【詞匯精講】highlight n.最好或最精彩的部分 vt.突出;強調(diào);使醒目One of the highlights of the trip was seeing the Taj Mahal.這次旅行的亮點之一是參觀泰姬陵。Your resume should highlight your skills and achievements.你的簡歷應(yīng)該突出你的技能和成就。The report highlights the major problems facing society today.報告強調(diào)了當(dāng)今社會所面臨的主要問題。I’ve highlighted the important passages in yellow.我用黃色標出了重要段落。7.Edmonton is freezing cold in winter,with daily temperatures averaging -10 ℃.埃德蒙頓冬季寒冷,日平均氣溫為-10°C。【詞匯精講】freezing adj.極冷的;冰凍的Leave a basin of water outside in freezing weather.在冰凍的天氣里,放一盆水在室外。It’s freezing cold outside so wear a warm coat.外面超冷的,所以穿一個暖和一點的外套吧。8.It was not until 9:30 a.m.that they finally reached the capital of Ontario,Toronto.直到上午9時30分,他們才終于到達多倫多的首府安大略省?!揪涫狡饰觥勘揪涫且粋€強調(diào)句,強調(diào)的是句子的時間狀語until 9:30。含有not...until...的句子的強調(diào)句為It is not until...that...,that后面的句子要用肯定形式。It was not until then that I suddenly realized nobody was happier than I was.直到那時我才突然意識到?jīng)]有人比我更幸福了。
1. We'll need ten months at least to have the restaurant decorated.2.Some traditional Chinese dishes from before the Ming Dynasty are still popular today.3.My grandpa's breakfast mainly includes whole grain biscuits and a glass of milk.4.People in this area would eat nearly a kilo of cheese per week.5. We enjoyed a special dinner in a fancy restaurant where the waiters all wore attractive suits.6. He prefers this brand of coffee which, as he said, has an unusually good flavor.Key:1. at a minimum 2. prior to3. consist of4. consume5. elegant6. exceptionalStep 5:Familiarize yourself with some food idioms by matching the meaning on the right with the colored words on the left.1.Public concern for the health of farm animals has mushroomed in the UK2.Anderson may be young but he's certainly rolling to doing dough!3.George is a popular lecturer. He often peppers his speech with jokes.4.As the person to bring home the bacon, he needs to find a stable job.5 He is often regarded as a ham actor for his over emphasized facial expressions. The media reported that these companies had treated pollution as a hot potato. 6.The media reported that these companies had treated pollution as a hot potato.7.Don't worry about the test tomorrow. It's going to be a piece of cake!8. It's best to fold the swimming ring when it is as flat as a pancake.A. completely flatB. something that is very easy to do C.an issue that is hard to deal withD.to include large numbers of somethingE.to earn on e's living to support a familyF. wealthyG.to rapidly increase in numberH. an actor who performs badly, especially by over emphasizing emotions
? B: Absolutely! Getting involved with Chinese cultural activities there definitely helped a lot. I got to practice my Chinese on a daily basis, and I could learn how native Chinese speakers spoke.? A: What do you feel is your biggest achievement?? B: Learning Chinese characters! I have learnt about 1,500 so far. When I first started, I didn't think it was even going to be possible to learn so many, but now I find that I can read signs, menus, and even some easy newspaper articles.? A: What are you most keen on?? B: I've really become keen on learning more about the Chinese culture, in particular Chinese calligraphy. As I have learnt Chinese characters, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way. ? A: Finally, what do you want to say to anyone interested in learning Chinese?? I have really become keen on learning more about the Chinese culture, in particular Chinese Calligraphy. As I have learnt Chinese character, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way.? A: Finally, what do you want to say to anyone interested in learning Chinese?? B: I'd say, give it a shot! While some aspects may be difficult, it is quite rewarding and you will be happy that you tried.? A: Thanks for your time. ? B:You're welcome.
1. How is Hunan cuisine somewhat different from Sichuan cuisine?The heat in Sichuan cuisine comes from chilies and Sichuan peppercorns. Human cuisine is often hotter and the heat comes from just chilies.2.What are the reasons why Hunan people like spicy food?Because they are a bold people. But many Chinese people think that hot food helps them overcome the effects of rainy or wet weather.3.Why do so many people love steamed fish head covered with chilies?People love it because the meat is quite tender and there are very few small bones.4.Why does Tingting recommend bridge tofu instead of dry pot duck with golden buns?Because bridge tofu has a lighter taste.5 .Why is red braised pork the most famous dish?Because Chairman Mao was from Hunan, and this was his favorite food.Step 5: Instruct students to make a short presentation to the class about your choice. Use the example and useful phrases below to help them.? In groups of three, discuss what types of restaurant you would like to take a foreign visitor to, and why. Then take turns role-playing taking your foreign guest to the restaurant you have chosen. One of you should act as the foreign guest, one as the Chinese host, and one as the waiter or waitress. You may start like this:? EXAMPLE? A: I really love spicy food, so what dish would you recommend?? B: I suggest Mapo tofu.? A: Really ? what's that?
This section guides students to pay attention to the typical context of vocabulary use, helps students accumulate vocabulary around the key vocabulary of this unit, and uses the learned words and word chunks in different contexts to deeply understand their meaning and usage, so as to achieve the purpose of review and consolidation.The teaching design activities aim to guide students to pay attention to the typical context in which the target vocabulary is used, as well as the common vocabulary used in collocation, so that students can complete the sentence with correct words. In terms of vocabulary learning strategies, this unit focuses on cultivating students' ability to pay attention to collocation of words and to use word blocks to express meaning.For vocabulary learning, it is not enough just to know the meaning of a single word, but the most important thing is to master the common collocations of words, namely word blocks.Teachers should timely guide students to summarize common vocabulary collocation, such as verb and noun collocation, verb and preposition collocation, preposition and noun collocation, and so on.1. Guide students to understand and consolidate the meaning and usage of the vocabulary in the context, 2. Guide the students to use the unit topic vocabulary in a richer context3. Let the students sort out and accumulate the accumulated vocabulary, establishes the semantic connection between the vocabulary,4. Enable students to understand and master the vocabulary more effectivelyGuiding the Ss to use unit topic words and the sentence patterns in a richer context.
假定你是英國的Jack,打算來中國旅行,請你給你的中國筆友李華寫一封信,要點如下:1.你的旅行計劃:北京→泰山→杭州;2.征求建議并詢問他是否愿意充當(dāng)你的導(dǎo)游。注意:1.詞數(shù)80左右(開頭和結(jié)尾已給出,不計入總詞數(shù));2.可以適當(dāng)增加細節(jié),以使行文連貫。參考詞匯:故宮 the Forbidden City;泰山 Mount TaiDear Li Hua,I'm glad to tell you that 'm going to visit China.First,I am planning to visit Beijing,the capitalof China,where I am looking forward to enjoying the Great Wall,the Forbidden City and somebeautiful parks.Then I intend to go to visit Mount Tai in Shandong Province.I've heard that it is one ofthe most famous mountains in China and I can't wait to enjoy the amazing sunrise there.After that,I amalso going to Hangzhou.It is said that it is a beautiful modern city with breathtaking natural sights,among which the West Lake is a well- known tourist attraction.What do you think of my travel plan? Will you act as my guide? Hope to hear from you soon.
The theme of this activity is to learn the first aid knowledge of burns. Burns is common in life, but there are some misunderstandings in manual treatment. This activity provides students with correct first aid methods, so as not to take them for granted in an emergency. This section guides students to analyze the causes of scald and help students avoid such things. From the perspective of text structure and collaborative features, the text is expository. Expository, with explanation as the main way of expression, transmits knowledge and information to readers by analyzing concepts and elaborating examples. This text arranges the information in logical order, clearly presents three parts of the content through the subtitle, accurately describes the causes, types, characteristics and first aid measures of burns, and some paragraphs use topic sentences to summarize the main idea, and the level is very clear.1. Guide students to understand the causes, types, characteristics and first aid methods of burns, through reading2. Enhance students’ ability to deal withburnss and their awareness of burns prevention3. Enable students to improve the ability to judge the types of texts accurately and to master the characteristics and writing techniques of expository texts.Guide students to understand the causes, types, characteristics and first aid methods of burns, through readingStep1: Lead in by discussing the related topic:1. What first-aid techniques do you know of ?CPR; mouth to mouth artificial respiration; the Heimlich Manoeuvre
The theme of this section is to express people's views on studying abroad. With the continuous development of Chinese economic construction, especially the general improvement of people's living standards, the number of Chinese students studying abroad at their own expense is on the rise. Many students and parents turn their attention to the world and regard studying abroad as an effective way to improve their quality, broaden their horizons and master the world's advanced scientific knowledge, which is very important for the fever of going abroad. Studying abroad is also an important decision made by a family for their children. Therefore, it is of great social significance to discuss this issue. The theme of this section is the column discussion in the newspaper: the advantages and disadvantages of studying abroad. The discourse is about two parents' contribution letters on this issue. They respectively express their own positions. One thinks that the disadvantages outweigh the advantages, and the other thinks that the advantages outweigh the disadvantages. The two parents' arguments are well founded and logical. It is worth noting that the two authors do not express their views on studying abroad from an individual point of view, but from a national or even global point of view. These two articles have the characteristics of both letters and argumentative essays1.Guide the students to read these two articles, and understand the author's point of view and argument ideas2.Help the students to summarize the structure and writing methods of argumentative writing, and guides students to correctly understand the advantages and disadvantages of studying abroad3.Cultivate students' ability to analyze problems objectively, comprehensively and deeply
答:所有陰影部分的面積和是5050cm2.方法總結(jié):首先應(yīng)找出圖形中哪些部分發(fā)生了變化,是按照什么規(guī)律變化的,通過分析找到各部分的變化規(guī)律后直接利用規(guī)律求解.探尋規(guī)律要認真觀察、仔細思考,善用聯(lián)想來解決這類問題.三、板書設(shè)計1.平方差公式:a2-b2=(a+b)(a-b);2.平方差公式的特點:能夠運用平方差公式分解因式的多項式必須是二項式,兩項都能寫成平方的形式,且符號相反.運用平方差公式因式分解,首先應(yīng)注意每個公式的特征.分析多項式的次數(shù)和項數(shù),然后再確定公式.如果多項式是二項式,通??紤]應(yīng)用平方差公式;如果多項式中有公因式可提,應(yīng)先提取公因式,而且還要“提”得徹底,最后應(yīng)注意兩點:一是每個因式要化簡,二是分解因式時,每個因式都要分解徹底.
評價:這段話表明傅雷朋友的角色。他把孩子當(dāng)成朋友,為人生得一知己而感到興奮、自豪。在讀這段話時聲音應(yīng)洪亮,感情應(yīng)充沛。小結(jié):我們組還發(fā)現(xiàn)傅雷對傅聰?shù)姆Q呼有很多,如聰、聰兒、孩子、親愛的聰、親愛的孩子。有時兩個同時用,比如“聰,親愛的孩子!”一直以來,我們都覺得父愛不善表達,可是傅雷的這些親昵直白的稱呼表達了他對傅聰?shù)膼郏沁@么的溫柔,如慈母一般。所以,讀這些稱呼時我們要讀得輕柔深情些?!驹O(shè)計意圖】這一環(huán)節(jié)不僅能展示學(xué)生的閱讀成果,還能使學(xué)生感受到閱讀的成就感,并在相互交流中產(chǎn)生更深刻的理解和感悟,在朗讀和評價中體會父愛。二、感悟成長1.解讀“虎爸”師:在同學(xué)們的閱讀分享中,傅雷這樣一個深愛兒子的父親形象深入人心。其實,傅雷早期對傅聰?shù)慕逃呛車揽恋模且粋€“虎爸”的形象。我們一起來看一則小故事。
二、填空題1.一元二次方程ax2+bx+c=0(a≠0)的求根公式是________,條件是________.2.當(dāng)x=______時,代數(shù)式x2-8x+12的值是-4.3.若關(guān)于x的一元二次方程(m-1)x2+x+m2+2m-3=0有一根為0,則m的值是_____.三、綜合提高題1.用公式法解關(guān)于x的方程:x2-2ax-b2+a2=0.2.設(shè)x1,x2是一元二次方程ax2+bx+c=0(a≠0)的兩根,(1)試推導(dǎo)x1+x2=- ,x1·x2= ;(2)求代數(shù)式a(x13+x23)+b(x12+x22)+c(x1+x2)的值.3.某電廠規(guī)定:該廠家屬區(qū)的每戶居民一個月用電量不超過A千瓦時,那么這戶居民這個月只交10元電費,如果超過A千瓦時,那么這個月除了交10元用電費外超過部分還要按每千瓦時 元收費.(1)若某戶2月份用電90千瓦時,超過規(guī)定A千瓦時,則超過部分電費為多少元?(用A表示)(2)下表是這戶居民3月、4月的用電情況和交費情況
二、填空題1.一元二次方程ax2+bx+c=0(a≠0)的求根公式是________,條件是________.2.當(dāng)x=______時,代數(shù)式x2-8x+12的值是-4.3.若關(guān)于x的一元二次方程(m-1)x2+x+m2+2m-3=0有一根為0,則m的值是_____.三、綜合提高題1.用公式法解關(guān)于x的方程:x2-2ax-b2+a2=0.2.設(shè)x1,x2是一元二次方程ax2+bx+c=0(a≠0)的兩根,(1)試推導(dǎo)x1+x2=- ,x1·x2= ;(2)求代數(shù)式a(x13+x23)+b(x12+x22)+c(x1+x2)的值.3.某電廠規(guī)定:該廠家屬區(qū)的每戶居民一個月用電量不超過A千瓦時,那么這戶居民這個月只交10元電費,如果超過A千瓦時,那么這個月除了交10元用電費外超過部分還要按每千瓦時 元收費.(1)若某戶2月份用電90千瓦時,超過規(guī)定A千瓦時,則超過部分電費為多少元?(用A表示)(2)下表是這戶居民3月、4月的用電情況和交費情況
一、定義: ,這一公式表示的定理叫做二項式定理,其中公式右邊的多項式叫做的二項展開式;上述二項展開式中各項的系數(shù) 叫做二項式系數(shù),第項叫做二項展開式的通項,用表示;叫做二項展開式的通項公式.二、二項展開式的特點與功能1. 二項展開式的特點項數(shù):二項展開式共(二項式的指數(shù)+1)項;指數(shù):二項展開式各項的第一字母依次降冪(其冪指數(shù)等于相應(yīng)二項式系數(shù)的下標與上標的差),第二字母依次升冪(其冪指數(shù)等于二項式系數(shù)的上標),并且每一項中兩個字母的系數(shù)之和均等于二項式的指數(shù);系數(shù):各項的二項式系數(shù)下標等于二項式指數(shù);上標等于該項的項數(shù)減去1(或等于第二字母的冪指數(shù);2. 二項展開式的功能注意到二項展開式的各項均含有不同的組合數(shù),若賦予a,b不同的取值,則二項式展開式演變成一個組合恒等式.因此,揭示二項式定理的恒等式為組合恒等式的“母函數(shù)”,它是解決組合多項式問題的原始依據(jù).又注意到在的二項展開式中,若將各項中組合數(shù)以外的因子視為這一組合數(shù)的系數(shù),則易見展開式中各組合數(shù)的系數(shù)依次成等比數(shù)列.因此,解決組合數(shù)的系數(shù)依次成等比數(shù)列的求值或證明問題,二項式公式也是不可或缺的理論依據(jù).
教法分析:在新課程的教學(xué)中教師要向?qū)W生提供從事數(shù)學(xué)活動的機會,倡導(dǎo)讓學(xué)生親身經(jīng)歷數(shù)學(xué)知識的形成與應(yīng)用過程,鼓勵學(xué)生自主探索與合作交流,讓學(xué)生在實踐中體驗、學(xué)習(xí)。因此,本節(jié)課我采用了多媒體輔助教學(xué)與學(xué)生動手操作、觀察、討論的方式,一方面能夠直觀、生動地反映各種圖形的特征,增加課堂的容量,吸引學(xué)生注意力,激發(fā)學(xué)生的學(xué)習(xí)興趣;另一方面也有利于突出重點、突破難點,更好地提高課堂效率。學(xué)法分析:初二年級學(xué)習(xí)對新事物比較敏感,通過新課程教學(xué)的實施,學(xué)生已具有一定探索學(xué)習(xí)與合作交流的習(xí)慣。但是一下子要學(xué)生從直觀的圖形去概括出抽象圖形全等的概念這是比較困難的。因此,我指導(dǎo)學(xué)生:一要善于觀察發(fā)現(xiàn);二要勇于探索、動手實驗;三要把自己的所思所想大膽地進行交流,從而得出正確的結(jié)論,并掌握知識。
教學(xué)目標:知識與能力目標:1.能夠借助三角函數(shù)的定義及單位圓推導(dǎo)出三角函數(shù)的誘導(dǎo)公式 2.能夠運用誘導(dǎo)公式,把任意角的三角函數(shù)的化簡、求值問題轉(zhuǎn)化為銳角的三角函數(shù)的化簡、求值問題情感目標:1.通過誘導(dǎo)公式的探求,培養(yǎng)學(xué)生的探索能力、鉆研精神和科學(xué)態(tài)度 2.通過誘導(dǎo)公式探求工程中的合作學(xué)習(xí),培養(yǎng)學(xué)生團結(jié)協(xié)作的精神; 3. 通過誘導(dǎo)公式的運用,培養(yǎng)學(xué)生的劃歸能力,提高學(xué)生分析問題和解決問題的能力。 一導(dǎo)入:二、自學(xué)(閱讀教材第110---112頁,回答下列問題) 在直角坐標系下,角的終邊與圓心在原點的單位圓相交于,則,(一)終邊相同的角:終邊相同的角的 公式一:_______ ________________(二)關(guān)于軸的對稱點的特征: 。對于角而言:角關(guān)于軸對稱的角為_______公式二:__________ _________ _________
(一)例題引入籃球聯(lián)賽中,每場比賽都要分出勝負,每隊勝1場得2分,負1場得1分。某隊在10場比賽中得到16分,那么這個隊勝負場數(shù)分別是多少?方法一:(利用之前的知識,學(xué)生自己列出并求解)解:設(shè)剩X場,則負(10-X)場。方程:2X+(10-X)=16方法二:(老師帶領(lǐng)學(xué)生一起列出方程組)解:設(shè)勝X場,負Y場。根據(jù):勝的場數(shù)+負的場數(shù)=總場數(shù) 勝場積分+負場積分=總積分得到:X+Y=10 2X+Y=16
Step 5: After learning the text, discuss with your peers about the following questions:1.John Snow believed Idea 2 was right. How did he finally prove it?2. Do you think John Snow would have solved this problem without the map?3. Cholera is a 19th century disease. What disease do you think is similar to cholera today?SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.keys:1. John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.2. No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.3. SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.Step 6: Consolidate what you have learned by filling in the blanks:John Snow was a well-known _1___ in London in the _2__ century. He wanted to find the _3_____ of cholera in order to help people ___4_____ it. In 1854 when a cholera __5__ London, he began to gather information. He ___6__ on a map ___7___ all the dead people had lived and he found that many people who had ___8____ (drink) the dirty water from the __9____ died. So he decided that the polluted water ___10____ cholera. He suggested that the ___11__ of all water supplies should be _12______ and new methods of dealing with ____13___ water be found. Finally, “King Cholera” was __14_____.Keys: 1. doctor 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk 9.pump 10.carried 11.source 12.examined 13.polluted 14.defeatedHomework: Retell the text after class and preview its language points
The grammatical structure of this unit is predicative clause. Like object clause and subject clause, predicative clause is one of Nominal Clauses. The leading words of predicative clauses are that, what, how, what, where, as if, because, etc.The design of teaching activities aims to guide students to perceive the structural features of predicative clauses and think about their ideographic functions. Beyond that, students should be guided to use this grammar in the context apporpriately and flexibly.1. Enable the Ss to master the usage of the predicative clauses in this unit.2. Enable the Ss to use the predicative patterns flexibly.3. Train the Ss to apply some skills by doing the relevant exercises.1.Guide students to perceive the structural features of predicative clauses and think about their ideographic functions.2.Strengthen students' ability of using predicative clauses in context, but also cultivate their ability of text analysis and logical reasoning competence.Step1: Underline all the examples in the reading passage, where noun clauses are used as the predicative. Then state their meaning and functions.1) One theory was that bad air caused the disease.2) Another theory was that cholera was caused by an infection from germs in food or water.3) The truth was that the water from the Broad Street had been infected by waste.Sum up the rules of grammar:1. 以上黑體部分在句中作表語。2. 句1、2、3中的that在從句中不作成分,只起連接作用。 Step2: Review the basic components of predicative clauses1.Definition
Step 7: complete the discourse according to the grammar rules.Cholera used to be one of the most 1.__________ (fear) diseases in the world. In the early 19th century, _2_________ an outbreak of cholera hit Europe, millions of people died. But neither its cause, 3__________ its cure was understood. A British doctor, John Snow, wanted to solve the problem and he knew that cholera would not be controlled _4_________ its cause was found. In general, there were two contradictory theories 5 __________ explained how cholera spread. The first suggested that bad air caused the disease. The second was that cholera was caused by an _6_________(infect) from germs in food or water. John Snow thought that the second theory was correct but he needed proof. So when another outbreak of cholera hit London in 1854, he began to investigate. Later, with all the evidence he _7_________ (gather), John Snow was able to announce that the pump water carried cholera germs. Therefore, he had the handle of the pump _8_________ (remove) so that it couldn't be used. Through his intervention,the disease was stopped in its tracks. What is more, John Snow found that some companies sold water from the River Thames that __9__________________ (pollute) by raw waste. The people who drank this water were much more likely _10_________ (get) cholera than those who drank pure or boiled water. Through John Snow's efforts, the _11_________ (threaten) of cholera around the world saw a substantial increase. Keys: 1.feared 2.when 3. nor 4.unless 5.that/which 6.infection 7.had gathered 8.removed 9.was polluted 10.to get 11. threat
This happens because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. Like magnets, these molecules are attracted to each other, and so they appear to move around on the plate, taking the food coloring with them, making it look like the colors are quickly moving to escape from the soap.Listening text:? Judy: Oh, I'm so sorry that you were ill and couldn't come with us on our field trip. How are you feeling now? Better?? Bill: Much better, thanks. But how was it?? Judy: Wonderful! I especially liked an area of the museum called Light Games.it was really cool. They had a hall of mirrors where I could see myself reflected thousands of times!? Bill: A hall of mirrors can be a lot of fun. What else did they have?? Judy: Well, they had an experiment where we looked at a blue screen for a while, and then suddenly we could see tiny bright lights moving around on it. You'll never guess what those bright lights were!? Bill: Come on, tell me!? Judy: They were our own blood cells. For some reason, our eyes play tricks on us when we look at a blue screen, and we can see our own blood cells moving around like little lights! But there was another thing I liked better. I stood in front of a white light, and it cast different shadows of me in every color of the rainbow!? Bill: Oh, I wish I had been there. Tell me more!? Judy: Well, they had another area for sound. They had a giant piano keyboard that you could use your feet to play. But then, instead of playing the sounds of a piano, it played the voices of classical singers! Then they had a giant dish, and when you spoke into it, it reflected the sound back and made it louder. You could use it to speak in a whisper to someone 17 meters away.? Bill: It all sounds so cool. I wish I could have gone with you? Judy: I know, but we can go together this weekend. I'd love to go there again!? Bill: That sounds like a great idea!