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1 You have just come back from you hometown. 你刚从你的城镇回来。
现在完成时 ：之前已经发生或完成的动作对现在造成的影响或结果。结构：
助动词have/has +动词的过去分词
I have finished that work. 我已经完成了那项工作。 She has bought a new bike. 她买了一辆新自行车。
2 have/has been to...去过……。
e.g. He has been to Hubei. 他去过湖北。（人已不在湖北，表示有此经历,曾经去过那里。）
I have been to Beijing several times. 我去过北京几次。 have/has gone to...已经去了，它强调主语此时不在说话地点。 e.g. She has gone to Shang-hai. 她已经去了上海。
3 so...that... 如此……以至于……，引导结果状语从句。e.g. He ran so quickly that we couldn’t keep up with him.，他跑的太快以至于我们都赶不上。so...that...引导的从句有时可以和too...to...句型互换。e.g. He is so young that he can’t go to school. = He is too young to go to school. 他太小了，还不能
上学。
4 improve 意为“提高，(使)好转，，改善”。a.可作及物动词。improve oneself自我提高。e.g. He has improved his health. 他的健康状况得到了改善。b.可作不及物动词。e.g. His health is improving. 他的健康状况正在好转。另：improve on/upon sth.对……做出改进。e.g. He has improved on the invention.他进一步完善了他的发明。improvement n. 改进（处），增进，事物。
5 by the way 顺便问一问。e.g. By the way, do you know him? 顺便问一问，你认识他吗？
6 There goes the bell.＝That’s the bell.＝The bell is ringing.铃响了。此句是倒装语序。倒装分为局部倒装和完全倒装，主语是代词时一般用局部倒装，主语是名词时则用完全倒装。 e.g. There comes the bus. 公共汽车来了。Look! Here he comes. 看！他来了。Here you are. 给你。 8 Where have you been? 你去过哪里啦？ I have been to +地点。 我去过了…… Where has she/he been? 她/他去过哪里啦？ She/He has been to +地点。 我去过了。。。。。。 U1T1SB
1 I haven’t seen you for a long time. 我很长时间没看到你啦。
现在完成时的否定结构是haven’t/hasn’t+过去分词。 2You took part in some volunteer activities during summer holidays, didn’t you?
你在暑假参加了一些志愿者活动，是吗？ 此句为反义疑问句。例如： e.g. It’s a nice day, isn’t it? 美好的一天，不是吗？
Ann didn’t use to live there, did she? Ann过去不常住那里，不是吗？
3 I’ve learnt a lot from it. 我从中 学到了很多东西。 learn ... from... 从……中学习（到）……。 e.g. We must learn from each other. 我们必须互相学习。
He learnt a lot from his friends last summer. 去年夏季，他从他朋友那学到了很多。 4 Have you been to any other place? 你有没有去过其它地方吗？ 现在完成时的疑问句？ Have you cleaned the room? 回答： Yes, I have, /No , I haven’t .