做某事 seem后还可以接that从句，构成It seems/seemed + that. He seems （know）everthing. It seems that John doesnt agre

4、e with you.【经典例题】1.Can you lend me some money ? I _it right now .A .am short of B .in short for C .was short for2.My parents showed _ some old pictures that brought back sweet memories.A I B me C my D mine3.Shall we go for a picnic tomorrow ? Well, it all _the weather.A belongs to B happens to C dep

5、ends on 4.Im going on vacation this weekend. _!A The same to you B Have a good time C Hurry up D Hold on, please.5.I seem to have seen him somewhere before.（改为同义句） It that I him somewhere before.4. However, one day computers may be able to do a better job than human beings.Be able to 意为“能，能够”，后接动词原形

6、。Tom is able to（can）speak English very wellHe was able to（could）drive a car three years ago.I think youll be able to pass the exam.辨析be able to与canbe able to表示有能力，往往是经过努力而获得的能力有人称和数的变化可用于多种时态can表示身体或精神上自身具备的能力，还可以表示请求、允许、推测没有人称和数的变化只有一般现在时和一般过去时的两种时态5.Some young people always need help from their pa

7、rents. Need作实义动词讲，意为需要Need to do sth “需要做某事”，主语通常是人We need to tell him the truth.Need doing sth “ ”，主语通常是物The flowers need watering.Need作情态动词时，没有人称和数的变化，后接动词原形，主要用于否定句或疑问句中。6.We had fun and learnt something new as well.As well意为“ ”。通常放句末，相当于 .I can speak Chinese and I can speak English .辨析易混词：as wel

8、l , also , too , eitheras well用于肯定句句末，不用逗号与句子分开also用于肯定句句中，also位于be动词和助动词之后，行为动词之前too用于肯定句句末，前面用逗号隔开，有时也可无逗号either表示“也”时，用于否定句句末以加强语气【经典例题】一、单项选择： ( ) 1.Mary depended _ her grandparents after her parents died in the accident A. on B. in C. by D. with( ) 2.Lucys mother _ a teacher in a big school. Sh

9、e is kind to all her students. A. works out B. works as C. works in D. works on( ) 3.Sam is an excellent engineer. _ ,he is a good footballer. A. in trouble B. in time C. in addition D. in future( ) 4.Lucy could read storybooks at the age of four. A.is able to B.was able to C.should D.would( ) 5.Fin

10、ish your homework first,then youll watch TV for an hour. A.can B.be able to C.able D.would( ) 6.Must I hand in my homework now,Mr.Smith? No,you . A.cant B.shouldnt C.wouldnt D.neednt(二) 完成句子。1 人们生病时要依靠医生。 People have to _ _ doctors when they are ill.2此外，李老师还是个灌篮高手。_ _, Mr Li is a great basketball pl

11、ayer.3 你父亲从事什么工作？ What does your father _ _?3我没察觉到这个错误的答案。I _ _ _ the wrong answer.5 如果你比较一下这些文章，你就会知道谁写得最好。 _ you _ these articles,youll know writes the best.7. What do you think of computers? What do you think of.= How do you like? 你觉得.怎么样？ -What do you think of your trip? -Great! We have a good t

12、ime!【中考链接】 你认为我们的校规和班规怎样？_ do you _ _ our school rules and class rules?8.How often do you use the computer? How often “ ” 回答的时候用频度副词always，often或者频度副词短语 once/twice a week. How often do they play ping-pong? Once a week.【辨析】how soon 多久以后，指频率常用“in+时间段”回答how long意为“多长（时间）”，既可对一段时间提问，也可对物体长度提问 常用“for+时间段

13、” 回答how far多远，询问距离、路程常用表示距离的短语回答【中考链接】_ do you go to library?Once a week.9.The red one costs 2,500 yuan,and its made of leather.spend , take, pay, cost 的区别易混词含义及用法例句spendspend作花费讲，主语只能是人，指某人“花费（时间、金钱）”，常用于spendon sth 或spend(in) doing sthHe spent much time on his hoework.Mike spent one yuan (in) buyi

14、ng a pen.taketake作“花费”讲，常用于it takes sb sometime to do sth 句型中It took us a week to finish the work.costcost作“花费（时间、精力、金钱等）”讲，主语只能是物或事情，cost 可以接双宾语，但cost没有被动语态。 Sth cost(s)/cost (sb) some money .The bike cost me 200 yuan.payPay作“花费”讲，主语只能是人，指为买的东西付钱，常与介词for连用。Sb pay（s）/paid money for sbTom paid 200yuan for the coat.【经典例题】【中考链接】1.I _ some of my free time playing basketball for my school team. A spend B cost C take D pay. 2.How much does the TV ? Not too much.Its just a second-handed one. A.cost B.spend C.take D.pay for 3.A computer