主 - 复合句和时态.ppt

主从复合句;2. 从句语序 陈述语序 eg. … what will the weather be like. 3. 时态 （1）主句为一般现在时态，从句根据真实情景判断 eg. He says he ______ (study) for an hour last night. （2）主句为一般过去时态，从句时态向前推。 -s ---- -ed can --- could am/is/are doing --- was/were doing will --- would am/is/are going to do --- was/were going to do 4. 客观真理 （任何情况下都用一般现在时态）;Ⅱ 状语从句 1. 时间状语从句 when, while, after, before, until, not…until 2. 条件状语从句 if 3. 原因状语从句 because 4. 让步状语从句 Although/Though …, …;Exercises;3. – Do you know __? - Yes. He came here by train. A. when he came here B. if he will come here C. why he came here D. how he came here 4. If you __ him tomorrow, please ask him if he __ to work on the farm with us. A. see, goes B. will see, goes C. will see, will go D. see, will go;5. I didn’t go to bed __ I finished my work. A. until B. because C. while D. when 6. __ there are few new words in this lesson, it’s difficult for me to understand. A. Because B. Though C. As D. If 7. When I was a little kid, I knew the sun __ from the east. A. raised B. raises C. rised D. rises;时态;4. 句式 There will be less pollution. (疑问，否定) People will travel to the moon (疑问，否定) I will go hiking with my parents this short vacation.(对划线部分提问);Ⅱ 一般过去时态 1. 构成 -ed (不规则变化) 2. 意义 事情发生在过去 （强调过去，且已经完成） 3. 时间标志 yesterday, …ago, last night…, the day before yesterday, in 2000, just now, at the age of, He said… …when I was…, once;4. 句式 There was more pollution before. (疑问，否定) I went hiking with my parents last vacation.(疑问、否定、对划线部分提问);Ⅲ 过去进行时态 1. 构成 was/were (not) doing 2. 意义 过去某个时间点正在发生，或某个时间段一直发生的事情 3. 时间标志 at 8 o’clock last night, at this time yesterday, on those days … when I came in., … while … all this morning （情境）;Exercises;6. There ______ (be) a midterm test next week. 7. I’m sorry you _____ (miss) the la