Unit1 表語從句課件 【知識建構+精講精練】高中英語人教版（2019）選擇性必修第二冊

Discoveringuseful

structuresThePredicative

ClausesUnit1Scienceand

Scientists謝引表語從句的定義在主從復合句充當表語的從句叫表語從句謝引表語從句的判斷WhatIwanttosayisthatIam

tiredShedoesn’tknowwhethershelikeshimor

not.Hewassenttothehospital.That’sbbeeccaauusseehhee

wwaass

iillll..Itsoundsasifsomebodywasknockingatthe

door.Thereasonwhyhewaslatewasthathemissed

thetrainthismorning

.謝引系動詞后的成分為表語。系動詞后的從句為表語從句系動詞主要是be動詞（am,is,are,was,were)，意為“是”。其它系動詞：1)持續(xù)系動詞（表示主語持續(xù)或保持一種狀況或態(tài)度）：keep,remain, stay,

stand2)“像”系動詞（表示看起來像）：seem,appear,

look3)感官系動詞：look,feel,smell,sound,

taste4)變化系動詞（主語變成什么樣）：become,grow,turn,fall,

get,go5)終止系動詞（主語已終止動作）：prove,turn

out表語從句的判斷謝引引導詞用法從屬連詞that無成分，無意義Whether無成分，意為“是否”連接代詞what,

which,

who,whom,

whose,

wh+ever在從句中充當主語，賓語，表語，定語連接副詞how,

when,

where,

whyhowever,whenever,wherever在從句中充當狀語其它連接詞 because,asif

,as

though 因為，好像，似乎表語從句的引導詞謝引1.This

isI

want.Ihate

reading2.MyEnglishislimited.This

isEnglish

books.3.Thevillage

isIusedtospendmy

holiday.I

reallylove thewayhe

behaves.5.Thetrouble

isweareshortof

funds.6.Myproblem

iscoatissuitablefor

me.I

want7.I‘dliketostartmyown

business—that’stodoifIhadthe

money.willsupport

me.w_h_a_twh_e_r_ew_h_y4.Itis_b_e_c_a_u_s_eth_at

_wh_ic_hw_ha_t8.WhatIwanttoknowis

_wh_o即學即練謝引表語從句的語法規(guī)則Thequestionishow

can

I makeyou

understandthe knowledge.ThequestionishowIcanmakeyou

understand

the knowledge.Rule1:

表語從句和賓語從句、主語從句一樣，要用陳述語序：主語+謂語。謝引Thequestionisifitisworthwhiletodo

it.Thequestioniswhetheritisworthwhiletodo

it.Rule2:表語從句的引導詞沒有if

!!!只用whether,不用if

的情況:Whetherto

doWhether……or

not介詞后的賓語從句從句：句首的主語從句；表語從句；同位語從句表語從句的語法規(guī)則謝引Myproposalisthatwe(should)startearlytomorrow.Iproposethatwe(should)startearly

tomorrow.Itisproposedthatwe(should)startearly

tomorrow.Rule3:

表語從句的虛擬語氣在表示“建議，勸說，命令”的名詞idea,advice,suggestion,request,proposal等后面的表語從句中，謂語動詞用“should+動詞原形”，should可省略表語從句的語法規(guī)則謝引Iyproposalisthatwe(should)posethatwe(should)startearly

tomorrow.tisproposedthatwe(should)startearly

tomorrow.Rule3:

表語從句的虛擬語氣在表示“建議，勸說，命令”的名詞idea,advice,suggestion,request,proposal等后面的表語從句中，謂語動詞用“should+動詞原形”，should可省略表語從句的語法規(guī)則M?advice,suggestion,proposal,

recommendation,I?demand,order,instruction,request,requirement,

insistencedecision,idea,plan,wish,

desire,謝引Darkcloudsaregathering.Itlooksasifit’sgoingtorain.Itseemedasifthenightwouldneverend.Rule3:asif/asthough

引導的表語從句常跟在look,seem,sound,

feel等后面語氣：

若表示真實情況：用陳述語氣若表示非真實情況：用虛擬語氣表語從句的語法規(guī)則謝引Thelittleboytalksasifhekneweverythinginthe

world.Hefeltasifhehadmetthisyoungladyforalong

somewhere.Rule3

:

asif/as

though

引導的表語從句的虛擬語氣：若跟現(xiàn)在事實不符：過去式（be動詞用were）若跟過去事實不符：had

done若跟將來事實不符：would/could+動詞原形表語從句的語法規(guī)則謝引once.2.Whenapencilispartlyinaglassofwater,itlooksasif

it(be)

broken.(get)morepeopleto

attend(be)a

grown-up.(be)tenyears

younger.1.Mysuggestionisthatwe_s_h_o_u_l_dg_o_(go)tohospital

at_we_r_e3.Myideaisthatwe

_s_h_o_u_l_d_g_e_tthe

conference.4.Thelittlegirltalkedasifshe

_h_ad_b_e_e_n5.Shelooksasifshe

_w_e_r_e即學即練謝引?Icouldn’ttellyouthetruth.ItisbecauseIhaveto

keepmy

promise.?Iamlatethismorning.ThatisbecauseIleftmybagonthe

subway.?Yourspeechisexcellent.Thisisbecauseyou

preparedita

lot.Rule4:

because引導表語從句通常只用于“This/That/Itis

because…”結構中。表語從句的語法規(guī)則謝引he

couldn’tbus.表語從句的語法規(guī)則Shewaslatethismorning.Thatwas_b_e_c_a_u_s_e_shemissedtheearly

bus.?Hedidn’tfoundthekey.Thatwas

_wh_yopenthe

door.?Thereason

_wh_yhewaslatewas_t_h_a_t_

hemissed

the謝引he

wasfired.heiscareless

andhe

was1.Heiscarelessandirresponsible.Thatwas

_wh_y2.Hewasfired.Thatwas

_b_e_c_a_u_s_eirresponsible.3.The

reason

_w_hy hewasfired

was

t_h_a_t

carelessand

irresponsible.即學即練謝引P5 2.Answerthefollowingquestionsusingtheinformation

from

thereadingpassageaswellasthepredicative

clauses.EXAMPLEWhatWasitthatJohnSnowshowedtothe

world?WhatJohnSnowshowedtotheworldwashowcholeracouldbe

overcome.1.WhatwasSnow’sdiscoveryintwo

particularstreetsin

London?Snowsdiscoveryintwoparticularstreetsin

Londonwas that m_o_r_et_h_a_n_50_0_p_e_o_p_l_e_die_dint_e_n_da_y_s_.

_謝引2.WhatwasSnowdeterminedtofindoutduringthe

1854where4.WhatwasthefindingthatSnow

announced?outbreakofcholerain

London?WhatSnowwasdeterminedtofindoutwas

why_t_hec_h_o_le_rao_u_tb_r_e_akw_a_s_s_o_s_e_v_e_rein

th_e_t_w_o_p_a_r_ti_c_u_la_r_s_tr_e_e_ts_._3.Whatweretheexactplaces(Snowmarkedonthe

map?)TheexactplacesSnowmarkedonthemapwerea_l_l_tho_s_e_wh_o_d_i_e_d_h_a_d

li_v_e_dw_a_t_e_r_c_a_r_r_ie_dSnow'sfindingwasthat_t_h_e

p_u_m_pcholera

germs..謝引P5 3.DavidistalkingtoMaria

abouttheirscientificresearchproject.FirstcompleteDavid'slines(A-E,usingthewordsinthebox.ThenputDavid'slinesinthecorrectorderandpracticetheconversation.謝引A:Absolutely!Youmaynotbelieveit,but

that

was

happenedattheinitialstageofourgroup'sresearchon

developing

avaccinefor

malaria.B:Yes,itis.And

it

seemed

allthetheorieswereuseful,

butthe

fact

was

wecouldn'tpersuadeoneanotherthat

one

theorywasbetterthan

another.C:ExactlyTheproblemwas

not

about

allourtheories

wereequallygood,but

in

deciding.

theorytodepend

upon.D:Werealisedthatwhatwecaredabout

was

not

asp