2.名词性物主代词相当于一个名词, 作主语, 表语, 宾语

　　　 　　a. His brother is a driver; mine is a worker.

　　　 　　b. These books are mine.

　　　 　　c. You can use my bike and I may use hers.

1.形容词性物主代词相当于一个形容词, 作定语, 如: our work, her students, their house

3.关于人称代词用法需注意的问题:

　　 ①.在than / as引导的比较状语从句中常有省略, 注意其中的人称代词作主语用主格, 作宾语用宾格. 在这类从句中, 在不引起误解的情况下, 有时用宾格代词代替主格代词

　　　 　　a. He likes Mary better than I ( like Mary ).他比我更喜欢玛丽

　　　 　　b. He likes Mary better than ( he likes ) me他喜欢我,更喜欢玛丽

　　　 　　c. He is taller than I / me.

　　 ②.在强调句中, 若被强调的部分是代词, 则其格不变, 如:

　　　 　　a. It was I who first opened the door this morning.

b. It was me whom they talked about.

　 　③.人称代词单独使用或是在not之后, 常用宾格

　　　 　　a. “ I like English. ” “ Me too.”

　　　 　　b. “ Would you like more wine ?”　 “ Not me.”

　 　④.在同位语中, 人称代词的格视与之同位的词在句中的成分而定, 如:

　　　 　　a. We, Tom and I, showed her many wonderful pictures.

　　　 　　b. She showed us, Tom and me, many wonderful pictures.

　 　⑤.人称代词在代替一些不定代词, 如: anybody, everybody, anyone, someone, no one, whoever及person等这些无明确对象的代词或名词时, 在正式场合用he / his / him代替, 在非正式场合用they / them / their代替, 如:

　　　 　　a. Nobody came, did he/they ?

　　　 　　b. Whoever comes, tell him / them the news.

⑥.在be或to be之后的人称代词的格应根据它所指代的名词或代词在句中的成分而定

　　　 　　a. I thought it was she. / I thought it to be her.

　 　　b. I was taken to be she.我被当成了她. / They took me to be her.他们把我当成了她

⑦.在口语中常用宾格代词作表语

a. “ Who is that ? ”　 “ It is me. ”

⑧.they可指“有关的人” “人们”, 相当于people, 如:

　　　 　　a. They say the fire broke out at midnight. = People say the fire broke out at midnight. / It is said that the fire broke out at midnight.

　 　⑨.三个人称代词同时出现时, 其顺序一般是: 你, 他/她, 我; 我们, 你们, 他们

　　　　 a. You, he and I all enjoy music.

物主代词

表示所有关系的代词称为物主代词

2.宾格的用法: 作及物动词的宾语或介词的宾语.

　　　 　　a. Mr. Li teaches us English.

　　　 　　b. We often go and see her on Sundays.

　　　 　　c. You are really above me in maths.

d. Father bought a new bike for him.

1.主格的用法: 作主语, 表语

　　　 　　a. He often helps me with my English.

　　　 　　b. It is he who often helps me with my English.

2． 初步了解广义相对论时空结构及重要实验观测证据

[教学重点]

了解广义相对论“等效原理”

[教学难点]

物质的引力使光线弯曲

[疑点]

是引力使时空发生弯曲还是时空弯曲使物体受到引力

[易错点]

光在真空中一定沿直线传播

[思想方法]

等效替代的方法

[教材资源]P₁₂₀第一题

1． 　初步了解广义相对性原理和广义相对论等效原理

2．　 　物体的质量会转化为能量

[思想方法]

　　 　自洽性检验的方法

[教材资源]P₁₁₇第3题

　　　　　　　 　第四节：广义相对论简介

[学习目标]