译林牛津版 9A Unit 8 Detective stories Grammar---时间状语从句公开课教学

till and until means “到……为止” ， In general they can be exchanged。 “not…until”means“直到……才（开 始）”eg:
Walk till/until you see a white house. I did not go to bed until I finished my homework.
A. while B. when
C. before
D. after
3.You should turn off the lights ________b_ eyfouorleeave the room.
= 4.
You should Tom went
ttoursnchooffolth__e__l_i_g_h_ thse__f_in__i_s_h_ ebde__hf__io_s_r_b_ertehaelkefraaosvotim.n.g
certain time.
1. You can’t watch TV____ you finish your homework. (2013 泰州)
A. after B. if
C. when
D. before
2.You should hand in your test paper __ you check it . (2014 常州)
时间状语从句
• 李素琴
• 中学一级教师， 曾获高邮市中 青年教师优秀 课比赛一等奖
adverbial clause of time
Nanhai Middle School Li suqing
Introduction to adverbial clause of time
Adverbial clause of time refers to the sentence which serves as the adverbial of time in the complex sentence
= Tom went to school _______a_ ft__e__r__ his breakfast.
after finishing
when the subject of the main sentence and clause of the subject are the same，We can leave out the subject
and add ing to the verb
Grammar A (Using before ,after, when &while)
九岁
When he was 9, he began to take
basketball training.
when means at a certain
Tip3 :
Usually we use before,after,when,while,since,till,until,as soon as and whenever to guide adverbial clause of time
presentation
We use the conjunctionsbefore, after, whenandwhile to introduce time clauses， They can be placed at the beginning or in the middle of sentences,eg:
Before means earlier than
Tip1 : a certain time.
After he took some basketball training, he showed his talent(才能) in the game.
Tip2 : After means later than a
Tip5 : Since means from a certain time.
in an ordinary way，The predicate of a clause is past tense(一般过去时)，And the predicate of the main sentence is Present Perfect Tense(现在完成时)
— Yeah. _______ my parents came here. (2014 南京)
A. For
B. As
C. When
D. Since
2. Tigers wait ___ it is dark, then go out to find their food. (201 徐州)
A. since B. until
What have we learned today?
since whenever
自从……
引导时间状语从句的谓语动词用一般过 去时, 主句的谓语动词用现在完成时。
每当; 任何时候 可以和every time替换。
Thanks for your attention!
as soon as means“一……就”。eg： We began to work as soon as we got there.
He will visit you as soon as he gets there. whenever means“每当，任何时候” He likes listening to music whenever he has time. tips：We can use “every time”instead of “whenever”.
game on TV.
3. W___h_e__n_e_v_ ehre talks about basketball, he gets
excited.
4. _A_s__s_o__o_n_ hase learnt that the NBA players
would come to China, he tried his best to get a ticket.
C1
Complete his
whenever.
sentences
with
as
soon
as
or
1. David often goes to play basketball
_a_s__s_o__o_n__asschool is over. 2. He watches the NBA _w__h__e_n__e_vtehrere is a
Adverbial Clauses of TIME: WHEN/ WHILE
when/ while
when means at or during a certain time
Sorry, I was out __w__h_e__nyou called me. I thought of it just___w_h_e__n you opened your
In positive sentences,The verb is usuall continuative 延续性 In negative sentences,The verb is usually Transient
短暂性
中考链接
1. — Have you been in Nanjing for a long time?
Grammar B (Using since, till, &until)
He did not get the chance to be worldfamous until he joined the NBA.
He practiced playing basketball very hard until/till 2011.
In positive sentences,The verb is usually continuative In negative sentences,The verb is usually Transien短t 暂性
Grammar C (Using as soon as & whenever)
When the weather is good, my grandpa likes going fishing. The sun came out after the storm stopped.
Grammar A (Using before fore he was born, many people believed that he would be a basketball star.
C. as
D. because
3. I ____go to bed _______ I finished my homework last night.
A. /, until B. not , until C. didn’t, until D. /, till
the use of until:
延续性
mouth.
W__h__e_n_/_W__h_i_le__he was a child，he was always
trying out new ideas.
W__h_i_le__ my sister was sweeping the floor, I was
washing the dishes.
while emphasizes that the action of the main sentence and the clause action occur at the same time
Tip6 : 1.Until and till means up to a certain time. 2.Until can be placed at the beginning or
in the middle of the sentence, but till is usually used _______in__th__e_m__id_d__le tohfe sentence.
time.（在某个特定的时间点）
While/When he was attending junior high,
he joined the Shanghai Youth Team.
When/While means during
Tip4 : a certain time.( 在特定的时 间期间)
at awcehrteainn time whduilreing(awcheretanin)time
Grammar B (Using since, till, &until)
When Yao Ming was 18 years old, he joined the national basketball team.
Since he joined it, he has won many competitions.