Unit 4 I have a pen pal 知识点汇总

Unit 4 I have a pen pal知识汇总 询问某人的爱好 问：What be sb’s hobby(hobbies)? 答：1.Sb’s hobby(hobbies) be + doing sth. （某人的爱好是......） Sb like(s) doing sth.某人喜欢...... 例：你的爱好是什么？ What is your hobby ? My hobby is playing the pipa. What are your hobbies ? My hobbies are reading books and playing football. 注： 1.问句中如果是名词修饰“爱好”应变为名词所有格。 2.如果是代词应变为形容词性物主代词。 3.注意“爱好”的单复数情况，如果是单数be动词用is，如果是复数，be动词用are。 4.sb代表某人；sb’s代表某人的；主语为“爱好” 重点词的用法 1.interesting有趣的； 主语通常为：物 The book is very interesting. interested感兴趣的；主语通常为：人 Be interested in +代词/名词/doing sth I am interested in the book. I am interested in playing football. 2.“也”：too/also/as well/either的区分 ①too用于肯定句或疑问句中，位于句尾，通常前有逗号隔开。He is an English teacher,too. ②also用于肯定句或疑问句中，位于句中，放于情态动词、be动词、助动词之后，实意动词之前。 ③either用于否定句中，位于句尾，通常前有逗号。 ④as well 用于肯定句中或疑问句中，位于句尾，前无逗号。 I am a student,too = I am also a student. I have a pen,too 否定句：I don't have a pen,either =I also have a pen. =I have a pen as well. I can swim,too=I can also swim.= I can swim as well. 注：当句中既有be动词又有情态动词时，also放于中间。I will also be a teacher. 3.“和”and与or ①and表示“和”，用于肯定句和疑问句中。 I have a ruler and an eraser. ②or表示“和”，用于否定句中。 I don’t have a ruler or an eraser. 注：在否定句中，连接主语的and不变；or在肯定句中或疑问句中表示“或者”。 John and Sarah like red and blue. John and Sarah don’t like red or blue. 4.teach sb to do sth.教某人做某事。 Mr.Hao teaches me to play football. write an email to sb.给某人写电子邮件。 I often write an email to my pen pal on Mondays. share sth with sb.与某人分享某物。 I will share my happiness with my friends. 表达时间的相关介词 ①at用于具体时刻前；如：at 6 o’clock,at 8:30 ②on用于具体某一天，或某一天的上、下午、晚上。 如：on Monday morning. ③in用于年、月、季节或泛指的上下午晚上。 in 2008;in March;in spring;in the morning. 注：在中午at noon，在晚上at night。小于一天。 动词单三的变化 在一般现在时中，当主语为第三人称单数时，动词变单三。 have的单三是has 一般动词在词尾加s；如：play-plays；eat-eats 以字母s，x，ch，sh结尾的动词加es；watch-watches 以o结尾的动词一般加es；如：do-does；go-goes 以辅音字母加y结尾的动词，先变y为i，再加es。 如：study-studies fly-flies ... ...