Lessons 115 -116 Knock, knock! 一.知识点：1、Isnt there anyone at home? （There be句型） 复合不定代词 anyone 看作单数，用在疑问句和否定句中。2、Ill knock again. knock at/on the door 敲门。 3、Everythings very quiet. 复合不定代词 everything 看作单数，用在肯定句中。 4、Im sure theres no one at home. 宾语从句。= There isnt anyone at home. 复合不定代词 no one看作单数，本身表否定。 5、But thats impossible. 【广告】Nothing is impossible. Anything is possible. 6、Carol and Tom invited us to lunch. invite sb. to sth./do sth. 邀请某人参加某项活动
