新深圳牛津版八年級上冊Unit-3--Computers精品資料

1、Unit 3Computers詞匯及擴展單詞&短語詞性中文擴展1ordern.2comparev.3speakern.4typev.5controlv.6expensiveadj.7tinyadj.8dependv.9operatev.10companyn.11pricen.12totaln.13sellv.14popularadj.15 work as16 (be) unaware of17 depend on18 grand total19 look forward to20 in addition課文重難點詳解1. In the 1940s, the first computer

2、s were bigger than cars.in the 1940s 意為 “在 20 世紀 40 年代 ”，例：在 20 世紀 50 年代表示在某個年代初期或末期，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，沒有意識到 ” 譯：那個男孩沒有意識到危險。3. There is probably one inside your TV or washing machine.one辨析：此處用作代詞，用于泛指前面提到過的名詞。one 和 itoneit泛

3、指上文提到的同類事物中的一個I lost my pen. I must buy one.特指上文提到的同一物品The coat is hers. It s very beautiful.例 ： The banana pie tastes delicious. Could I have another?A oneB itC thisD 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dependentadj.取決于依賴的， 反義

4、詞： independent “獨立的”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 hardhardlyhard“幾乎不”“努力地，困難地，猛烈地”Alice hardly wears skirts.It rained very hard last night.6. However,

5、one day computers may be able to do a better job than human beings. be able to 意為 “能夠 ”，后接動詞原形。7. Will we have nothing to do?to do 為動詞不定式，此處用來修飾nothing, 如果不定式中的動詞是不及物動詞，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?-I m afraid I

6、 can t. I have much homeworkA doB doesC doingD to do.8. 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 likeWhat s 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 lo

7、ok like“某人長什么樣 ”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 sb need to do sth 某人需要去做某事 sth need doing 某物需要被 . neednt用來回來 Must 提出的問句例： I need a pen to write with.例： He needs to have a good rest.例： My bike needs repairing.例： -Must I bring my homework

8、now? -No, youneedn t.重點語法：形容詞的比較級和最高級分為規(guī)則變化和不規(guī)則變化規(guī)則變化如下 :1)單音節(jié)形容詞的比較級和最高級形式是在詞尾加-er和-est構成；greatlong2)以-e結(jié)尾的單音節(jié)形容詞的比較級和最高級是在詞尾加-r和-st構成；widenice-ier3) 以輔音字母和-est構成；+y結(jié)尾的形容詞，比較級和最高級是把y去掉 ,加上happyempty5)輔元輔的形容詞，比較級和最高級是雙寫該輔音字母，再加-er和-est；bigfat6)部分雙音節(jié)和多音節(jié)形容詞，比較級和最高級需用more和most來構成。beautifuldifficult常用的

9、不規(guī)則變化的形容詞的比較級和最高級:good/well-better-bestmany-more-mostmuch-more-mostlittle-less-leastbad/ill-worse-worstfar-farther/ further-farthest/furthestold-older/elder-oldest/eldest形容詞前如加 less和 least則表示 " 較不 " 和" 最不 "important重要lessimportant較不重要leastimportant最不重要形容詞比較級的用法1. 兩者比較時用形容詞比較級，其結(jié)構為 “ .比較級 + than . ”如： Actions speak louder than words.2. 在兩者之間選擇 “哪一個更 ”時，用句型 “ Which / Who is +比較級 , .or .? ”如： Which sweater is cheaper, the red one or the yellow one?3. 表示 “