Unit6语法专项连词so…thatunlessassoonas课件人教版英语八年级下册

教学课件新人教版八年级下册

Unit6语法专项——连词（so…that/unless/assoonas）

全解精讲+分层练习学习目标1.理解so…that/unless/assoonas的核心含义及对应从句类型2.熟练掌握三大从句的结构、时态规则及同义替换技巧3.能区分易混点（so…that与such…that等），规避常见错误4.完成填空、选择、句型转换、语篇填空等多样题型练习知识点1：so…that引导结果状语从句（核心概念）核心含义：如此……以至于……

从句类型：结果状语从句，说明主句动作带来的最终结果核心逻辑：主句描述程度，从句呈现该程度引发的结果本单元贴合：描述礼仪、习俗的特点及带来的影响注意：结果多为客观发生，前后句有明显因果关联so…that核心结构与用法

基本结构：so+形容词/副词+that+完整句子结构拆解：so修饰形容词/副词，表“程度”；that引导结果形容词搭配：so+adj.（如formal/rude）+that副词搭配：so+adv.（如quickly/carefully）+that关键：that不可省略，从句需用完整句式（主谓宾/主系表）

so…that例句精讲（贴合单元话题）1.Thegreetingissopolitethateveryonelikesit.（adj.+that）（这种问候方式如此礼貌，以至于每个人都喜欢。）2.HebowedsoquicklythatIdidn’treactintime.（adv.+that）（他鞠躬太快，我没能及时反应过来。）3.错误：It’ssoaformalcustomthatwedon’tdoit.（结构错误）4.正确：It’ssuchaformalcustomthatwedon’tdoit.（后续讲解）so…that同义替换（such…that）

替换场景：当so修饰的形容词后接名词时，可用such…that替换替换结构：such+a/an+形容词+单数名词+that

对比例句（原句vs替换句）：原句：It’ssoformalacustomthatwedon’tdoit.（较少用）替换句：It’ssuchaformalcustomthatwedon’tdoit.（常用）

注意：不可混淆so和such的位置，名词前必须加形容词so…that小试牛刀（单句填空）用so/such…that填空，注意结构规范1.Thepartyis_______interesting_______everyoneishappy.（so/such）2.It’s_______apolitegreeting_______weallreplytoit.（so/such）3.Shespeaks_______softly_______noonecanhearher.（so/such）4.Theyhave_______muchfood_______wecan’tfinishit.（so/such）sothatsuchthatsothatsothat知识点2：unless引导条件状语从句（核心概念）核心含义：除非；如果不从句类型：条件状语从句，表“唯一条件”，语气较强硬同义替换：unless=if…not（可互换，unless更简洁）本单元贴合：描述礼仪中的“前提条件”（如带礼物、直呼其名）关键：从句表条件，主句表该条件下的结果unless核心结构与时态规则基本结构：unless+完整句子（从句），+主句（完整句子）时态规则：遵循主将从现原则从句：一般现在时（表将来）；主句：一般将来时/情态动词/祈使句语序：从句可置于句首（加逗号）或句中（无逗号）注意：unless本身表否定，从句中不可再加not（避免双重否定）unless例句精讲+同义替换1.Youcan’tentertheroomunlessyoutakeoffyourshoes.（原句）同义句：Youcan’tentertheroomifyoudon’ttakeoffyourshoes.2.Unlessyouareinvited,don’tjointheirtalk.（句首，祈使句主句）3.Shewon’thelpyouunlessyouaskpolitely.（主句含情态动词will）4.错误：Unlessyoudon’thurryup,youwillbelate.（双重否定）unless小试牛刀（单句填空/改写）1.Youcan’tusehispen_______heagrees.

2.Don’ttouchthethings_______theownerallowsyou.

3.改写：Youcan’tgooutifyoudon’tfinishyourhomework.（用unless）________________________________________4.改写：Unlessyoustudyhard,youcan’tpassthetest.（用if…not）________________________________________unlessunlessYoucan’tgooutunlessyoufinishyourhomework.Ifyoudon’tstudyhard,youcan’tpassthetest.知识点3：assoonas引导时间状语从句（核心概念）

核心含义：一……就……从句类型：时间状语从句，表两个动作紧接着发生核心特点：动作间隔极短，强调“即时性”本单元贴合：描述礼仪中的连贯动作（如见面鞠躬、进门脱鞋）注意：主从句动作均为将来发生时，遵循特定时态规则assoonas核心结构与时态规则基本结构：assoonas+完整句子（从句），+主句（完整句子）时态规则：遵循主将从现原则（与unless一致）从句：一般现在时（表将来）；主句：一般将来时/情态动词/祈使句语序：从句可置于句首（加逗号）或句中（无逗号）注意：assoonas不可拆分，不能省略as或soonassoonas例句精讲（贴合单元话题）1.Assoonaswemeetourneighbors,wesay“Goodmorning”.（句首）（我们一见到邻居，就说“早上好”。）2.IwillcallyouassoonasIarriveattheairport.（句中，将来时主句）3.Pleasestandupassoonastheteachercomesin.（祈使句主句）4.错误：Assoonashewillcome,wewillstarttheparty.（从句用将来时）5.正确：Assoonashecomes,wewillstarttheparty.assoonas小试牛刀（单句填空/改写）用所给动词的适当形式填空，或改写句子1.Assoonasshe_______(get)home,shewillcookdinner.（填空）2.We_______(bow)assoonaswemeetastranger.（填空）3.改写：Hewillsendamessagetomewhenhearrives.

________________________________________4.改写：Assoonastheclassends,studentsgoouttoplay.（换语序）________________________________________getsbowHewillsendamessagetomeassoonashearrives.Studentsgoouttoplayassoonastheclassends.易混点辨析（一）：so…thatvssuch…that1.相同点：均引导结果状语从句，含义均为“如此……以至于……”2.不同点（核心）：修饰对象不同so：修饰形容词/副词（无名词）such：修饰形容词+名词（名词必须出现）3.对比例句：so：Sheissokindthateveryonehelpsher.（修饰adj.kind）such：Sheissuchakindgirlthateveryonehelpsher.（修饰adj.+n.）易混点辨析（二）：unlessvsif1.关系：unless=if…not，可互换，但语气不同unless：语气强烈，表“唯一条件”（除非……才……）if…not：语气平淡，表“假设条件”（如果不……就……）2.对比例句：unless：Iwon’tgounlessyougowithme.（你陪我才去，唯一条件）if…not：Iwon’tgoifyoudon’tgowithme.（只是假设，无唯一感）易混点辨析（三）：三大连词时态对比1.so…that（结果状语从句）：主从句时态保持一致例：Hewassotiredthathefellasleep.（主过从过）2.unless（条件）、assoonas（时间）：均遵循主将从现例：Unlessitrains,wewillgo.（从现主将）例：Assoonashecomes,wewillstart.（从现主将）3.易错点：混淆时态规则，给unless/assoonas从句用将来时专项练习一：用所给连词填空

用so…that/unless/assoonas填空，每词可重复使用1.___________youfinishyourhomework,youcanwatchTV.

2.Themovieis_______moving_______manypeoplecry.

3.Youcan’tpasstheexam_______youstudyhardeveryday.

4.______________wearriveinBeijing,wewillvisittheGreatWall.5.Sheruns_______fast_______noonecancatchupwithher.6.Don’topenthebox_______yourmothertellsyouto.7.___________thebellrings,thestudentswillgobacktotheirseats.8.It’s_______acoldday_______wedon’twanttogoout.AssoonassothatunlessAssoonassothatunlessAssoonassuchthat专项练习二：单项选择1.Thecustomis_______special_______weallrememberit.

A.so;thatB.such;thatC.too;toD.enough;to2.Youwon’tgetgoodgrades_______youtryyourbest.

A.ifB.unlessC.assoonasD.because3._______Iseeher,Iwillgiveherthegift.

A.AssoonasB.UnlessC.SothatD.If4.It’s_______abeautifuldress_______shewantstobuyit.

A.so;thatB.such;thatC.too;toD.enough;toABAB专项练习二：单项选择

5._______youdon’thurryup,youwillmisstheschoolbus.

A.UnlessB.IfC.AssoonasD.Because6.Hewillcallme_______hegetsthenews.

A.assoonasB.unlessC.sothatD.if7.ShespeaksEnglish_______well_______shecantalkwithforeigners.

A.so;thatB.such;thatC.too;toD.enough;to8.Youcanusemyphone_______youkeepitclean.

A.unlessB.ifC.assoonasD.sothat9._______therainstops,wewillgoforawalk.

A.AssoonasB.UnlessC.IfD.Because10.Theproblemis_______difficult_______Ican’tsolveit.

A.so;thatB.such;thatC.too;toD.enough;toBAABAA专项练习三：句型转换

按要求改写句子，每空一词，保持原意不变1.Thestoryissointerestingthatallstudentslikeit.

It’s____________________________________allstudentslikeit.2.Youcan’tgooutunlessyoufinishyourhomework.

Youcan’tgoout_______you______________yourhomework.3.Assoonaswegetup,webrushourteeth.（对划线部分提问）______________youbrushyourteeth?suchaninterestingstorythatifdon’tfinishWhendo专项练习三：句型转换

4.Heissotallthathecanreachthetopoftheshelf.（改写同义句）Heistall______________reachthetopoftheshelf.（too…to）5.Assoonasshearrives,shewillhelphermothercook.（换语序）Shewillhelphermothercook_____________________shearrives.6.Unlessyouaskforhelp,noonewillhelpyou.

_______you______________________help,noonewillhelpyou.enoughtoassoonasIfdon’taskfor专项练习四：动词形式填空

结合三大连词，用所给动词的适当形式填空1.Assoonashe_______(reach)thestation,he_________(call)me.（主将从现）2.TheroomissodirtythatI_______(want)tocleanitatonce.（时态一致）3.Unlesswe_______(hurry)up,we_______(be)lateforthemeeting.4.She_______(cry)soloudlythathermother_______(hear)herjustnow.5.Assoonastheteacher_______(come)in,thestudents__________(stop)talking.6.You___________(notpass)thetestunlessyou_______(study)hard.reacheswillcallwanthurrywillbecriedheardcomeswillstopwon’tpassstudy专项练习五：语篇填空

阅读短文，用so…that/unless/assoonas填空，使语篇通顺连贯

Differentcountrieshavedifferentcustoms.1.____________yougotoaforeigncountry,

youshouldlearnitscustomsfirst.2._______youdon’tknowthecustoms,youmaymakemistakes.3.____________IarrivedinJapanlastyear,Ifoundthe

customswere4._______differentfromours5._______Ifeltsurprised.

Peoplebowtoeachother6._______theymeet.Youcan’tusetheirfirstnames7._______youknowthemwell.It’s8._______aninterestingculture9._______Iwanttolearnmoreaboutit.UnlessAssoonassothatassoonasunlesssuchthatAssoonas专项练习六：判断正误并改正

判断下列句子正误，对的打“√”，错的打“×”并改正1.It’ssuchcoldthatwestayathome.(

)改正：________2.Unlessyoudon’tstudyhard,youwillpasstheexam.(

)改正：________3.Assoonashewillcome,wewillhavedinner.(

)改正：________4.Sheissoalovelygirlthateveryonelikesher.(

)改正：________5.Youcan’tgooutunlessyoufinishyourwork.(

)改正：________6.ThemovieissomovingthatIcried.(

)改正：________××××√√It’ssocoldthatwestayathome.Unles