七年級數(shù)學上冊：第1章《數(shù)學與我們同行》教學課件12活動思考

1、1234100？誰是聰明的高斯？把一張長方形紙片通過折疊、裁剪、展開，你能得到一個正方形嗎？用火柴棒搭三角形搭2個三角形需要火柴棒_根搭3個三角形需要火柴棒_根搭1個三角形需要火柴棒_根357搭10個三角形需要火柴棒_根搭100個三角形需要火柴棒_根21201搭n個三角形需要火柴棒_根(2n1)日一二三四 五六12345678910111213141516171819202122232425262728293031觀察月歷日一二三四 五六12345678910111213141516171819202122232425262728293031觀察月歷日一二三四 五六12345678910111

2、213141516171819202122232425262728293031觀察月歷日一二三四 五六12345678910111213141516171819202122232425262728293031觀察月歷活動名稱籃球足球乒乓球羽毛球健美操跳繩人數(shù)現(xiàn)場調(diào)查什么是初中學生最喜歡的體育活動？小結(jié)：通過本節(jié)課的學習，你有哪些收獲？Revision Module 71.1.1集合的概念課內(nèi)合作探究 2鞏 固 提 升3課后強化作業(yè) 4課前自主預(yù)習1課前自主預(yù)習.重點單詞1破壞，損壞(v.)_2臨時的(adj.)_3尷尬的(adj.)_(使)尷尬(v.)_4區(qū)分，區(qū)別(v.)_5安排，布置(n.

3、)_安排(v.)_ damagetemporaryembarrassedembarrass distinguish arrangementarrange.重點短語1mistake._.誤將認為2throw_扔掉，拋棄3_show在展出for awayon課內(nèi)合作探究1embarrass vt.使尷尬；使窘迫I hope my words didnt embarrass you.我希望我的話沒有使你難堪。The release of these secret documents has embarrassed the administration.這些秘密文件的公開使政府陷入困境。知識拓展(1)

4、embarrassing adj.令人尷尬的，使人難堪的embarrassed adj.感到難堪，感到尷尬的be embarrassed to do sth.對做某事感到困窘或?qū)擂蝏e embarrassed about對感到不好意思I dont like making speeches in public；it is so embarrassing.我不喜歡在公眾面前講話，太難為情了。Arthur seemed embarrassed by the question.亞瑟似乎被這個問題弄得有些窘迫。(2)embarrassment n害羞，困窘，難堪much to ones embarras

5、sment令人很不好意思的是Hes an embarrassment to his family.他是家中叫人為難的人。即學即用語法填空(1)I felt_(embarrass)about how dirty my house was.(2)She asked a lot of_(embarrass)questions.答案：(1)embarrassed(2)embarrassing2distinguish vt.區(qū)別，辨別distinguish between.and.distinguish.from.區(qū)別與distinguish onself(as.)使某人出眾；使某人著名distingu

6、ished adj. 杰出的；著名的I couldnt distinguish the twin brothers.我無法分辨那對雙胞胎兄弟。Please tell me how to distinguish a poisonous snake from a harmless one.請告訴我如何區(qū)分毒蛇和無毒蛇。Speech distinguishes man from the other animals.語言把人和其他動物區(qū)別開來。He distinguished himself by winning four prizes.他因贏得4個獎而出名。He is distinguished f

7、or his knowledge of science.他以懂得廣泛的科學知識而出名。注意：distinguish A from B相當于tell A from B，表示：辨別/分辨A與B。即學即用完成句子色盲者很難辨別紅色與綠色。Color blind people often find it difficult to_ red_green.答案：distinguish between；andthrow away 扔掉；拋棄；浪費；錯過You should throw away all useless things.你應(yīng)當把那些沒用的東西統(tǒng)統(tǒng)扔掉。My advice was thrown a

8、way on him.我對他的勸告都白費了。This could be the best chance youll ever have；dont throw it away.這很可能是你能得到的最好的機會，別白白地錯過了。知識拓展throw light on/upon 闡明；使顯得清楚This find is very valuable，for it throws much light on the history of the textile art.這一發(fā)現(xiàn)很有價值，因為它為紡織工業(yè)的發(fā)展史提供了資料。即學即用翻譯句子這些消息為弄清總統(tǒng)的神秘死亡提供了線索。_答案：The news thr

9、ew light on the presidents mysterious death.it was too badly damaged to be put on show again，.已受到嚴重的破壞而不能被再次展出了，too.to.太而不能在該短語中，too后接形容詞或副詞，to后接不定式，可能是肯定意義，也可能是否定意義。具體用法如下：(1)否定意義。后面的to接不定式修飾前面的too時，才具有否定意義，翻譯時要加否定詞。The boy was too excited to keep still.這個男孩太興奮了，無法保持平靜。The boy is too young to go to

10、 school.那個男孩還沒到上學的年齡。(2)肯定意義。在too的前面有all，but，not，only等詞時，具有肯定意義。only/but too.to.太巴不得，非常(十分)He is only too pleased to help you.他非常樂于助人。not too.to.不太還來得及，并非太而不能.He is not too young to dress himself.他不是小的連衣服也不會穿。.It is not too much to say that life without water is impossible.沒有水就沒有生命，這樣說并不過分。too.not t

11、o.太不能不.You are too clever not to understand the importance of this question.你太聰明了，一定能懂得這個問題的重要性。.He was too angry not to say what he thought.他太氣憤了，忍不住要說出心里話。即學即用完成句子駕駛汽車時，你怎么小心也不過分。You cannot_careful when you drive a car.答案：be too鞏 固 提 升單項填空1English has a large vocabulary，hasnt it?Yes._ more words a

12、nd expressions and you will find it easier to read and communicate.AKnowBKnowingCTo know DKnown答案：A考查“祈使句and陳述句”句式結(jié)構(gòu)。2We wanted to get home before dark，but it didnt quite _ as planned.Amake out Bturn outCgo on Dcome up答案：Bturn out“結(jié)果是”；不像計劃的那樣。3We had three sets of garden tools and we seemed to have

13、 no use for _.Anone BeitherCany Deach答案：C根據(jù)have no use可確定應(yīng)用any。因為any用于否定句中。either用于否定句表示“也不”。4Because the shop _，all the Tshirts are sold at half price.Ahas closed down Bclosed downCis closing down Dhad closed down答案：C現(xiàn)在進行時有時可表示將要發(fā)生的事，特別是在計劃中即將發(fā)生的事。根據(jù)下文all the Tshirts are sold at half price可判斷出商店即將關(guān)

14、門。5Anyway，that evening，_ Ill tell you more about later，I ended up staying at Rachels place.Awhen BwhereCwhat Dwhich答案：D這是一個非限制性定語從句，which在定語從句中作about的賓語。6Brad was Janes brother!_ he reminded me so much of Jane!ANo doubt BAbove allCNo wonder DOf course答案：Cno wonder“難怪”，因為Brad是Jane的兄弟，他經(jīng)常提到Jane就沒有什么奇怪

15、的了。7Linda worked for the Minnesota Manufacturing and Mining Company，_ as 3M.Aknowing BknownCbeing known Dto be known答案：B過去分詞known作Minnesota Manufacturing and Mining Company的定語。8The 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(須及物)”，及物的不定式的邏輯賓語應(yīng)是句子主語。9It was required that each student _ enough food for the picnic.Abring BbroughtCwould bring Dhad brought答案：A受require的影響，本句使用“should動詞原形”構(gòu)成虛擬語氣(should可以省略)。10What do you want to do ne