1、1) 一般过去时表示过去的事实, 强调动作发生的时间、地点、方式; 2) 而现在完成时表示过去动作与现在的关系, 强调对现在的影响或产生的结果.,例: 1. I had my lunch at twelve at school. 我十二点在学校吃的午饭。 (强调吃饭的时间、地点, 不涉及现在情况) 2. I have had my lunch. 我吃过午饭了。 (强调吃饭对现在的影响是饱了, 不须再吃了),3) When/ Where did you have it? 什么时候/在哪儿吃的? (不管问时间还是地点, 都与现在无关, 故用一般过去时),2. 非延续性动词 (也称点时间动词) 的用
2、法 常用的非延续性动词, 如 come, go, leave, arrive, join, die, begin, finish, open, close, buy, borrow, get up等, 它们的完成时不能与段时间状语连用, 若句中有表示一段时间的状语, 需将非延续性动词改为延续性动词形式。,例: (误) He has come to Jinan for two weeks. (正) He has been in Jinan for two weeks. 1). come to sp.= be in sp. 2). go to sp. = be in sp.,3) leave =
3、be away (from)例: They left the town two days ago. They have been away from the town since two days ago.,4) join = be in = be a member of/be a .member例: She joined the League three months ago. She has been in the League for three months.,She has been a member of the League for three months.She has be
4、en a League member since three months ago.,5) die = be dead例: The man died five years ago. The man has been dead for five years.6) begin = be on例: The film began ten minutes ago. The film has been on since ten minutes ago.,7) buy = have例: We bought the house two years ago. We have had the house for
5、two years.8) borrow = keep例: She borrowed the books a week ago. She has kept the books for a week.9) open = be open; close = be closed get up = be up finish = be over;,3. 固定句式: It is / has been + 段时间 + since 从句 (用一般过去时）例: It is has been two days since he left for America. It is /has been a year sinc
6、e they joined the army. It is / has been ten years since the hospital opened.,1. I remember meeting all of you in Grade 6. remember doing sth . 是“记得曾做过某事”。如: I remember posting the letter. 我记得 (已) 把信寄了,Explanation,提示remember to do sth. 是“记住要去做某事”。如:Remember to post the letter. 记住要发那封信。,2. used to be
7、 sacred of a teacher used to + do: “过去常常”表示过去习惯性的动作或状态, 但如今已不存在。 Mother used not to be so forgetful. Scarf used to take a walk. (过去常常散步),be used to + doing: 对已感到习惯, 或“习惯于”, to是介词, 后需加名词或动名词。He is used to smoking. He is used to taking a walk. (现在习惯于散步),3. I have the ability to do good work. ability 为
8、名词, 通常会用在表达 a. 有能力去做什么事 ability to do sth 例: He has the ability to get the job done quickly. 他有能力把工作迅速完成。,指有什么样的能力reading/writing/teaching/acting ability例: Noels writing ability was confirmed at a fairly young age. 诺尔的写作能力在很年轻的时候就被肯定了。,在哪种学科或语言上的能力 ability in 例: I want to improve my ability in Mathe
9、matics. 我想要改善我的数学计算能力。be able to为动词词组 表示人能够做什么, 而且通常是不令人惊讶的一般能力,例: Will you be able to get out of bed after a few days? 你几天后就能够下床了吗？例: Lily is able to play with us on Sunday. 连恩星期天就能和我们一起出去玩了。,4. I want to make my parents and teachers proud of me. proud a. 骄傲的,自豪的例句: Tom is very proud of his new car. 汤姆非常满意自己的新车。 They were poor but proud. 他们虽然穷, 但很有骨气。,
