時(shí)間與原因狀語從句市公開課金獎(jiǎng)市賽課一等獎(jiǎng)?wù)n件

1、 Adverbial clausesof time / reason（時(shí)間、原因狀語從句）1第1頁Adverbial clause of time:when, while, asbefore, aftersince, till/until, by the timeas soon as = the moment hardlywhen = no soonerthanthe first time, every/each timewhenever等 2第2頁when (特定時(shí)間或一段時(shí)間) 當(dāng)時(shí)侯-When I was a boy, I rode to school. -When the lesson

2、 was over, we walked out of the lab. 就在那時(shí) -I was doing my homework when the light suddenly went off.-He was about to sleep when someone knocked at the door.when / while / as區(qū)分過去進(jìn)行時(shí)過去未來時(shí)3第3頁while (一段時(shí)間) 當(dāng)時(shí)侯(從句謂語必須是連續(xù)性動(dòng)詞, 用進(jìn)行時(shí)或“be+表語”)-While Mary was cooking, the children were playing outside. -Strike

3、 while the iron is hot. 然而 (并列句, 側(cè)重對(duì)比)-You are sitting while I am standing. 即使(讓步狀語從句, 放句首)-While I admit his good points, I can see his shortcomings. when / while / as區(qū)分趁熱打鐵。4第4頁as 當(dāng)時(shí)侯(側(cè)重同時(shí)發(fā)生)-As I was a child, I showed much interest in insects. 一邊一邊-He often does homework as he listens to music. 伴

4、隨. -As times goes on, Im getting older and older.when / while / as區(qū)分5第5頁-It was midnight before he came back.午夜他才回來。-Before I could say a word, she had run out of the room.沒等我開口, 她就跑出了房間。before使用方法before有時(shí)譯成“(之后)才”, “還等就” 6第6頁before使用方法-It will be five years before I come back.我五年之后才能回來。-It was not

5、long before the enemy was driven out of their country.很快之后敵人就被趕出了他們國家。It + be + 一段時(shí)間 + before 句型“在之后才”注意:主句用否定式，譯成“不多久就”-It wont be long before they understand each other.很快他們就會(huì)相互了解。時(shí)態(tài)主將從現(xiàn)或前過后過7第7頁-It is/has been 11 years since I came to Shanghai. -It is/has been three years since I joined the Party

6、. It is/has been + 一段時(shí)間 + since 句型 “自從.以來已經(jīng)有.(時(shí)間)了”since使用方法注意:主句時(shí)態(tài) 從句時(shí)態(tài)普通現(xiàn)在時(shí)/現(xiàn)在完成時(shí)普通過去時(shí)8第8頁直到他生病他才意識(shí)到健康主要性。(Not until)-Not until he was ill did he realize the importance of health.-It was not until he was ill that he realized練一練半倒9第9頁by the time 主句時(shí)態(tài)？-By the time he was fourteen, he _ (teach) himse

7、lf advanced mathematics.想一想過去完成時(shí)或未來完成時(shí)had taught10第10頁the momentthe minutethe instantimmediatelydirectly一就as soon as-I recognized her the moment I saw her.-He cried the moment he heard the bad news.11第11頁HardlywhenNo soonerthanScarcelywhen一就as soon as-Hardly/Scarcely had I got home when it began to

8、rain.-No sooner had I sat down than he stepped in.12第12頁HardlywhenNo soonerthan注意:時(shí)態(tài)搭配及拼寫半倒語序前過去完成時(shí)后普通過去時(shí)我一進(jìn)房間就聽見他哭聲。(Hardly)-Hardly had I entered the room when I heard his cry.助動(dòng)詞或情態(tài)動(dòng)詞提到主語前13第13頁-I thought her nice and honest the first time when I met her.-Every time I went to his house, he was out

9、.-Next time I see you, Ill show you my new apartment. the first time 第一次every/each time 每次next time 下一次名詞短語=連詞, 直接加句子14第14頁全部時(shí)間狀語從句謂語都不用未來時(shí)，即所謂“主將從現(xiàn)”。 15第15頁II. Adverbial clause of reason:becauseassince, fornow that等 16第16頁because / as / since /, for區(qū)分because “因?yàn)椤敝苯釉? 回答why, 語氣最強(qiáng)-He didnt come because he was ill.as “因?yàn)椤憋@著原因, 語氣最弱-As it is raining, wed better stay inside.17第17頁because / as / since /, for區(qū)分since “既然”= now that 已知原因,