Unit8 From hobby to career知識點整理
1. 從句的動作和主句動作同時發生，意為“當……時；在……的時候”，例如：
he liked playing basketball when he was young. 他年輕的時候，就喜歡打籃球。
2. 從句的動作發生在主句動作之前，例如：
when you get there, please tell lucy to call me back. 你到那后，請告訴露西給我回電話。
come here to find me when you finish you homework.你做完作業后，來這兒找我。
3. 我們也可用after, before, until等連詞引導時間狀語從句。如：
after simon does his homework, he listens to music.西蒙做完家庭作業后，他就去聽音樂。
before mary went to bed, she drank some milk. 瑪麗在睡覺之前，喝了些牛奶。
注意：當主句是將來時的時候，從句要用一般現在時。
— i want to know when mr. brown will arrive. — when he ______, i will tell you.
a. will arrive b. arrived c. arrives d. arrive
【used to的用法】
used to意為“曾經；以前”，用來談論過去常常做某事。其句型的變化形式如下：
句型變化 used to
陳述句 (主語+ used to do) lily used to learn to play the piano at school.
莉莉曾經在學校里學習彈鋼琴。
否定句 (主語+ did not + use to do) lily didn't use to learn to play the piano at school.
莉莉以前沒有在學校學習過彈鋼琴。
一般疑問句 (did+主語+use to do) did lily use to learn to play the piano at school?
莉莉曾經在學校學習過彈鋼琴嗎？
特殊疑問句 (what + did+主語+use to do) what did lily use to do at school?
莉莉以前在學校干什么？
拓展：
be used to doing sth. 習慣于做某事 be used to do sth. 被用來做某事 (表示被動)
eg: she is used to taking a walk after dinner. 她習慣晚飯后散步。
knives are used to cut things. 刀被用來切東西。