join the League-----be in the League / be a league member
火眼金睛
Correct the mistakes in the following
1、Tom has got up for half an hour. been up
sentences.
（五）延续性动词和短暂性动词转换归纳
A、leave— been away from die—be dead buy—have borrow—keep get up—be up put on—be on
come / get back—be back
lose—be missing close—be closed / not open
So far，many countries have sent up satellites into space. In the last 30 years， our lives have changed a lot.
(四） 现在完成时应注意的三个区别
1）延续性动词与短暂性动词的区别。
2）since 和 for 的区别。 3）have / has gone to； have / has been to； have / has been in 的区别。
４）just (刚刚）与现在完成时连用，just now (刚才） 与一般过去时连用。例如：
The train has just gone. 火车刚刚离开。
The train left here just now. 火车是刚才离开。 ５）since 作介词，后面跟时间名词一起作状语时，句子要用 现在完成时；since 作连词，引导状语从句时，主句用现在完 成时，从句用一般过去时。 He has worked in this factory since 1996. I have known him since he was a child. 6 ）so far，in the last / past ……与现在完成时连用。 例如 ：
(二）一般过去时态和现在完成时的区别
１）现在完成时是表示过去的动作与现在的联 系，主要说明的是现在的情况和状态；而一般 过去时则强调动作发生在过去某一时间，与现 在不发生联系。 例如：
We haven't seen him since last year. 我们自从 去年以来一直未见到他．（现在还未见到）
go to town—be in town
catch a cold—have a cold open—be open
fall ill / asleep— be ill / asleep begin /start—be on get /receive a letter from—have a letter from B、come to —be here / there arrive in （at）/ get to / reach——be here / there join the army-------be in the army/ be a soldier
The simple past tense
& The present perfect tense
（一）一般过去时态和现在完成时态的 概念
一般过去时表示在过去某个时间发生的动作或存在的 状态，也表示过去经常或反复发生的动作，常与 yesterdayast year、in 1965、 a moment ago 等表示过去的时间状语连用。 例如： He came here yesterday. 现在完成时表示过去的动作（或状态）对 现在产生的影响和结果．例如： He has broken his bottle.
2 、Liu Mei has joined the League for three years. been in
3、The train has reached the station since 10 been at minutes ago. 4、The little girl has fallen asleep for four hours. been asleep clean 5、When have you cleaned the classroom? did It’s clean now. 6、How long have you caught a cold? had 7、She has got ten letters from her mother since last
week.
had
七嘴八舌
1. 2. 3. 4. 5. 6. 7.
have been (be) busy these days. I ____________ I ___________ haven’t gone(not go) to the cinema for weeks. learnt (learn) so far? How many units ______ have you _______ Lily with her parents ________(go) to Sanya . They will has gone be back in five days. has dived Nobody __________(dive) in our class before. Alice _________(make) several friends since she ______ came has made (come) to China. driven Has ________ your brother_________(drive) a horse before? They _______________(stay) in the park during the past have stayed three hours.
We didn't see him last year. 我们去年没见到 他.（现在不一定未见到）
２）现在完成时表示从过去发生一直持续到 现在（包括现在）的某个动作或状态，与现 在有关的时间状语连用，一般过去时表示过 去某一特定（与现在无关）的时间，与具体 的表示过去的时间状语连用。例如：
He has lived here since he was born. 自他出生 以来一直居住在这儿。（since 自从…以来， 与现在有关，说明他还居住在这儿。） Liu Mei went to see her grandmother last night . 刘 梅昨晚去看了他外婆。（只说明昨晚）
（三）值得注意几个问题
１）动作发生在过去，一直持续到说话的时候，并 且还在延续时，要用现在完成时。例如： We have studied English for two years. 我们学英语 两年了 ２）指过去的经历，但没有表示过去的时间状 语，要用现在完成时。例如： I have been to Shanghai twice . 我曾去过上海两次． ３）以When开头的特殊疑问句，要用一般过去 时。例如： When did you lose your pen? 你什么时候丢了钢 笔？