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课件网) Unit 3 Language in use Module 3 Journey to space 能根据图片完成与主题相关的写作任务； 1 3 能了解关于太空的信息，介绍人类对太空的探索，培养探索精神。 完成Unit 3练习题，复习现在完成时态的用法; 2 学 习 目 标 I've just madea model spaceship.Wehave not foundlife on any other planets yet.Astronautshave already been tothe moon.Hasitarrived yet 课 堂 导 入Grammar现在完成时用表达什么意义呢？当我们要表达“某人曾经做过某事”,“某人已经做了某事”或者”某人刚刚做了某事”等意思时,英语要用“现在完成时”来表达。课 堂学 习否定句Ihave notworked.He/Shehas notworked.Theyhave notworked.肯定句I have worked.He/She has worked.They have worked.haven’thasn’thaven’t现在完成时的结构：has/have + done (动词过去分词)Grammar肯定句：Sb. +haven’t/hasn’t +done+….一般疑问句:Have/ Has + sb. +done+….特殊疑问句：Wh- (疑问词)+have/has + sb.+ done+….现在完成时的句式结构：Grammar与现在完成时连用的几个副词：1.肯定句:2.疑问句和否定句:注意：yet常置于句末，而already, never, ever, just一般置于助动词have/has之后，动词过去分词之前。already, justever, yet, neverGrammar现在完成时的标志词：A: Have you… B: Yes, …/ No, …(usingalready,just,ever,yet,never)Pair work【辨析】have been to 与 have gone to （1）have gone to表示“已到达某地”。说话时该人不在现场，强调尚未回来（go是方向性动词）。 例：—Where is Jim 吉姆在哪里？ —He has gone to Beijing 他去北京了。 （2）have been to表示“曾经去过某地”。现在已经不在那里了（be是表示状态），后可接次数，如once、twice、three times等，表示“去过某地几次”。也可和just、never和ever等连用。 例：I have been to Beijing twice. 我去过北京两次。 【拓展】have been at/in表示“在某地待了多少时间”，常与时间段状语连用。 例：I have been in Shanghai for three years. 我来上海已有三年了。 1.我父母曾经坐船去大连旅游。2.她已经完成作业。3.我父母未曾坐船去过大连旅游。My parents have travelled to Dalian by ship.She has finished her homework.My parentshavenevertravelled to Dalian by ship.Exercises：翻译下列句子4. 她还没有完成作业。 5. 你父母曾经坐船去大连旅游过吗？ 6. 她已经完成作业了吗？ Have your parents travelled to Dalian by ship Has she finished her homework She hasn’t finished her homework. Spaceship on MarsAstronautshave _____ been to the moon but they have not been to any other planets.However, a spaceship has _____ arrived on Mars and it has _____ sent back photos of the red planet. Is there life on Mars We do not know _____.1.Complete the news withalready, justandyet.alreadyalreadyjustyetA1The spaceship has gone to Mars. It has gone there, but it has not come back yet. Astronauts have been to the moon. They went there and then they came back. Look at these sentences. A2 1. Astronauts have been / gone to the moon and returned. 2. The spaceship has been / gone into space. It will travel for ten days. 3. The astronaut has been / gone to the space station. He will come back tomorrow. 4. The spaceship has been / gone to the space station. It brought back two astronauts. Now choose the correct answer. have ... ...
