【正文】 吸入來自空氣的有害氣體，產(chǎn)生為我們呼吸的氧氣。它們是對抗空氣污染的主要戰(zhàn)士。我知道樹木也使我們的生活更方便。在我們?nèi)粘Ｉ钪性S多東西來自于樹木。例如，紙和鉛筆。你是對的，麗貝卡。確切地說，我們從樹木得到的更多。我們從它們中得到水果和油。茶葉也是來自樹木的葉子。環(huán)顧這個(gè)房間。許多及家具由木頭制成。樹木在我們?nèi)粘Ｉ钪姓娴氖侵匾摹Ｎ液茈y想象沒有樹木的世界。但是我們每年砍伐數(shù)以百萬計(jì)的樹木。我們應(yīng)該停止做這個(gè)，如果我們不想要一個(gè)沒有樹木的世界的話。Unit 5 Water talksDora was in the tap was on.“Turn that tap off,” said an angry voice.” You’re wasting water.” Dora looked around, but there was no one there.“Who are you?”“I’m a drop of you know where I e from?” “From the tap?” asked Dora.“A few days ago, I was in a cloud,” said the drop of water.“Then I dropped into a river and ran into a it was time for people to clean me.”“Clean you?” Dora asked.“ was cleaned me and added some chemicals to I travelled through the pipes under the streets and now I’m here.”“Dora asked, “So is this the end of your journey?”“ will make me clean ’ll go into a river and then into the sea again.” “Again? ”“ journey starts not to waste or pollute ’m valuable.” Dora turned the tap off and came out of the 朵拉在浴室里。水龍頭打開著?！瓣P(guān)掉水龍頭，”一個(gè)生氣的聲音說?！澳阍诶速M(fèi)水?！?朵拉環(huán)顧四周，但是沒有一個(gè)人在那里?！澳闶钦l”“我是一滴水。你知道我來自哪里嗎？” “來自水龍頭？“朵拉問。“幾天前，我在一朵云彩里，”這滴水說。“然后我掉進(jìn)河里，流進(jìn)一個(gè)水庫。然后到了人們清潔我的時(shí)候了?！?“清潔你？”朵拉問?！笆堑?。我是臟的。他們清潔我，并且給我添加一些化學(xué)物質(zhì)。然后我通過街道下面的管子旅行，現(xiàn)在我在這里。朵拉問，“因此這是你旅行的終點(diǎn)了？”“不。人們將再次使我干凈。我將流進(jìn)一條河里，然后再次進(jìn)入大海?！薄霸俅?？ ”“是的。我的旅行在那里開始。記得不要浪費(fèi)或污染我。我是寶貴的?！?朵拉關(guān)掉水龍頭，出了浴室。Unit 6 Electricity all aroundOne evening, Daisy said,” I’m going to buy a packet of anyone want anything?” Benny, Daisy’s brother replied, “ Can you get me a packet of electricity?” “Yes, I can,” said she went laughed, “She can’t buy electricity in packets like sweets!She’ll look foolish.”Mum said, “You mustn’t say that, Benny!”“What do you know about electricity, Benny?” Dad asked.“Electricity gives us flows through ’s like water, in a way,” said Benny.“You’re right!Electricity es into our flat through thin are connected to cables under the street,” Dad added.“What are the cables connected to?” asked Benny.“They’re connected to a power station,” answered moment later, Daisy came back.“May I have my packet of electricity?” Benny asked.“Here you are!” said Daisy.“But?these are batteries!” said Benny.“Daisy’s right,” said Dad.“The chemicals inside batteries produce electricity.” Mum said, “Who looks foolish now, Benny?”周圍的所有電一天晚上，黛西說，“我打算去買一袋糖。有人想要任何東西嗎？”本尼，黛西的哥哥回答，“你能給我買一袋電嗎？” “是的，我能，“黛西說。然后她出去了。本尼笑了，“她不能像糖果一樣用袋的形式買電！她會看起來愚 蠢的?！?媽媽說，“你不要說哪個(gè)，本尼！” “關(guān)于電你知道什么，本尼？爸爸問?！薄半娊o我們能量。它通過電線流動(dòng)。它像水，在某種程度上，”本尼說。“你是對的！電通過細(xì)電線來到我們公寓?！?這些與街道下面的電纜相連接，“爸爸補(bǔ)充道。電纜與什么相連接呢？“本尼問?！八鼈兣c一個(gè)發(fā) 電站相連接，”爸爸回答。一會后，黛西回來了。“我可以拿我那袋電 嗎？”本尼問?！敖o你!”黛西說?！暗?這些是電池！”本尼說?！镑煳魇菍Φ?，”爸爸說?！半姵乩锏幕瘜W(xué)物質(zhì)生產(chǎn)電?！眿寢屨f，“誰現(xiàn)在看起來愚蠢的，本尼？” Unit 7He es home, has a shower他回家，洗個(gè)淋浴 , And eats dinner, every Now, he’s sitting in his favourite chair現(xiàn)在，他正坐在他最愛的椅子上Too tired to laugh or ，不能笑和玩。He reads his book or newspaper他讀書和看報(bào) To learn what’s new Soon he’ll go to He’s a boring man, my ，我的爸爸。Then I see him working，然后我看見他工作On the building 。He’s high up in the clouds他高高的在云朵里Higher than a 。He’s walking on a narrow piece of wood他正走在一根狹窄的木頭上Not worried about the height，不擔(dān)心高度，Not afraid, not afraid like ，不像我一樣害怕。He’s a superman, my ，我的爸爸。 old newspaper sellerHe’s sitting at the newspaper stand他正坐在報(bào)紙攤 Near the bus stop，在公交站附近，And he’s 。It’s very 。But he’s 。A bus stops, and the people rush ，和人們快速出來They’re hurrying to 。They don’t have much time to 。They take their papers quickly，他們快速地拿他們的報(bào)紙，And put down some 。But he’s a patient man，但是他是一個(gè)耐心的人，And he’s still 。A crowd of people，一群人，All very busy, with tired faces，都很忙，有著疲倦的臉，And just one 。Is there just one smile in this city?在這個(gè)城市里剛剛只有一個(gè)微笑嗎？Or will you make it two?或者你會使它成為兩個(gè)嗎？ Let’s make a million smiles!讓我們制作一百萬個(gè)微笑吧！Unit 8My lifetime hobby—studying stars By Patrick MooreWhen I was eight, I got a book about was the beginning of lifetime used to go outside with my mum on clear nights and look velvet with a million diamonds on different seasons, we saw different groups of we saw stars shooting brightly across the beautiful they were!Studying the stars was great fun for I learnt a little about them, I soon wanted to find out more and it is my host a TV programme called The Sky at use my knowledge to tell people about the stars in a lively am proud of my TV programmeit has lasted for more than 50 years!我一生的愛好—研究星星 當(dāng)我8歲的時(shí)候，我得到一本關(guān)于星星的書。那是我一生愛好的開 始。我曾經(jīng)在晴朗的夜晚和媽媽外出，看上面有著一百 萬顆鉆石的天鵝絨。在不同的季節(jié)，我們看了不同組別的星星。有時(shí)我們看見星星明亮地射過天空。他們是多漂亮呀！研究星星對我來說太好玩了。曾經(jīng)我學(xué)會了關(guān)于它們的一點(diǎn)，我不就想要找到越來越多的?，F(xiàn)在它是我的職業(yè)。我主持了一個(gè)叫‘夜晚星空’的電視節(jié)目。我使用我的知識用一種活潑的方法去告訴人們關(guān)于星星。我以我的電視節(jié)目自豪—它已經(jīng)持續(xù)50多年了。