新深圳牛津版八年級(jí)上冊(cè)Unit-3--Computers.doc

Unit 3 Computers詞匯及擴(kuò)展單詞&短語詞性中文擴(kuò)展1ordern.2comparev.3speakern.4typev.5controlv.6expensiveadj.7tinyadj.8dependv.9operatev.10companyn.11pricen.12totaln.13sellv.14popularadj.15work as16(be) unaware of17depend on18grand total19look forward to20in addition課文重難點(diǎn)詳解1. In the 1940s, the first computers were bigger than cars. in the 1940s意為“在20世紀(jì)40年代”，例：在20世紀(jì)50年代 表示在某個(gè)年代初期或末期，可以在年份前加early或late. 例：in the early 1940s2. You may be unaware of them. be unaware of 意為“未察覺，沒有意識(shí)到” 譯：那個(gè)男孩沒有意識(shí)到危險(xiǎn)。 3. There is probably one inside your TV or washing machine. one 此處用作代詞，用于泛指前面提到過的名詞。辨析：one 和itone泛指上文提到的同類事物中的一個(gè)I lost my pen. I must buy one.it特指上文提到的同一物品The coat is hers. Its very beautiful.例 ：The banana pie tastes delicious. Could I have another ? A one B it C this D that4. You depend on computers more than you realize. depend on意為“依靠，指望”，主語可以是人，也可以是物，其含義有所不同。人依靠 depend on 物 取決于dependent adj. 依賴的， 反義詞：independent “獨(dú)立的” depend on = be dependent on 譯：she depends on us to help her. Our plan depends on the weather. 5. Computers almost never give wrong answers. almost never = hardly 意為“幾乎不”辨析：hardly和hardhardly“幾乎不”Alice hardly wears skirts.hard“努力地，困難地，猛烈地”It rained very hard last night.6. However, one day computers may be able to do a better job than human beings. be able to 意為“能夠”，后接動(dòng)詞原形。7. Will we have nothing to do?to do為動(dòng)詞不定式，此處用來修飾nothing,如果不定式中的動(dòng)詞是不及物動(dòng)詞，需要帶上必要的介詞。例：Do you want something to drink?There is a warm clothes to live in.例：-Why dont you go out to play, Rose?-Im afraid I cant. I have much homework .A do B does C doing D to do8. What were the first computers like? What + be + 主語 + like? 意為“.怎么樣？”, like 是介詞，意為“像，相似”譯：今天天氣怎么樣？ 辨析：whats sb like, what does sb like 與what does sb look likeWhats sb like“某人如何”用于詢問某人的性格，品質(zhì)等What does sb like“某人喜歡什么”用于詢問某人的愛好What does sb look like“某人長(zhǎng)什么樣”用于詢問某人的外貌9.Some young people always need help from their parents. need 用法總結(jié)： need sb/ sth 需要某人或某物 例：I need a pen to write with. sb need to do sth 某人需要去做某事 例：He needs to have a good rest. sth need doing 某物需要被. 例：My bike needs repairing. neednt 用來回來Must 提出的問句 例：-Must I bring my homework now? -No, you neednt.重點(diǎn)語法： 形容詞的比較級(jí)和最高級(jí) 分為規(guī)則變化和不規(guī)則變化 規(guī)則變化如下: 1) 單音節(jié)形容詞的比較級(jí)和最高級(jí)形式是在詞尾加 -er 和 -est 構(gòu)成； great long 2) 以 -e 結(jié)尾的單音節(jié)形容詞的比較級(jí)和最高級(jí)是在詞尾加 -r 和 -st 構(gòu)成； wide nice 3)以輔音字母+y結(jié)尾的形容詞，比較級(jí)和最高級(jí)是把 y 去掉,加上 -ier 和-est 構(gòu)成； happy empty 5) 輔元輔的形容詞，比較級(jí)和最高級(jí)是雙寫該輔音字母，再加-er和-est； big fat 6) 部分雙音節(jié)和多音節(jié)形容詞，比較級(jí)和最高級(jí)需用more 和 most 來構(gòu)成。 beautiful difficult 常用的不規(guī)則變化的形容詞的比較級(jí)和最高級(jí): good/well-better-bestmany-more-mostmuch-more-most little-less-least bad/ill-worse-worst far-farther/ further-farthest/furthest old-older/elder-oldest/eldest 形容詞前如加 less 和 least 則表示較不和最不 important 重要 less important 較不重要 least important 最不重要 形容詞比較級(jí)的用法1. 兩者比較時(shí)用形容詞比較級(jí)，其結(jié)構(gòu)為“. 比較級(jí) + than .”如：Actions speak louder than words.2. 在兩者之間選擇“哪一個(gè)更”時(shí)，用句型 “Which / Who is +比較級(jí), . or .?” 如：Which sweater is cheaper, the red one or the yellow one?3. 表示“兩者之間最的一個(gè)”時(shí)，用“the + 比較級(jí)”如：Lucy is the taller of the twins.4. 表示“越，越”時(shí)，用“the + 比較級(jí)，the + 比較級(jí)”如：The more you eat, the fatter you will become.5. 表示“越來越”時(shí)，用“比較級(jí) + and + 比較級(jí)”，多音節(jié)詞和部分雙音節(jié)詞用“more and more + 形容詞原級(jí)”如：We should make our country more and more beautiful.6. 形容詞比較級(jí)前可以用下列詞修飾：much, a little, far, a bit, a few, a lot, even, still, rather等如：Its much colder today than yesterday.表示“最之一”時(shí)，用 “one of + the + 最高級(jí)”如：The light bulb is one of the most helpful inventions.Unit 3 同步練習(xí)1. The workers spent two years my house. A build B building C builds D huilt2. - How often does Bob play tennis.- . A Every day. B For a year. C A week ago D A month later.3. - Would you like TV?- Id love to, but I have lots of homework to do. A watching B to watch C seeing D to see4. Were looking forward the football game tomorrow. A to B at C on D of5. Im hungry now. Lets stop . A having a meal B having a rest C to have a meal D to have a rest6. That beautiful skirt is cotton. A made of B made into C made from D made up of7. What shall we if we go for a picnic? A bring B take C carry D get8. This box is_ that one.A. heavy than B. so heavy than C. heavier as D. as heavy as 9. When we speak to people, we should be . A. as polite as possible B. as polite as possibly C. as politely as possible D. as politely as possibly 10. This book is_ that one, but_ than that one. A. as difficult as; expensive B. as more difficult as; more expensive C. as difficult as; more expensive D. more difficult as; as expensive 11. I think the story is not so _ as that one. A. interesting B. interested C. more interesting D. most interesting 12. His father began to work_ he was seven years old. A. as old as B. as early as C. since D. while13. I think science is _ than Japanese. A. much important B. important C. much more important D. more much important 14. This pencil is_ than that one. A. longest B. long C. longer D. as long 15. My mother is no _ young. A. shorter B. longer C. little D. few 16. These children are _ this year than they were last year.A. more tall B. more taller C. very taller D. much taller 17. It was very hot yesterday, but it is_ today. A. even hotter B. more hotter C. much more hot D. much hot 18. Mrs Black has got_ instead of getting any better. A. more bad B. a little worse C. much badly D. a lot of worse完型填空All my family members like to use computers.We live in China, 1 my uncle lives in Australia. My father and my uncle often 2 emails to each other. Sometimes 3 chat（聊天）online.My mother is a 4 in a middle school. She often 5 the computer for her lessons. She also gets information for her lessons 6 the Internet. My brother and I like to 7 computer games. I like to play Counter Strike, but he likes to play Tomb Raider. My 8 dont like us to play them too long. They say that playing computer games too long is bad for our 9 and study. We both like 10 , too. So sometimes we download songs from the Internet to our MP3 players. ( )1. A. but B. andC. or D. so( )2. A. makeB. sendC. give D. write( )3. A. weB. youC. they D. I( )4. A. doctorB. teacher C. student D. student( )5. A. playsB. buysC. uses D. does( )6. A. inB. on C. with D. at( )7. A. makeB. do C. play D.get( )8. A. parentsB. friendsC. father D. mother( )9. A. legsB. ears C. eyes D. faces( )10. A. musicB. English C. films D. books閱讀理解We are already familiar with computerscomputers work for us at home, in offices and in factories. But it is also true that many children today are using computers at schools before they can write. What does this mean for the future? Are these children lucky or not?Many people who do not know about computers think of them as machines that children play with. They worry that children do not learn from experience but just from pressing a button and that this is not good for them. They think that children are growing not knowing about the real world.But people who understand more about computers say that computers can be very good for children. A computer can help them to learn about the real world more quickly, to learn what they want to lear