英语必修 第一册Unit 2 Exploring English获奖课件ppt

这是一份英语必修 第一册Unit 2 Exploring English获奖课件ppt，共58页。PPT课件主要包含了Unit 2，构词法 ，penfriend，well-known，incorrect，unhappy，calm，presenting，WTO，ASAP等内容，欢迎下载使用。

Explring English
Learn t knw the wrd frmatin rules in English.Learn t knw the differences between American English and British English in spelling and wrds chice.
Read the text in understanding ideas and lk fr wrds using different types f wrd frmatin.
Match the wrds t the types f wrd frmatin.
hamburger eggplant pineapple sculpture painting seasick carsick airsick hmesick hmewrk husewrk hardly sftly harmful harmless shameful shameless rain snw sunshine WHO IT US
abbreviating (缩写)
changing the part f speech (改变词性)
adding a prefix r suffix (加前缀或后缀)
cmbining tw r mre wrds (组合两个或多个单词)
cmbining (组合) tw r mre wrds
Lk at the sentences and expressins frm the reading passage. Match the wrds in bld t the types f wrd frmatin.a. Neither is there pine nr apple in pineapple.b. …sculpt a sculpture…c. When we… see rain…, we can say “it’s raining”…d. WHO
Wrd frmatin
□ 1 abbreviating□ 2 changing the part f speech□ 3 adding a prefix r suffix□ 4 cmbining tw r mre wrds
1-d2-c3-b4-a
Nw lk fr mre examples f each type in the reading passage.
1. abbreviating: IT, US2. changjing the part f speech: when we … see… snw, we can say… “it’s snwing”.3. adding a prefix r suffix: paint-painting, hard-hardly, sft-sftly, harm-harmless/ harmful, shame-shameless/ shameful, visible-invisible
4. cmbining tw r mre wrds: hamburger, eggplant, seasick, airsick, carsick, hmesick, hmewrk, husewrk
英语中，词的构成方法主要有四种：合成法、转化法、派生法和缩写。1. 合成法：合成是由两个或更多的词合成一个词，可用连字符连接，也可直接写一起，或者由分开的两个词构成。合成词一般包括：合成名词、合成形容词、合成动词等。
1) 合成名词名词+名词：pstman, girlfriend, flwerbed, ntebk形容词+名词：blackbard, supermarket, greenhuse名词+动词：daybreak, sunrise, breastfeed动词-ing形式+名词：reading rm, washing machine名词+动词-ing形式：handwriting, papermaking动词+名词：pickpcket, wrkrm
动词+副词：breakup其它形式：get-tgether, g-between, passer-by2) 合成形容词形容词 / 数词+名词+ed：warm-hearted, five-streyed名词+过去分词：hme-made, hand-made名词+形容词：wrld-famus, ice-cl形容词/数词+名词：full-time, secnd-hand形容词+过去分词： newbrn副词+分词：well-knwn, newly-built其它形式：face-t-face, evergreen
3) 合成代词代词宾格/物主代词+ self / selves：herself, urselves某些不定代词sme, any, every, n等+ bdy /ne / thing：anyne, nthing4) 合成介词介词+介词：thrughut, within
5) 合成副词副词+名词：indrs, verhead, upstairs介词+名词：alngside, befrehand名词+形容词：sky-high副词+介词：nearby其它形式：meanwhile, headfirst6) 合成动词副词+动词：verhear, verwrk, underline名词+动词：mnwalk, sunbathe形容词+动词：whitewash, safeguard
2. 派生法：在一个单词之前或之后加上一个词缀，构成一个新词，这种构词法叫派生法。单词前加前缀，一般不改变词性，只引起意义上的变化。单词后加后缀，一般意义变化不大，只改变了词性。如：(dis)hnest, (il)legal, (ir)regular, fl(ish), farm(er), visit(r)等。
3. 转化法：有些名词可作动词，有些形容词可作动词、名词或副词。这种保持词形不变，但改变词性的方法叫转化法。
1) 动词转化为名词 有些词在转化过程中词义变化不大，如attempt, laugh。有些动词转化为名词时意义有一定的变化，如 tear（v. 撕开→ n. 泪水）， recrd（v. 记载，录制→ n. 记录）。
2) 形容词转化为动词、名词或副词，如narrw （adj. 窄的→ v. 使……变窄），red（adj. 红色的→ n. 红色），fast （adj. 快的→ adv. 迅速地）。3) 其它情况的转化，如 head（n. 头 → v. 朝某方向行进），nrth （adj. 北方的→ adv. 向北）。
4. 缩写：用单词或短语的部分内容指代整体。 1) 首字母缩写 WTO – Wrld Trade Organizatin 2) 单词截断 advertisement – ad labratry – lab
Cmplete the passage with the help f wrd frmatin.
When yu pen a dictinary, yu ften cme acrss a lt f unfamiliar wrds. Yu might think this is a bit scary. But many f them are frmed using ther simpler wrds. This is called wrd frmatin.
Wrds frmed by cmbining ther wrds are called cmpunds, fr example, __________ (a friend that yu cntact by writing, traditinally using a pen) and ____________ (knwn by many peple).
Prefixes and suffixes ften have fixed meanings. If yu add un- r in- t a wrd, the new wrd usually means ppsite. Fr example, if smething isn’t crrect it’s _________, and if smene isn’t happy they’re _________. Wrds with the suffixes –ment and –ness are ften nuns. Fr example, if smebdy has imprved a lt, they have made great ______________.
Sme nuns and adjectives can be used as verbs, r the ther way rund. When we calm smebdy dwn, they becme ________. And we can give smene a present by ____________ it.
And smetimes a wrd is made up f the first letters f several wrds: “Wrld Trade Organizatin” can be referred t as ________, and ________ is shrt fr “as sn as pssible”.It is impssible t knw the meaning f every wrd, but knwing abut wrd frmatin can help us guess their meanings.
Chse ne type and cme up with as many wrds as pssible.
□ abbreviating□ changing the part f speech□ adding a prefix r suffix□ cmbining tw r mre wrds
Grup A: unlike, dislike, likely, likelihd
Grup B: unlike, dislike, likeness, likely, liking, unlikely
给下列单词加上前缀dis-, un-, in-, im-或mis-, 构成意思相反的词。1. agree     ________________2. cmplete   ________________3. healthy     ________________4. imprtant ________________5. able     ________________6. cver     ________________
unimprtant 
unable / disable 
discver / uncver    
7. knwn     ________________8. understand     ________________9. fair   ________________10. pssible      ________________
misunderstand   
用括号内单词的正确形式填空。1. Having enugh fat and salt in yur meals will reduce the urge t snack (吃点心) between meals and will imprve the taste f yur fd. Hwever, be ________ (care) nt t g t extremes.
2. She is determined t carry n with her ______________ (educate). 3. Chengdu has dzens f new millinaires, Asia’s biggest building, and fancy new htels. But fr turists like me, pandas are its tp ___________ (attract). 
American and British EnglishLearn t knw the American English wrds and their English equivalents.
Watch Vide fr fun!
Lk at the pictures and get t knw the American English wrds and their English equivalents.
a subway (American English)/undergrund (British English)b highway(American English)/ mtrway (British English)c theater (American English)/ theatre( British English)
d gas (American English)/ petrl British English)e apartment(American English)/flat (British English)f elevatr (American English)/lift(British English)
Nw cmplete the passage with the wrds abve.
Tday, American English is in cmmn internatinal use. It is different frm British English in several ways, mstly in spelling and vcabulary. Sme American spellings were created by Nah Webster, wh made ne f America’s first dictinaries. He changed “-re” spelling t “-er”, which is why ________ is spelt ________ in American English.
The Americans and the British als use different wrds fr everyday things. Fr example, Americans talk abut putting ______ in their cars and driving alng the ________, whereas in the UK, peple put ________ in their cars and drive alng the ___________. Americans take the ________ t the tp flr f a building, but the British use the _____.
In the US, they take the ________ , but in the UK, peple travel n the ____________. Americans live in a(n) ___________, while the British live in a(n) ______.It’s nt as cnfusing as it seems: usually peple frm the tw cuntries can understand each ther frm the cntext. But that desn’t stp them having a friendly argument abut which wrd is the “right” ne!
Decide whether the fllwing wrds are American English spelling r British spelling.
clr metre centre fiber humr rganize aplgise analyse traveling license

Bth f them think they’re n the first flr, but they are n different flrs.
I’m an American.
I’m an English.
Lk at the picture and figure ut their prblem.
Nah Webster Brn: Octber 16, 1758Place: Hartfrd, CnnecticutDied: May 28, 1848Place: New Haven, Cnnecticut
D yu knw this man?
Nah Webster was the authr f the first American Dictinary.
He wanted t simplify the spelling f English and make it lk different frm British English.
Let’s g t the films!
OK. But hw shall we g t the mvies?
Why nt g by undergrund?
Er, but the subway statin is far away.
Read fr fun.
Hi, I’d like sme sweets, please.
N prblem. All the candy we sell is sweet.
I see, s yu sell sweet sweets.
Shall we mve the new bed by lrry?
Nt by me, I hpe.
Oh, I’m srry, Lri. I meant by truck.
Why there are differences between British and American English?
Wrk in pairs. Find mre examples f differences between American and British English. Use a dictinary r search n the Internet.