The boy has already come here.I haven’t heard anything from him yet. Notes 1: 我们肯定句中用 already ，否定句或疑问句中用yet.用never, ever
现在完成时的含义1. 表示已完成的某一动作对现在造成的影响 或结果e.g. I have cleaned the classroom, so it is clean. 2. 表示从过去已经开始，持续到现在的动作 e.g. We have l
twice 也可以是其他表示次数的词• He has bought the book. • He has bought the book for a week. • He has had the book for a week.buyhav
疑难易错考点（一）现在完成时与一般过去时所表示的动作都发 过去 生在过去，但二者有区别：一般过去时侧重于 影响 陈述一件过去的事情，与现在没有关系，有明 现在 显的过去时间状语；而现在完成时强调过去的 动作对现在的影响. A:我将不去电影院
11. for + 一段时间 （位于句末）12. since + 时间的起点（位于句末）13. How long 多久五、要点及难点区别：(1)_H_a_v_e_you ever _b_e_e_n_to Beijing? No, _n_e_
当有 so far, in/during/over the past/ last few days(在过去/最近的几年里)，since 接过去时间状语或过去时的句子等常用 现在完成时 (不能与确定的时间)• I’ve lived here
How long用于对以上两个时间短语提问for + 一段时间 since +过去时间点/句子(一般过去时）/时间段+ago1.I have lived here__si_n_ce I was born. 2. Bill has slept
Summary (1):我们用现在完成时谈论发生在过去， 但是对现在仍有影响的事.现在完成时 PK 一般过去时：1. She has cleaned the room.(房子现在是干净的)1.She cleaned the room. (房
2. A: 这本书我已经买了两年了A. : I`ve had the book for two years.B: 你在哪儿买的?B: Where did you buy it?A: 在我老家买的.A: I bought it in my h
尾加__e_d__,visitvisited visited以不发音的e 结尾直接加dlivelivedlived以母“ +y辅”结音尾字“不B把____eo__yi规d__改o,_再,成则k加A变csrtP化uy d14y见1-1s4ct
Let’s go to Paris with Mickey!1.Mickey h_a_s___ already __g_o_t _ (get) on the train to Paris.2. Some visitors _h_a_v_e_
注意：当在肯定句中含already或 just，变否定时，在句末加yet。● I have already seen the film. I haven’t seen the fi
=Five years has passed since I joined the army.（一）现在完成时与一般过去时的区别现在完成时表示过去发生或已经完成的 某一动作对现在产
Great changes have taken place in China in the past fifty years.We have learned 1000 words
Great changes have taken place in China in the past fifty years.We have learned 1000 words
The Present Perfect Tense(Glass begins: Stand up. Good morning, boys and girls. Good morning, Miss Liu. Sit down, please
B: For 6 years.Key wordsso far到目前为止have only ____________ planted We _______ 100 trees so far. (plant)Key wordsyet for j
