1、1 one evening 一天晚上2 get me a packet of electricity 给我带一包电3 go out 出去4 at last 最后5 buy it in packets 一包包地买6 look foolish 看上去很傻7 flow through a wire 流过电线8 measure the amount you use 测量你使用的电量9 get a bill for 得到一张的账单10 in a way 在某种程度上11 much more dangerous than 比危险得多12 be careful with 小心对待13 look like 看
2、似样14 scratch ones head 挠头15 change into 把变成16 think of 想一想;想出来17 a light bulb 电灯泡18 come from 来自于19 different forms of energy 各种能量20 be connected to 被连接到21 bury under the street 埋在路下22 a power station 发电站23 come back 回来24 May I have , please? 我可以吗?25 on his face 在他脸上26 Here it is. 它在这儿27 Didnt you k
3、now that? 你不知道吗?28 switch off 关上II. 词性转换1. dangerous (a.) 危险的 danger (n.) 危险2. servant (n.) 仆人 serve (v.) 服务 service (n.) 服务3. electricity (n.) 电 electric (a.) 电的 electrical (a.) 有关电的4. foolish (a.) 愚蠢的 fool (n.) 傻瓜 /(v.)愚弄5. monthly (ad.) 每月一次 month (n.) 月份6. explanation (n.) 解释 explain (v.) 解释7. c
4、areful (a.) 小心的 care (n. / v.) 关心 carefully (ad.) 小心地careless (a.) 粗心的8. invisible (a.) 看不见的 visible (a.) 看得见的9. change (n. / v.) 变化 changeable (a.) 多变的10. different (a.) 不同的 difference (n.) 不同点11. power (n.) 力 powerful (a.) 强大的12. politely (ad.) 有礼貌地 polite (a.) 有礼貌的 impolite (a.) 没礼貌的13. contain (
5、v.) 包含 container (n.) 容器14. clear (a.) 清楚的 clearly (ad.) 清楚地III. 语言点1. Im going to buy a packet of sweets. a packet of 意为“一包;一袋”。 句中的sweets作名词,意为“糖果”;sweet也可作形容词,意为“甜的”。2. Ive tricked Daisy at last. 句中的trick作动词,意为“戏弄”;trick也可作名词,意为“诡计;花招;骗局”。如:play a trick on sb.。 at last意为“最终”,与in the end和finally意思
6、相同。3. She doesnt even know what electricity is. even在此作副词,表示“甚至;连;即使”,用来强调出乎意料。 even还可以用于比较级前,表示“甚至更;愈加;还”。even happier。4. Shell really look foolish. 句中的look为系动词,意为“显得”,后接形容词foolish作表语,说明主语的状态。5. A meter measures the amount you use. amount意为“数量,数额”。an amount of表示“一定量的”,一般修饰不可数名词,修饰可数名词则用a number of。
7、6. Its like water, in a way. in a way意为“在某种程度上;不完全地”,可用partly代替;如表示“就某些方面而言”则用in some ways。7. “Thats not a bad explanation,” said Dad, “although electricity is much more dangerous than water. 句中although是连词,意为“虽然;尽管”,用以引导让步状语从句,可用though来代替,但不能与but同时出现在句子中。although与though的区别:(a) although常用于较正式的场合。(b)e
8、ven可以与though连用来加强语气,但不可以与although连用。(c)though可用于句末,而although则不可以。句中much是副词,意为“的多”,用来修饰形容词或副词的比较级。类似可修饰比较级的词还有:still, even, far, a little, a lot等。8. You must always be careful with it. be careful with意为“小心对待;谨慎处理”,后常接名词或代词。 Be careful也可以单独使用,意为“小心”,用以提醒他人注意即将来临的危险。 如要接句子,则使用be careful (that) 。9. Can
9、you tell me what it looks like? look like意为“看似样”,look在此处是系动词,like为介词。此外,look like常和what连用表示“看起来怎么样?”10. Dad said, “Nobodys ever seen electricity.” 句中Nobodys是Nobody has的缩写,与后面的seen构成现在完成时。11. Can you think of an example? 句中think of意为“想一想;想出来”。think of也可以表示“考虑;关心”,此时与think about意思相同。We are thinking of
10、 / about going to France。 另外,What do you think of ?意为“你认为怎么样?”,可用How do you like ?代替。11. Well, it comes into our flat through thin wires, and these are connected to thick wires that are buried under the street. 句中connect是动词,意为“连接;联合”,与join或link意思相近。 一般connect with 指“和连接”,而connect to 指“把连接到”。be conne
11、cted to是个被动结构,表示“被连接到”的意思。12. Theyre packets that contain electricity. 句中that引导的从句是定语从句,用来修饰之前的名词,此处that还可以用which代替。13. Didnt you know that,Benny? 这是一个反问句。在回答反问句时,与反意疑问句相似。表示知道时,应用Yes, I do.;表示不知道时,应用No, I dont.。IV. 语法情态动词一、主要特征。情态动词后的动词都用原形。构成疑问句,通常把情态动词放在主语前;构成否定句,not放在情态动词之后,其缩写形式为cant, mustnt, n
12、eednt, shouldnt等。二、主要用法。1. 用can, could和be able to表示能力。(1) can意为“能够”,否定形式为cannot或cant。 如:He can speak five foreign languages.(2) could是can的过去式。因此,对于过去的时间(如yesterday, last week等),我们不用can或cant,而用could和couldnt。When I was young, I could run very fast.(3) be able to一般可以代替can,也可以表示能力。但can只有一般现在时和一般过去时(coul
13、d),而be able to则有更多的时态形式。My little brother has been able to write.2. 用must与mustnt, have to与dont have to, neednt表示义务。(1) must用以表示“必须做某事”或“一定要做某事”,具有强制性,表示一定的责任或义务。The windows are very dirty. I must clean them.(2) mustnt是must的否定形式,表示“禁止;绝不允许”,具有强制性。You mustnt play football in the street.(3) must没有过去时,要
14、表达过去的含义,我们可使用had to代替must。 此外,have to侧重这种“义务”或“责任”源于某种客观情况或规定,并非说话者本人能够控制。We missed the last bus, so we had to walk home.(4) dont have to与neednt是“不必”的意思,没有强制性。两者意思相近,但在使用时,前者有人称、时态的变化;后者没有人称变化,而且一般表示现在时间的含义。It has just rained, so he doesnt have to water the garden. You neednt swim in the sea. We have a swimming pool in our hotel.(5) must用于一般疑问句中,其肯定和否定回答应引起注意。Must we go now? 我们一定要走吗? - Yes, we must. 是的,我们一定要走。 - No, we mustnt. 不,我们不可以走。 Must I finish the work this week? 我一定要在这星期完成这项工作吗? - Yes, you m
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