【正文】 當(dāng)增加細(xì)節(jié)，以使行文連貫； 3)開頭和結(jié)尾已為你寫好。Dear Rick, How is everything going?Best sincerely, Li Hua范文： Dear Rick, How is everything going? I had a fiveday trip to London last would like to express my gratitude for your hospitality and kindness when I was in that you take a great fancy to Chinese culture, especially the Dragon Boat Festival, I would love to introduce it to Dragon Boat Festival, one of the most traditional festivals in China, falls on the May 5th in the lunar celebrate this festival in memory of Qu Yuan, who was a Chinese , people in China will also hold a variety of activities to honor him, such as dragon boat racing、eating zongzi and so to will have an unforgettable experience if you e to China before this sincerely, Li Hua10.(介紹春節(jié))假定你是李華，你的美國朋友Mike想了解中國的春節(jié)，請你給他寫封回信介紹這個節(jié)日。要點如下： 1)春節(jié)的由來及寓意； 2)春節(jié)的慶祝活動；3)邀請他到來中國歡度春節(jié)。注意：1)詞數(shù)100左右；2)可以適當(dāng)增加細(xì)節(jié)，以使行文連貫； 3)開頭和結(jié)尾已為你寫好。Dear Mike, In your last letter, you mentioned that you want to know something about the Spring am writing to tell you about it.…Yours , Li Hua范文： Dear Mike, In your last letter, you mentioned that you want to know something about the Spring am writing to tell you about Festival has a long history, which was originally celebrated to scare away a fierce beast “Nian”.Slightly different from that in the past, it is now given new meanings and regarded as a way for people to enjoy reunion with their families however far they live or the New Year’s Eve, each family has its members gathered tell each other their lives in the past year, exchange gifts and eat a lot of delicious meals in the warmth of the can get lucky money in red have a good time, holding opera performances, and other hope you will e here and experience this wonderful , Li Hua11.(介紹廣場舞)假定你是李華。近日有網(wǎng)友在推特貼出了中國大媽帶領(lǐng)美國大媽在新澤西大跳廣場舞的照片，你的美國朋友David看過后，很想了解中國流行的廣場舞（square dance）的相關(guān)情況。請你用英語給他寫封回信，要點包括： 1)廣場舞跳的時間、地點、參與人員等； 2)廣場舞流行的原因； 3)廣場舞的缺點。注意：1)詞數(shù)100左右；2)可以適當(dāng)增加細(xì)節(jié)，以使行文連貫； 3)開頭語和結(jié)束語已為你寫好。Dear David，I am writing to tell you something about the square dance in , LiHua范文：Dear David, I am writing to tell you something about the square dance in the morning or after dinner, people, especially elderly women, will gather in squares to dance to popular and more young people are also joining in are many reasons behind its of all, China has made great progress in its social and economical development in the past decades, and people have more time and energy to enjoy , doing the square dance is a good way for people to keep , just as each coin has two sides, this kind of dance has also leads to some example, dancers play loud music and occupy lots of public places, which annoy many other square dancers need to make some , Li Hua12.(應(yīng)聘信)假定你是李華。你在校英文報上看到了一則招聘啟事。A Research Assistant Wanted Our university in the countryside is looking for a research must have strong puting suits a graduate from puting Albert Lee at Lee@ for application or for more 。內(nèi)容要點如下： 1)陳述應(yīng)征原因；2)說明應(yīng)征相關(guān)經(jīng)驗； 3)被聘用后的決心。注意：1)詞數(shù)100左右；2)可以適當(dāng)增加細(xì)節(jié)，以使行文連貫； 3)開頭和結(jié)尾已為你寫好。Dear Ms Lee, …I’m looking forward to your sincerely, Li Hua范文：Dear Ms Lee, I have learned from your advertisement that you are in need of a research believe I can do the job well, so I’d like to apply for ’m Li Hua, a boy aged 18, and I have just graduated form high ’ve been very interested in puter，so my puter teacher used to asked me to help him in , I was chosen to take part in a puter design Luckily our group took the first place in working and energetic, I shall be a freshman of puter , I’m convince that I’m qualified for the hired, I would be very grateful and I would devote myself to the ’m looking forward to your sincerely, Li Hua13.(安慰信)假定你是李華，你的美國朋友Tony因考試發(fā)揮失常，成績不理想而情緒低落。請給他寫封信表示安慰，要點如下： 1)表示難過和理解；2)找出錯誤原因并及時改正； 3)鼓勵他重拾自信，實現(xiàn)夢想。注意：1)詞數(shù)100左右；2)可以適當(dāng)增加細(xì)節(jié)，以使行文連貫； 3)開頭和結(jié)尾已為你寫好。Dear Tony, …Yours , Li Hua范文：Dear Tony, I’m sorry to hear that you didn’t do well in your exam and that you are very worried about your quite understand how you feel is no doubt that we should keep a good state of we know, failure is the mother of should spare no efforts to analyze the cause of failure, which could help us find out the mistakes we made and try to make up for the lack of knowledge and skills in those in this way can we make progress in our hope that by the time this letter reaches you, you’ll be feeling much ’s work hard together and turn our dream into , Li Hua第五篇：2018年高考化學(xué)熱點題型預(yù)測之三2018年高考化學(xué)熱點題型預(yù)測之三綜合實驗型化學(xué)實驗選擇題1．【2017新課標(biāo)1卷】實驗室用H2還原WO3制備金屬W的裝置如圖所示（Zn粒中往往含有硫等雜質(zhì)，焦性沒食子酸溶液用于吸收少量氧氣），下列說法正確的是A．①、②、③中依次盛裝KMnO4溶液、濃H2SO焦性沒食子酸溶液 B．管式爐加熱前，用試管在④處收集氣體并點燃，通過聲音判斷氣體純度 C．結(jié)束反應(yīng)時，先關(guān)閉活塞K，再停止加熱D．裝置Q（啟普發(fā)生器）也可用于二氧化錳與濃鹽酸反應(yīng)制備氯氣某學(xué)習(xí)小組設(shè)計實驗制備供氧劑氫化鈣(CaH2)，實驗裝置如下圖所示。已知:①鈣能與H2O、HCl、O2 等反應(yīng)。②氫化鈣遇水劇烈反應(yīng)。下列說法正確的是 ，粗鋅(含少量銅)比純鋅反應(yīng)速率慢 ，裝置b中盛裝濃硫酸 ，后打開活塞K 3．某同學(xué)為測定Na2CO3固體(含少量NaC1)的純度，設(shè)計如下裝置(含試劑)進(jìn)行實驗。下列說法不正確的是A．必須在②③間添加吸收HC1的裝置B．④的作用是防止空氣中的氣體影響實驗的精確度C．反應(yīng)后通入空氣的作用是保證②中產(chǎn)生的氣體完全轉(zhuǎn)移到③中D．根據(jù)稱取樣品和③中產(chǎn)生的沉淀的質(zhì)量即可求算Na2CO3固體的純度，部分固定裝置未畫出。下列有關(guān)說法正確的是A．關(guān)閉K2，打開K1，滴加硫酸，則裝置B中每消耗1molNa2O2，轉(zhuǎn)移電子數(shù)為NA B．關(guān)閉K1，打開K2，試劑X是酸性KMnO4或FeCl3溶液，均可證明SO2有還原性 C．為防止環(huán)境污染，裝置C和E中的試劑均取用飽和的石灰水 D．實驗過程中體現(xiàn)了硫酸的酸性、吸水性、難揮發(fā)性、強(qiáng)氧化性(FeC2O42H2O)是一種淡黃色粉末，某課外小組利用下列裝置檢驗草酸亞鐵晶體受熱分解的部分產(chǎn)物。下列說法正確的是③和⑤中分別盛放足量NaOH溶液和CuO，可檢驗生成的CO ①中反應(yīng)結(jié)束后再通入N2 ④中的無水CaCl2換成無水硫酸銅可檢驗分解生成的水蒸氣 ，①中淡黃色粉末完全變成黑色，則產(chǎn)物一定為鐵某學(xué)習(xí)小組設(shè)計實驗制備Ca(NO2)2，實驗裝置如圖所示(夾持裝置已略去)。已知:2NO+CaO2==Ca(NO2)2；2NO2+CaO2==Ca(NO3)2。下列說法不正確的是、D中的試劑可分別為水和濃硫酸 和CO ，被稱作“電器工業(yè)的主角”。銅主要是黃銅礦煉制。焙燒時發(fā)生反應(yīng)2CuFeS2+O2 高溫 Cu2S+2FeS+SO2，其筒單流程如圖所示，下列說法正確的是 可用于火法煉制銅 8．利用如圖裝置進(jìn)行實驗，下列有關(guān)實驗操作和現(xiàn)象正確的是A．緩慢通入N2，再加熱Ⅰ處的碳酸氫鈉，可觀察到Ⅱ處過氧化鈉粉末由淺黃色變成白色B．緩慢通入N2，加熱Ⅰ處KClO3和MnO2的混合物，可觀察到Ⅱ處干燥KI淀粉試紙變成藍(lán)色C．先對Ⅰ處的氯化銨加熱，再緩慢通入N2，可看到Ⅰ處固體減少，Ⅱ處無固體沉積D．先緩慢通入CO2，再加熱Ⅰ處炭粉，可觀察到Ⅱ處氧化鐵粉末由紅色變成黑色10．某同學(xué)用含有鐵銹(Fe2O3)的廢鐵屑來制取氯化鐵晶體的裝置(省略夾持裝置，氣密性已檢查)如圖所示。下列推斷不合理的是()A．燒杯中H2O2溶液作用是將Fe氧化為Fe B．A中存在氧化鐵與鹽酸反應(yīng)生成氯化鐵的反應(yīng) C．B中收集到的氣體是氫氣D．反應(yīng)后的燒杯中通入少量SO2，則溶液顏色立即由棕黃色變?yōu)闇\綠色2＋3＋