人教版八年级英语上册《Unit 2 Section B 2a-2e》教学课件PPT初二优秀公开课

Unit

2 SectionB

2a-2e人教版 英语 八年级 上册ObjectivesTolearnaboutthefreetimeactivitiesof

the

students fromNo.5High

School.Tolearnto

useadverbs offrequency

towriteaboutyour

habits.

Tolearnnewwords:percent,through,

however,almost,none,less,point…Makeyourownconversationsin

pairs.RevisionWhatdoyouusuallydoinyourfree

time?Howoftendoyou…

？watch

TVgotothe

moviesplay

computergamesexercise

orplay sportsusethe

Internetgocamping

inthe

countryRanktheseactivitiesaccordingtohowoftenyouthinkyouclassmatesdothem(1=mostoften,6=least

often

1最多6最少)go

onlineForme,Imostoftengo

online.Ileastoftengotothe

movies.2a百分数用基数+

percent表示50％

fiftypercent3％

threepercent百分之五十百分之三Inour

class,

studentslikeusingtheInternet.

studentslikeplaying

sports.

studentslikewatching

TV.

studentslikedoing

homework.Let's

summarize.Allstudents?=100%Moststudents?=51%-99%Somestudents?=1%-50%Nostudents?=

0%usetheInternet25%25

percent????%25

percent35

percent15

percentReadthearticleandcompletethepiechartsonthenext

page.WhatDoNo.5HighSchoolStudentsDoinTheirFree

Time?Lastmonthweaskedourstudentsabout

theirfreetimeactivities.Ourquestionswereaboutexercise,useoftheInternetandwatchingTV.Herearethe

results.2bWefoundthatonlyfifteenpercentofourstudentsexerciseeveryday.Forty-fivepercentexercisefourtosixtimesaweek.Twentypercentexerciseonlyonetothreetimesaweek.Andtwentypercentdonotexerciseat

all!Weallknowthatmanystudentsoftengoonline,butweweresurprised

thatninetypercentofthemusetheInterneteveryday.Theothertenpercentuseitatleastthreeorfourtimesaweek.Moststudentsuseitforfun

andnotfor

homework.Theanswerstoourquestionsaboutwatchingtelevisionwerealso

interesting.OnlytwopercentofthestudentswatchTVonetothreetimesaweek.ThirteenpercentwatchTVfourtosixtimesaweek.Andeighty-fivepercentwatchTVeveryday!Althoughmanystudentsliketowatchsports,gameshowsarethemost

popular.ItisgoodtorelaxbyusingtheInternetorwatchinggameshows,butwethinkthebestwaytorelaxisthroughexercise.Itishealthyforthemindandthebody.Exercisesuchasplayingsportsisfun,andyoucanspendtimewithyourfriendsandfamilyasyouplaytogether.And

remember,“oldhabitsdiehard”.Sostartexercisingbeforeit’stoo

late!20204590Readthearticleandcompletethepiechartsonthenextpage.15 10 13 285Readthepassagequicklyandfindtheanswerstothequestions

below.Howmanykindsoffreetimeactivitiesarementionedinthe

passage?

T_hre_e_.Whatare

they?Exercise,usetheinternet/go

online,_w_a_t_c_h

T_V Results

调查结果Topic

调查内容Para.1 Comments

调查结论Para.2,3,

4Para.

5ExerciseWatching

TVGo

onlineReadingtaskSkimthearticleandmatcheachparagraphwiththefollowingparts.Readeachparagraphquicklyanddrawalinetogetthemainidea.Para1.Para2.Para3.Para5.FreetimeactivitiesPara4.A.Itisabouthowoften

studentswatch

TV.Itisasurveyaboutstudents’freetime

activities.Ittellshowoftenstudentsdoexercise.Thebestwaytorelaxisthroughexercise.Itisabouthowoftenstudents

goonline.ReadthearticleandmarkTrue(T)orFalse

(F).Wefoundthattwentypercentofourstudentsexerciseevery

day.NinetypercentofthestudentsusetheInternetevery

day.MoststudentsusetheInternetfor

homework.OnlytwentypercentofthestudentswatchTVtwoorthreetimesa

week.Doexerciseishealthyforthemindandthe

body.FTFFTReadthearticleagainandanswerthe

questions.Howmanystudentsdonotexerciseat

all?20%studentsdonotexerciseat

all.HowmanystudentsusetheInternetevery

day?90%studentsusetheInternetevery

day.HowoftendomoststudentswatchTV?Whatdotheyusuallywatch?MoststudentswatchTVeveryday.Theyusuallywatchsports,game

shows.2c4.Whatdoesthewriterthinkisthebestwaytorelax?

Why?Exercise,becauseitishealthyforthemindandthebody.5.DoyouthinkthestudentsatNo.5arehealthy?Whyorwhy

not?No,Idon’tthinkso.BecausemostofthestudentsuseInternetorwatchTVontheirfreetime.

Theydon’tlikeexercising.It’s

unhealthy.1. Wefoundthatonlyfifteenpercentofourstudentsexerciseevery

day.percent n.“百分之……”没有复数形式基数词+percent+

of...“百分之...的...”作主语时，谓语的数和of后的名词，代词保持一致。Seventypercentoftheboyslikeplayingcomputer games.男生中70%喜欢玩电脑游戏。Thirtypercentoftime

passes.百分之三十的时间过去了。2.Althoughmanystudentsliketowatchsports,game

showsarethe

most

popular.虽然很多学生喜欢看体育节目，但游戏节目是最受欢迎的。although是连词，意为“虽然，即使，纵然”，引导让步状语从句，相当于

though，大多数情况下两者可互换。注意：although

引导的从句不能与but

连用，有although就没有

but（即

althoughbut不同现）。Althoughitrained,theboysstillplayed

outside.=Itrained,buttheboysstillplayedoutside.尽管天下雨了，但男孩们仍在外面玩耍。Ex.Hedidn'tsaysorrytome.Hewaswrong.(合并为一句）Hedidn'tsaysorrytomea_l_t_h_o_u_g_h_hewas

wrong.3butwethinkthebestwaytorelaxisthrough

exercise.through

prep.

以，凭借，穿过eg.Lightcomesinthroughthe

window.易错点：辨析through,

across

,over

(见下图）Ex.

选词填空We

walked the

bridge.a_c_ro_s_sSamlikedtrekking_t_h_r_o_u_g_hthejungle,becausehethinksit's

exciting.Thebirds

fly

o_v_er the

lake.4.. Andtwentypercentdonotexerciseat

all!百分之二十的学生根本不运动！not

…

at

all

“一点也不”，注意：not代表了所有否定句，次结构可理解为在否定句末加上at

all加强否定句语气。拓展：在口语中单独说

not

at

all,

可用来表示“不用谢”“没关系”。Thestoryisn’tinterestingat

all.那个故事一点也没有趣。Theydidn’tenjoythevacationat

all.他们根本不喜欢那次旅行。Theoldmancanhardlyeverusethecomputerat

all.那位老人一点也不会用电脑。5.Exercisesuchasplayingsportsisfun,andyoucanspendtimewithyourfriendsandfamilyasyouplay

together.such

as

用来举例，意为“例如；诸如此类的；像······那样的”，结构常为：名词+suchas+

例子。注意：其后面不可列举出所有的事物。Iknowfourlanguages,suchas,Englishand

Chinese.我了解四种语言，例如英语、汉语。Shelikesanimassuchasrabbitsand

birds.她喜欢像兔子、小鸟这样的小动物。温馨提示：such

as

可与like通用，所举例子只能为单词和短语，但for

example所举例

子要为句子。试对比：Hedoessportslike/suchasrunningeveryday.Helikessports.Forexample,herunsevery

day.6.…butweweresurprisedthatninetypercentofthemusetheInternetevery

day.surprised

形容词，意思是“感到惊讶的”，修饰人，surprising

“令人惊讶”，修饰物。常用结构：1）be

surprisedat

sth

对某事感到惊讶be

surprisedtodo

sth

做某事而感到惊讶be

surprised+that从句

因……而惊讶我们队这个消息感到很意外。Wearesurprisedatthe

news.我在这里见到你很意外。Iamverysurprisedtomeetyou

here.7.Sostartexercisingbeforeit’stoo

late!所以要赶快锻炼起来，不要等到来不及了。start

doing

sth/todo

sth=beginto

dosth/doing

sth开始做某事it’s

too

late 为时太晚；来不及了it’s

too

late与before共同组成从句，表示“不要等到为时已晚；不要等到来不及的时候；趁着还来得及”。Nowyouknowyou’rewrong,butit’stoo

late.现在你知道你错了，但是已经太晚了。你应当更加用功，别等到为时过晚而赶不上了。Youshouldworkharderbeforeit’stoolatetocatch

up.Phrases

summary向某人询问某事……的答案每周四至六次一点也不……上网至少每周三或四次做某事的最好方式例如和某人一起度过时光开始做某事asksb.about

sth.theanswers

tofourtosixtimesa

weeknot…atallgoonlineatleastthreeorfourtimesa

weekthebestwaytodo

sth.suchasspendtimewith

sb.startdoingsth.Accordingtothearticleandthepiechart,writesentenceswiththepercentagesusingalways,usuallyor

sometimes.1.90%:_9_0_%o_f_s_t_u_de_n_t_s_a_l_wa_y_s_use

t_h_e

I_n_t_ernet.2.85%:_8_5_%o_f_s_t_u_de_n_t_s_a_l_wa_y_s_wa_t_c_hT_V.

_3.45%:45_%o_f_t_h_e_mu_s_u_a_l_ly

e_x_e_r_c_i_s_e_.

4.10%:1_0%of

_t_h_e_ms_o_me_t_i_me_s_u_s_e

t_h_e

Inte_rnet.5.13%:1_3%of

_t_h_e_ms_o_me_t_i_me_s_wa_t_c_h

T_V_. 6.2%: _2_%o_f_t_h_e_m

s_o_me_t_ime_sw_a_t_c_h

T_V. 2dChooseoneofthesefreetimeactivitiesorthinkofyourown.Thenaskyourclassmateshowoftentheydothisactivityandmakeapiechart.Showthepiecharttoyour

class.play

computer

games read

booksgo

shopping draw

pictures play

sportsHowoftendo

you…?Namesof

classmates1-3timesa

wee