高考英语状语从句课件(共50张PPT)

2. It was not long _b_e_f_o_re_ he left his hometown.
3. I played football _a_ft_e_r_ I (had) finished my homework
4. Please tell her I’ll come __a_ft_e_r__ I do some shopping.
小结： till, until和not…until： 1.until/till引导时间状语从句用于肯定句时， 主句的动词是延续性动词，表示动作或状 态一直持续到until/till所表示的时间，意为 “某动作一直延续到某时间点才停止”。 如：
We waited until he came.
2．用于否定句时，主句谓语动词是非延 续性动词，从句为肯定，意为“某动作 直到某时间才开始”。如：
3) _原__因___ 4) __目_的______ 5) _结__果____ 6) _条__件______ 7) _方__式____ 8) _比__较______ 9) _让__步____等
一. 时间状语从句的引导词
1. when, while , as, before, after, until, till, since, ever since, once, as soon as ， 2. every time, next/last/each time, the first time, the moment, the minute, the instant
When/While/As I was walking down the street, I came across an old friend of mine.
before,after,since 1. He had left the town the day _b_e_fo_r_e_
she arrived.
二. 地点状语从句: where, wherever
You would let your children play where you can see them. Wherever you are, I will be right there waiting for you.
where指“在某个地方”， wherever指“无论哪里，在任何一个地 方”
He won’t go to bed till/until she returns. 3．till不可以置于句首，而until可以。如：
Until you told me I had no idea of it. 4．not…until句型中的强调和倒装说法： It was not until you told me that I had any idea of it. Not until you told me did I have any idea of it.
his own son. ( )
•9.He woke up as suddenl方y a式s he had fallen
asleep. ( )
比较
一个句__子__在复合句中用作状语时,在语法上叫 状语从句。从句由__从__属__连_ 词、_名__词__词__组_或 __副__词___引导。 状语从句可分为：1) _时__间___ 2) _地__点______
一…就… 1._T_h_e__m_oi_llm.__e_n_t_/ _m_i_n_u_te_/_I_m__m_e_d_i_a_te_l_y_/_ _A__s_s_o_o_n__a_s_ he saw the monster, he
turned pale.
2、 The spy had _n_o_s_o_o_n_e_r_ returned home than he was told to go to another country.
()
结果
•6. As long as you don’t lose heart, you’ll
succeed. ( ) 条件 •7. Try as he might, he could not find a job.
() •8. The ol让d l步ady treats the boy as if he were
It is four days since she was ill. 从句谓语动词为延续性动词，表示“自…… 结束以来，已经过去多长时间了”。Байду номын сангаас
till 与until: 1. He lived with his parents _t_il_l/_u_n_t_il_ he graduated from college.
在使用时： 一、要注意两者的含义区别。 二、要注意状语从句和定语从句的区别。 三、要注意在状语从句中不可使用介词 +which引导。出题者既考状语从句又考 定语从句和状语从句的区别。还加入名 词性从句这一干扰项。
1.If you are traveling__D__the customs are
3. immediately, instantly, directly
4. hardly…when, no sooner…than, scarcely…when
when, while, as 1.W__h_i_le_/_A_s_/_W__h_e_n__ we were talking, Mr.
Smiths came in. 2._W_h_e_n_ they came home, I was cooking
词时, 只能用while; while还可作并列连 词,表示”而”.
I was reading while he was watching
TV.
3．as 的用法：
(1) as 着重强调主句和从句的动作同时或几乎 同时发生，如：
The students rose as the teacher entered the classroom. (2)as还可以表示“随着……”，如：
5. It will not be long ___b_e_f_owree meet each other again.
6. I _h_a_v_e__b_e_e__n(be) at his bedside since he _______b(ebceacommee) ill.
7. Itw_ies___/ __h__a__s____b__e_(e_bn_eg(ibne))ttowuoseyetahriss since machine. began
face.
连接词when、while、as的用法小结 1、when 的用法： （1）when引导的时间状语从句的谓语动 词可以是延续的，也可以是表短暂性动作 的动词，可用于主句和从句动作同时发生 或从句动作先于主句动作。如：
When the film ended, the people went
back.
dinner. 3. I was about to go to bed _w_h_e_n___ I
heard someone knock at the door. 4. _W__h_il_e___ we were watching TV, he
was studying. 5. He is fat __w_h_i_le__ his brother is thin. 6. _A__s___ she sang, tears ran down her
Conclusion: 1）句型It will be/was＋一段时间＋before… “还要过多久才……” 如：
It will be two years before he leaves the country. 2）句型It will be/was not＋一段时间＋ before… “不多久就……”，如：
When I lived there, I used to go to the
seashore on Sundays.
（2）可用作并列连词，其意义为“那时， 这时”，相当于and at this/that time。 常用于句式：
Somebody was doing something when… Sb. was about to do sth. when… (刚要……这时突然……)
刚……就
A. 时态：主句用过去完成时（had + p.p.）
从句用一般过去时
B. 倒装： no sooner/hardly/scarcely放句首， 主句要到装
She had no sooner arrived at the station than the train started to move. No sooner had she arrived at the station than …. He had hardly entered the hotel when it began to snow. Hardly had he entered the hotel when it began to snow
As time goes by, it is getting colder and colder. (3) As 还能表示“一边……一边”，如：
He looked behind from time to time as he went.
4．如果主句表示的是短暂动作，而从 句用延续性动作的进行时态表示在一 段时间内正在进行的动作时，when, while与as 可互换使用。如：
2、连接词while的用法 （1） while意思是“当……的时候”或 “在某一段时间内”，引导的从句动作必 须是持续性的，侧重主句动作和从句动作 相对比。
People don’t talk so loudly while
others are working. （2）从句和主句的谓语动词都为延续性动
It was not long before he worked out the problem.
3）句型It be＋一段时间＋since… ,该句型主 句和从句中动词谓语时态的搭配很严格。 It is/has been … since sb. did sth. 如： It is three years since she joined the army. 从句动词为瞬间动词，表示“自……以来， 已经过去多长时间了”。
判断下列状语从句的种类
1.While I was wondering at this, our
schoolmaster took his place. ( 时间 )
2. Where there is a will, there is a way.
( 地点 )
3. Now that/Since everybody is here, let’s
2. Not _u_n_ti_l he told me did I know the truth.
3. The children _w_o_n__’t_c_o_m__e_ (will come) home until/ till it’s dark.
4. It was _n_o_t_u_n_t_il__ the war was over that he returned to his land.
begin our meeting. （
原） 因
4. I’ll speak slowly so that you can
understand me. ( 目的 )
5. So clever was he a student that he was
able to work out all the difficult problems.
3、We had _h_a_r_d_l_y_/s_c_a_r_c_e_ly__returned home when it rained.
4、H__a_rd_l_y_/_S_c_a_r_c_e_ly__ had we begun when we told to stop.
5) no sooner…than hardly/scarcely…when