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1、许多同学认为攻坚阶段就必须要有大量的偏题、怪题、难题才能显示出自己的水平，才能拿下高考中的压轴题。考试说明明确提出，不考偏难、怪题，建议大家别做无用功。只有牢固掌握常规思维，常规方法，才能以不变应万变，即使是一个尖子生，花费很多的时间钻研偏、难、怪题也是一个不好的现象。八年级英语下册 Unit 9 Have you ever been to a museum Period 1教学案（新版）人教新目标版Period 1 SectionA1a-2d【教学目标】知识与技能（1）熟练掌握下列词汇： amusement, unbelievable, progress, rapid, unusual, t
2、oilet, encourage, socia（2）掌握下列句型：Have you ever been to a museum?Yes, I have. I went to the national science museum last year. Lets go to one tomorrow.过程与方法听力练习，小组活动，角色扮演情感、态度与价值观培养学生热爱生活，热爱自然的心理品格。【教学重难点】重点：描述某人曾经去过哪些有趣的地方和谈论过去的经历。难点：掌握用现在完成时谈论过去的经历。【导学过程】一新课预习1.space museum 2.learn about 3.put up 4
3、.on the weekend 5.camp in the mountains 二. 情景导入T: Summer vacation is coming. Where have you been on your last summer vacation? Where do you want to go for this summer vacation?三合作探究1. 个人或小组读1a的单词和对话。2听录音完成1b。3. 对话练习1c.看2a中的地图，我们一起来编对话。A: Have you ever been to ? B: Yes, I have. / No, I havent. A: Whe
4、n did you go there? B: I went there A: How did you go there? B: I went there by A: Where are you going next week? B: Im going to A: How are you going there? B: A: Who are you going with ? B: 4. 讨论(1)Have you ever been to an amusement park?和I went to Fun Times Amusement Park last year.这两句话时态上有什么不同？为什
5、么？_(2)根据下面三个句子，讨论neither的用法：Me neither, Lets go to water city .Neither answer is right.Neither of them knows me._ 5、听录音完成2a,2b。6.对话练习2c 7.角色扮演2d.四点拨总结现在完成时（一）I用法：现在完成时表示过去发生的动作对现在造成的影响或结果。常与下列时间状语连用：just , already, yet, ever, never, before, several times。 现在完成时不能和表示过去的时间（如：yesterday, last, year, in
6、1976, two days ago, just now, when she came in 等）连用。（1）现在完成时表示过去发生的动作对现在的影响。 I have studied English. 表示I know a little English. He has already come back. 表示He is here now. 常与already, yet, just, recently, ever, never, before等表示不确定时间的时间状语连用。（2）现在完成时表示从过去一直持续到现在的动作或状态。She has been ill for 3 days. He ha
7、s worked in the bank since 1990. 此时，句中谓语动词通常是延续性动词，且常与表示一段时间的时间状语连用。如：these days, all this year, recently, for 时间段以及since时间点等等。II. 构成：have / has 动词过去分词（1）has用于主语是第三人称单数，have用于其它人称。（2）动词的过去分词构成分为规则动词和不规则动词。规则动词在词尾加ed，其规则与过去式一样。不规则动词要记住。例如：taketaken, gogone等。III.区分 have/has been to 与have/has gone to h
8、ave /has been to 和 have/has gone to 都是指已经去了某个地方，但是 have /has been to 强调的是曾经去了某个地方并回来了； have/has gone to强调的是去了某个地方还没有回来。-Have you ever been to Shanghai? -Yes, several times. - Where is Mr. Wang?？- He has gone to Shanghai.五训练评价 单项选择1. Have you ever been to an aquarium? No, _. A. I have B. I am not C.
9、I havent D. I hasnt 2. Ive never been to a water park. _ A. Me, too B. Me, neither. C. Me also. D. Me both.3. Has the train _ yet? A. got to B. reached C. arrived D. arrived at 4.The teacher asked _. A. whats your name B. what was your name C. what your name is D. what your name was 5.Do you mind if
10、 I stay here a little longer? _. A. No, you cant B. Yes , you may C. Certainly not D. Yes, not at all 6.How long has his brother _ the book? A. kept B. bought C. lent D. borrowed 7.Ive never seen such a fine picture _. A. ago B. before C. yet D. later 8.Has the foreigner been to many interesting pla
11、ces in Beijing?Yes, but he has not _been to many other parts of China. A. already B. still C. yet D. never完成下列句子1.乘电梯去12楼2.你知道他是否有一些重要的信息要告诉我吗?3.昨天,老师说地球是围绕着太阳转的六学习反思开心 ，我学会了： 1. 2. 3. 加油 ，这些我还不懂： 1. 2. 3. 一、选择题1下列属于相对脆弱的自然生态系统的是()A绿洲荒漠交界带B水土流失严重区C地质灾害易发区 D高寒带生态系统解析：选D相对脆弱的自然生态系统常见的有海岛生态系统、干旱区生态系统和高
12、寒带生态系统等。2下列属于非洲的荒漠化问题特别严重的自然原因是()A气候干旱 B乱垦滥伐C过度放牧 D破坏植被解析：选A非洲北部为热带沙漠气候，降水稀少，气候干旱，荒漠化问题特别严重；乱垦滥伐、过度放牧和破坏植被为人为原因。新中国成立以来，我国沙漠化土地面积不断扩大，河北怀来沙漠离北京天安门已不足70 km。我国形成的沙漠化土地有85%是滥垦、滥牧和滥伐森林的结果；10%是水资源利用不当和工矿建设破坏林草造成的；5%是沙丘入侵农田和草场所致。据此完成34题。3这些沙漠化土地主要分布在()A华南、华东和华北地区B西北、西南和东北地区C西北、东北和华北地区D东北、华北和西南地区4这些沙漠化土地的形成()A主要是人类对土地进行不合理的开发和利用，使植被受到破坏所致B是人类发展工农业所致C主要是由于降水减少，蒸发加剧D是由于气候干旱，沙丘不断向农牧业土地推进解析：3.C4.A第3题，沙漠化土地主要分布在干旱、半干旱和具有旱害的半湿润地区，在我国主要分布在东北、华北和西北地区。第4题，由材料可知，我国形成的沙漠化土地有85%是滥垦、滥牧和滥伐森林的结果。位于长江中上游的某茶场，茶园面积600亩，每年四月、七月、十一月要锄草三次，久而久之，茶园“消瘦”了。同时，锄草需要大量劳动力，困惑之际，茶场主人想到“羊喜吃嫩草，却不吃嫩茶”，于是把羊引进茶园，既节约人力、物力，又保持了水土，肥沃了茶
