Unit1 表语从句课件 【知识建构+精讲精练】高中英语人教版（2019）选择性必修第二册.pptx

Discovering useful structuresThe Predicative ClausesUnit 1 Science and Scientists谢引表表语语从句的定从句的定义义在主从复合句充当表在主从复合句充当表语语的从句叫的从句叫表表语语从句从句谢引表表语语从句的判断从句的判断1.What I want to say is that I am tired2.She doesnt know whether she likes him or not.3.He was sent to the hospital.Thats b b e e c c a a u u s s e e h h e e w w a a s s iillll.4.It sounds as if somebody was knocking at the door.5.The reason why he was late was that he missed thetrain this morning.谢引系系动词动词后后的成分为表语系系动词动词后后的从句为表语从句系动词主要是be动词（am,is,are,was,were)，意为“是”。

其它系动词：1)持续系动词（表示主语持续或保持一种状况或态度）：keep,remain,stay,stand2)“像”系动词（表示看起来像）：seem,appear,look3)感官系动词：look,feel,smell,sound,taste4)变化系动词（主语变成什么样）：become,grow,turn,fall,get,go5)终止系动词（主语已终止动作）：prove,turn out表表语语从句的判断从句的判断谢引引引导词导词用法用法从属从属连词连词that无成分，无意无成分，无意义义Whether无成分，意无成分，意为为“是否是否”连连接代接代词词what,which,who,whom,whose,wh+ever在从句中充当主在从句中充当主语语，宾宾语语，表表语语，定，定语语连连接副接副词词how,when,where,why however,whenever,wherever在从句中充当状在从句中充当状语语其它其它连连接接词词because,as if,as though因因为为，好像，似乎，好像，似乎表表语语从句的引从句的引导词导词谢引1.This isI want.I hate reading2.My English is limited.This isEnglish books.3.The village isI used to spend my holiday.I really love the way he behaves.5.The trouble iswe are short of funds.6.My problem iscoat is suitable for me.I want7.I d like to start my own businessthatsto do if I had the money.will support me.w_h_a_twh_e_r_ew_h_y4.It is _b_e_c_a_u_s_eth_at _wh_ic_hw_ha_t8.What I want to know is _w h_o即学即即学即练练谢引表表语语从句的从句的语语法法规则规则The question is how can I make you understand the knowledge.The question is how I can make you understand the knowledge.Rule 1:表表语语从句和从句和宾语宾语从句、主从句、主语语从句一从句一样样，要用要用陈陈述述语语序：主序：主语语+谓语谓语。

谢引The question is if it is worthwhile to do it.The question is whether it is worthwhile to do it.Rule 2:表表语语从句的引从句的引导词导词没有没有if!只用只用whether,不用不用if 的情况的情况:Whether to doWhetheror not介介词词后的后的宾语宾语从句从句从句：句首的主从句：句首的主语语从句；表从句；表语语从句；同位从句；同位语语从句从句表表语语从句的从句的语语法法规则规则谢引My proposal is that we(should)start early tomorrow.I propose that we(should)start early tomorrow.It is proposed that we(should)start early tomorrow.Rule 3:表表语语从句的虚从句的虚拟语拟语气气在表示在表示“建建议议，劝说劝说，命令，命令”的名的名词词idea,advice,suggestion,request,proposal 等后面的表等后面的表语语从句中，从句中，谓语动词谓语动词用用“should+动词动词原形原形”，should可省略可省略表表语语从句的从句的语语法法规则规则谢引Iy proposal is that we(should)start early tomorrow.propose that we(should)start early tomorrow.t is proposed that we(should)start early tomorrow.Rule 3:表表语语从句的虚从句的虚拟语拟语气气在表示在表示“建建议议，劝说劝说，命令，命令”的名的名词词idea,advice,suggestion,request,proposal 等后面的表等后面的表语语从句中，从句中，谓语动词谓语动词用用“should+动词动词原形原形”，should可省略可省略表表语语从句的从句的语语法法规则规则M advice,suggestion,proposal,recommendation,I demand,order,instruction,request,requirement,insistencedecision,idea,plan,wish,desire,谢引Dark clouds are gathering.It looks as if its going to rain.It seemed as if the night would never end.Rule 3:as if/as though 引引导导的表的表语语从句常跟在从句常跟在look,seem,sound,feel等后面等后面语语气：气：若表示真若表示真实实情况：用情况：用陈陈述述语语气气若表示非真若表示非真实实情况：用虚情况：用虚拟语拟语气气表表语语从句的从句的语语法法规则规则谢引The little boy talks as if he knew everything in the world.He felt as if he had met this young lady for a long somewhere.Rule 3:as if/as though 引引导导的的表表语语从从句句的的虚虚拟拟语语气气：若若跟跟现现在在事事实实不不符符：过过去去式式（be动动词词用用were）若跟若跟过过去事去事实实不符不符：had done若跟将来事若跟将来事实实不符：不符：would/could+动词动词原形原形表表语语从句的从句的语语法法规则规则谢引once.2.When a pencil is partly in a glass of water,it looks as if it(be)broken.(get)more people to attend(be)a grown-up.(be)ten years younger.1.My suggestion is that we _s_h_o_u_l_d g_o_ (go)to hospital at_we_r_e3.My idea is that we _s_h_o_u_l_d_g_e_tthe conference.4.The little girl talked as if she _h_a d_b_e_e_n5.She looks as if she _w_e_r_e即学即即学即练练谢引I couldnt tell you the truth.It is because I have to keepmy promise.I am late this morning.That is because I left my bag on the subway.Your speech is excellent.This is because you preparedit a lot.Rule 4:because引引导导表表语语从句通常只用于从句通常只用于 “This/That/It is because”结结构中。

构中表表语语从句的从句的语语法法规则规则谢引he couldntbus.表表语语从句的从句的语语法法规则规则She was late this morning.That was _b_e_c_a_u_s_e_ shemissed the early bus.He didnt found the key.That was _w h_yopen the door.The reason _w h_yhe was late was _t_h_a_t_ he missed the谢引he wasfired.he is careless andhe was1.He is careless and irresponsible.That was _w h_y2.He was fired.That was _b_e_c_a_u_s_eirresponsible.3.The reason _w_h yhe was fired was t_h_a_t careless and irresponsible.即学即即学即练练谢引P5 2.Answer the following questions using the information from the reading passage as well as the predicative clauses.EXAMPLEWhat Was it that John Snow showed to the world?What John Snow showed to the world was how cholera could be overcome.1.What was Snows discovery in two particularstreets in London?Snows discovery in two particular streets in Londonwas thatm_o_r_e t_h_a_n_50_0_p_e_o_p_l_e_die_d in t_e_n_da_y_s_._谢引2.What was Snow determined to find out during the 1854where4.What was the finding that Snow announced?outbreak of cholera in London?What Snow was determined to find out was why_t_he c_h_o_l e_r a o_u_t b_r_e_a k w_a_s_s_o_s_e_v_e_r e in t h_e_t_w_o_p_a_r_t i_c_u_l a_r_s_t r_e_e_t s_._3.What were the exact plac。