七年级数学上册：第1章《数学与我们同行》教学课件1.2-活动-思考

1、七年级数学上册：第1章数学与我们同行教学课件1七年级数学上册：第1章数学与我们同行教学课件1把一张长方形纸片通过折叠、裁剪、展开，你能得到一个正方形吗？把一张长方形纸片通过折叠、裁剪、展开，你能得到一个正方形用火柴棒搭三角形搭2个三角形需要火柴棒_根搭3个三角形需要火柴棒_根搭1个三角形需要火柴棒_根357用火柴棒搭三角形搭2个三角形搭3个三角形搭1个三角形357搭10个三角形需要火柴棒_根搭100个三角形需要火柴棒_根21201搭n个三角形需要火柴棒_根(2n1)搭10个三角形需要火柴棒_根搭100个三角形需要火柴日一二三四 五六1234567891011121314151617181920

2、2122232425262728293031观察月历日一二三四 五六1234567891011121314151日一二三四 五六12345678910111213141516171819202122232425262728293031观察月历日一二三四 五六1234567891011121314151日一二三四 五六12345678910111213141516171819202122232425262728293031观察月历日一二三四 五六1234567891011121314151日一二三四 五六1234567891011121314151617181920212223242526272

3、8293031观察月历日一二三四 五六1234567891011121314151活动名称篮球足球乒乓球羽毛球健美操跳绳人数现场调查什么是初中学生最喜欢的体育活动？活动名称篮球足球乒乓球羽毛球健美操跳绳人数现场调小结：通过本节课的学习，你有哪些收获？小结：通过本节课的学习，你有哪些收获？七年级数学上册：第1章数学与我们同行教学课件1Revision Module 71.1.1集合的概念Revision Module 71.1.1集合的概念课内合作探究 2巩 固 提 升3课后强化作业 4课前自主预习1课内合作探究 2巩 固 提 升3课后强化作业 4课前自主课前自主预习课前自主预习.重点单词1破坏

4、，损坏(v.)_2临时的(adj.)_3尴尬的(adj.)_(使)尴尬(v.)_4区分，区别(v.)_5安排，布置(n.)_安排(v.)_ damagetemporaryembarrassedembarrass distinguish arrangementarrange.重点单词 damagearrange.重点短语1mistake._.误将认为2throw_扔掉，抛弃3_show在展出for awayonfor awayon课内合作探究课内合作探究1embarrass vt.使尴尬；使窘迫I hope my words didnt embarrass you.我希望我的话没有使你难堪。Th

5、e release of these secret documents has embarrassed the administration.这些秘密文件的公开使政府陷入困境。1embarrass vt.使尴尬；使窘迫知识拓展(1)embarrassing adj.令人尴尬的，使人难堪的embarrassed adj.感到难堪，感到尴尬的be embarrassed to do sth.对做某事感到困窘或尴尬be embarrassed about对感到不好意思I dont like making speeches in public；it is so embarrassing.我不喜欢在公众

6、面前讲话，太难为情了。Arthur seemed embarrassed by the question.亚瑟似乎被这个问题弄得有些窘迫。知识拓展(2)embarrassment n害羞，困窘，难堪much to ones embarrassment令人很不好意思的是Hes an embarrassment to his family.他是家中叫人为难的人。七年级数学上册：第1章数学与我们同行教学课件1即学即用语法填空(1)I felt_(embarrass)about how dirty my house was.(2)She asked a lot of_(embarrass)questi

7、ons.答案：(1)embarrassed(2)embarrassing七年级数学上册：第1章数学与我们同行教学课件12distinguish vt.区别，辨别distinguish between.and.distinguish.from.区别与distinguish onself(as.)使某人出众；使某人著名distinguished adj. 杰出的；著名的I couldnt distinguish the twin brothers.我无法分辨那对双胞胎兄弟。Please tell me how to distinguish a poisonous snake from a harm

8、less one.请告诉我如何区分毒蛇和无毒蛇。2distinguish vt.区别，辨别Speech distinguishes man from the other animals.语言把人和其他动物区别开来。He distinguished himself by winning four prizes.他因赢得4个奖而出名。He is distinguished for his knowledge of science.他以懂得广泛的科学知识而出名。注意：distinguish A from B相当于tell A from B，表示：辨别/分辨A与B。七年级数学上册：第1章数学与我们同行

9、教学课件1即学即用完成句子色盲者很难辨别红色与绿色。Color blind people often find it difficult to_ red_green.答案：distinguish between；and七年级数学上册：第1章数学与我们同行教学课件1throw away 扔掉；抛弃；浪费；错过You should throw away all useless things.你应当把那些没用的东西统统扔掉。My advice was thrown away on him.我对他的劝告都白费了。This could be the best chance youll ever have

10、；dont throw it away.这很可能是你能得到的最好的机会，别白白地错过了。throw away 扔掉；抛弃；浪费；错过知识拓展throw light on/upon 阐明；使显得清楚This find is very valuable，for it throws much light on the history of the textile art.这一发现很有价值，因为它为纺织工业的发展史提供了资料。七年级数学上册：第1章数学与我们同行教学课件1即学即用翻译句子这些消息为弄清总统的神秘死亡提供了线索。_答案：The news threw light on the presid

11、ents mysterious death.七年级数学上册：第1章数学与我们同行教学课件1.it was too badly damaged to be put on show again，.已受到严重的破坏而不能被再次展出了，too.to.太而不能在该短语中，too后接形容词或副词，to后接不定式，可能是肯定意义，也可能是否定意义。具体用法如下：.it was too badly damaged to(1)否定意义。后面的to接不定式修饰前面的too时，才具有否定意义，翻译时要加否定词。The boy was too excited to keep still.这个男孩太兴奋了，无法保持平静

12、。The boy is too young to go to school.那个男孩还没到上学的年龄。七年级数学上册：第1章数学与我们同行教学课件1(2)肯定意义。在too的前面有all，but，not，only等词时，具有肯定意义。only/but too.to.太巴不得，非常(十分)He is only too pleased to help you.他非常乐于助人。not too.to.不太还来得及，并非太而不能.He is not too young to dress himself.他不是小的连衣服也不会穿。.It is not too much to say that life w

13、ithout water is impossible.没有水就没有生命，这样说并不过分。(2)肯定意义。在too的前面有all，but，not，ontoo.not to.太不能不.You are too clever not to understand the importance of this question.你太聪明了，一定能懂得这个问题的重要性。.He was too angry not to say what he thought.他太气愤了，忍不住要说出心里话。七年级数学上册：第1章数学与我们同行教学课件1即学即用完成句子驾驶汽车时，你怎么小心也不过分。You cannot_ca

14、reful when you drive a car.答案：be too七年级数学上册：第1章数学与我们同行教学课件1巩 固 提 升巩 固 提 升单项填空1English has a large vocabulary，hasnt it?Yes._ more words and expressions and you will find it easier to read and communicate.AKnowBKnowingCTo know DKnown答案：A考查“祈使句and陈述句”句式结构。七年级数学上册：第1章数学与我们同行教学课件12We wanted to get home b

15、efore dark，but it didnt quite _ as planned.Amake out Bturn outCgo on Dcome up答案：Bturn out“结果是”；不像计划的那样。七年级数学上册：第1章数学与我们同行教学课件13We had three sets of garden tools and we seemed to have no use for _.Anone BeitherCany Deach答案：C根据have no use可确定应用any。因为any用于否定句中。either用于否定句表示“也不”。七年级数学上册：第1章数学与我们同行教学课件14B

16、ecause the shop _，all the Tshirts are sold at half price.Ahas closed down Bclosed downCis closing down Dhad closed down答案：C现在进行时有时可表示将要发生的事，特别是在计划中即将发生的事。根据下文all the Tshirts are sold at half price可判断出商店即将关门。七年级数学上册：第1章数学与我们同行教学课件15Anyway，that evening，_ Ill tell you more about later，I ended up stayin

17、g at Rachels place.Awhen BwhereCwhat Dwhich答案：D这是一个非限制性定语从句，which在定语从句中作about的宾语。七年级数学上册：第1章数学与我们同行教学课件16Brad was Janes brother!_ he reminded me so much of Jane!ANo doubt BAbove allCNo wonder DOf course答案：Cno wonder“难怪”，因为Brad是Jane的兄弟，他经常提到Jane就没有什么奇怪的了。七年级数学上册：第1章数学与我们同行教学课件17Linda worked for the M

18、innesota Manufacturing and Mining Company，_ as 3M.Aknowing BknownCbeing known Dto be known答案：B过去分词known作Minnesota Manufacturing and Mining Company的定语。七年级数学上册：第1章数学与我们同行教学课件18The Chinese language is generally thought by the foreign learners to be the hardest _.Ato learn Bto be learntClearning it Dto learn it答案：A句型“sth.beadj.to do(须及物)”，及物的不定式的逻辑宾语应是句子主语。七年级数学上册：第1章数学与我们同行教学课件19It was required that each student _ enough food for the picnic.Abring BbroughtCwould bring Dhad brought答案：A受require的影响，本句使用“should动词原形”构成虚拟语气(should可以省略)。七年级数学上册：第1章数学与我们同行教学课件110What do