2Languageinuse 全国优质课一等奖-完整版获奖课件

1、Unit 3 Language in useModule 12 ride a bike turn offa plastic bagdo with divide into throw awayproduce waste cause pollution骑自行车关掉一个塑料袋处理把 . 分成 .扔掉；丢弃产生废物造成污染；导致污染Translate the phrases into English. order food china cups cloth bagstons ofhope fortake steps点菜瓷杯布袋子许多；很多希望/ 期待采取步骤； 采取措施We can recycleWe

2、 can reduceWe can reuse123456Choose the number and do exercises using -able, -ful, -less, im-, re-, un-.If a chair makes you feel physically relaxed when you sit on it, you can say the chair is_.comfortable comfort + able = comfortableIf you are always ready to help people, you are _.helpful help +

3、ful = helpfulIf you write something and it isnt very good, you should _ it.rewrite re + write = rewriteIf you arent certain about something, you are _.uncertain un + certain = uncertainIf someone is rude and does not have good manners, we can say he / she is _.impolite im + polite = impoliteIf somet

4、hing is without any use, it is _.useless use + less = useless在一个单词的前面或后面加上一个词缀，就可以构成一个新词。 根据词缀的位置，分为前缀和后缀两种。掌握一些常见的词缀，对单词的记忆和理解有很大的帮助。比如care, 可构成careful, careless, carefully, carelessly。下面我们来学习几个常见的前、后缀：1. 表示否定意义 “无，不”的前缀impolite, impossibleun-in-dis-im-il-unfair, unhappyinactive, inhuman, indirectd

5、isagree, disappear illegal前缀2. 表示程度、大小的前缀super-over-mini-under-superstar, supermarket,superman, superpoweroverhead, overeat, overuseminibus, miniskirt, minicarunderground, underwater前缀3. 表示 “再；重”的前缀re-rewrite, reuse, recycle前缀4. 表示 “拥护”、“反对”的前缀pro-anti-pro-Chinese, pro-Americananti-war, anti-polluti

6、on5. 表示 “整个、完全”意思的前缀al- 表示“完整，完全” ： alone, almostover-表示“完全，全” ： overall, overflow前缀able表示“可能，易于，适合于”， 构成形容词。如： renewable, eatable(可吃的)，lovable， comfortable, movable后缀常见的后缀：2. ful 表示“充满.的，具有.性质 的”，构成形容词。如： helpful, hopeful, powerful, useful, careful, beautiful后缀3. less 与-ful 相反，表示“少的，不足的”，构成形容词。如： h

7、elpless, hopeless, powerless, useless, 1. 动词变名词-ation-ment -al-ee -er-orsatisfaction, education, realizationdevelopment, movement arrival, refusal trainee, employeeteacher, workervisitor, sailor改变词性的后缀2. 形容词变名词-ness-ity-ismhappiness, meanness, carelessnessability, possibility Marxism, criticism3. 名词

8、、形容词变动词-ify-ize-enbeautify, simplifyrealizequicken, widen, sharpen4. 名词变形容词-y-ish-some-ous-fulwindy, rainy, sandyfoolish, feverishhandsome, troublesomedangerous, humoroushelpful, careful, peacefulPractice 1. Now the climate gets warmer and warmer because the _ (pollute) is getting more serious.2. Ca

9、n you do your homework more _ (careful) next time? You made many mistakes.3. It is _ (hope), no matter what we do to make it better. pollutioncarefullyhopelessComplete the sentences.1. full of care _B care collect hope possible use usual wanted wasteA -able -ful im- -less re- un-carefulMake new word

10、s. Join the parts of words in Box A with the words in Box B.2. can be collected _3. full of hope _4. without any hope _5. not possible _6. not usual _7. without any use _8. use again _9. not wanted _10. making a lot of waste _collectablehopefulhopelessimpossibleunusualuselessreuseunwantedwasteful ho

11、peful impossible reuse unhealthy wastefulComplete the sentences with the words in the box.Polluted waster is _.It is _ to throw so much food away.If you look after things well, you may _ some of them later.It is _to clean up the whole river in such a short time. If we pay attention to pollution now,

12、 the future will be _.unhealthywasteful reuseimpossiblehopeful 英语主要有三种构词法： 1）转化（Conversion）：由一个词类转化为另一词类：water（名）水-water（动）浇水 2）派生（Derivation）：通过加前缀或后缀构成另一个词：happy-unhappy（加前缀） 3）合成（Compounding）：由两个或更多的词合成一个词：wood（木）+cut（刻）- woodcut（木刻） 有大量动词可以转化为名词，有时意思没有太大变化： Letmehaveatry. 我来试一试。 Westoppedtherefo

13、raswim. 我们在那儿停下来游了一会儿泳。 Ilikeaquietreadaftersupper. 晚饭后我喜欢静静地看一会儿书。也有相当多名词可以用作动词。许多表示物件的名词可以用作动词来表示动作： Haveyoubookedyourticket? 你的票订好了吗？ Whochairedthemeeting? 谁主持会议？Handinyourexercise-books,please. 请把练习本交上来。 有少部分形容词也可用作动词或名词： Pleasewarmupthedishoverthestove. 请把菜放在炉子上加热一下。Theyrerunninginthefinal. 他们正

14、在进行（赛跑的）决赛。 Noun Verb Adjective Adverb useful /uselesshopehopefully/hopelesslypollution-water- -waste- useuseusefully/uselesslyhopehopeful/hopelesswastepolluted / unpollutedwaterwasted/wastefulwastefullypolluteComplete the table.usualusually/unusuallyComplete the sentences with the correct form of t

15、he words in Activity 3.The factory _ the river, and the fish died.We often walk in the countryside. It is a(n) _ activity for us.Do not use so much water. It is very _.To keep the flowers growing, you need to _ them once a day.wastefulusualpollutedwater由两个或更多的词合成一个词的现象叫复合词，又称合成词。词与词之间可以有连字符，其中以复合名词最

16、多，其次是复合形容词，复合动词、介词、副词、数词等也不少。A“名词名词”。例如：football 足球 classroom教室housework 家务活 doorbell 门铃pencil-box 铅笔盒复合名词B“名词动词-ing”。例如： handwriting 书法 sun-bathing 日光浴 bookkeeping 笔记letter-writing 书信 watchmaking 钟表制造业C“动词-ing名词”。例如： running water 流水 flying fish 飞鱼 sitting-room 起居室 reading-room 阅览室 dining car 餐车D“动

17、词名词”。例如： pickpocket 扒手 breakwater 防浪堤playground 操场E“形容词名词”。例如： blackboard 黑板F“动词副词”。例如： get-together 聚会 break-through 突破A “形容词形容词” 。例如： dark blue 深蓝色的复合形容词B、“形容词名词”。 例如： long-distance 长途的low-temperature 低温的C、“形容词名词-ed” 。例如： kind-hearted 好心的D、“形容词现在分词”。 例如： good-looking 好看的hard-working 努力工作的A“名词动词” 。

18、例如： sleep-walk 梦游复合动词B“副词动词” 。 例如： overload 超载C“形容词动词” 。 例如： white-wash 粉刷D“副词名词” 。例如： underline 在下划线overwork 过度工作E“动词副词” 。 例如： bring-up 教养复合代词主要有由some any no等构成的不定代词或者由物主代词（或人称代词宾语）加-self -selves等构成的反身代词。例如：复合代词 something某物（某事）somebody someone 某人 nothing 没有东西 yourself 你自己复合词的组成部分有时连在一起写，有时用连字符号“-”连起来，有时则分开写，其规律还很难概括。大多数复合词的意思可以从其组成部分的词义及其相互关系中推想出来。但有的语义就不是原来两个词的语义的简单相加，而是从中引出新语义。例如： a greenhouse 温室；暖房 dog days 三伏天(大热天) Complete the sentences