【正文】 k properly, that girl could pass herself off in three months as a duchess at an ambassador39。s own speech. That39。s that? That ain39。ve a right to sell flowers, I have. I ain’t no thief. I39。t any change.E: I can giv’ou change, cap’in.G: (surprised) For a pound? I39。4貝爾是個(gè)閑不住的人，他對許多其他領(lǐng)域的發(fā)明都感興趣。在探求改進(jìn)電報(bào)的過程中，貝爾發(fā)明了第一臺(tái)電話機(jī)！ 貝爾完全懂得這項(xiàng)發(fā)明的重要性，他寫信告訴他的父親說：“這樣的一天即將到來。這種原始的電報(bào)是在一段距離中用莫爾斯電碼傳遞信息（莫爾斯電碼是通過電線發(fā)出的以特定的次序敲擊出的一連串點(diǎn)劃），. 但是這樣只能一次發(fā)一個(gè)信息。他發(fā)現(xiàn)他把嘴唇放在母親的額頭上，并以一定的方式來移動(dòng)額骨，就可以使她聽懂他所說的話。s life.亞歷山大專利局還有一大批審查人員，他們的唯一職責(zé)就是審查你的專利申請是否有效。因?yàn)樗鼈兌际嵌旧?，所以很顯然我還得改進(jìn)我的捕蛇方案。于是我就等著。我決定采用最后一種方法。我要發(fā)明某種仁慈的東西，既可以把蛇捉住，而又不會(huì)傷害它們。 habitat and the icecubes on top of the bowl to keep it cool. Finally I covered the whole thing with a large bucket. Then I waited. After two hours I removed the bucket and the bowl. The snakes were less active but they were still too fast for me. They abruptly disappeared into a convenient hole in the wall. So I had to adjust my plan. For the second attempt I froze the bowl and the icecubes again but placed them over the snakes39。3 ◎ 如果某個(gè)動(dòng)物群體沒有足夠的多樣性以戰(zhàn)勝疾病，那么克隆這種動(dòng)物的所有努力都將是無用的。s first cloned twin calves1981 first experimental clones of mice 2002 first cloned cats1983 first experimental clones of cows 2005 first cloned dog… From time to time people suggest that extinct animals like dinosaurs, can possibly be brought back to life through cloning. Unfortunately, with what we know now, this is either impossible or unsuitable. There are many reasons. ◎ The initial requirement is that you need perfect DNA (which gives information for how cells are to grow). ◎ All efforts of cloning an animal will be in vain if there is not enough diversity in the group to overe illnesses. Diversity in a group means having animals with their genes arranged in different ways. The advantage is that if there is a new illness some of these animals may die,but others will survive and pass on the ability to resist that disease to the next generation. The great drawback to cloning a group ofanimals is that they would all have the same arrangement of genes and so might die of the same illness. Then none of them would be left to continue the species. ◎ It would be unfair to clone any extinct animals if they were to live in a zoo. A suitable habitat would be needed for them to lead a natural life. Based on what we know now, you cannot clone animals that have been extinct longer than 10,000 years. Actually, dinosaurs disappeared 65,000,000 years ago. So the chance of dinosaurs ever returning to the earth is merely a dream.恐龍的回歸？ 克隆兇猛和滅絕的野生動(dòng)物的可能性一直使電影制片商感到興奮。它引起了爭議，因?yàn)樗蝗淮蜷_了人們的眼界，看到了有可能：用克隆技術(shù)來治療重病，甚至克隆出人類。 9．這頭小羔羊就是母羊(B)所提，供的細(xì)胞核克隆而成的。2．在卵細(xì)胞中取出細(xì)胞核。這種現(xiàn)象也發(fā)生在動(dòng)物身上，從同一個(gè)原生卵子產(chǎn)生性別和相貌相同的雙胞胎也是克隆。 Cloning從1882年至1940年，天使島成為一個(gè)著名的移民站，許多中國人在那兒申請美國居住權(quán)。 傍晚，跟彼得和泰莉一起去中國城。 在漁人碼頭看了這么多東西，我太累了，什么也不想干了。先是乘纜車，在山頂攬勝，觀看舊金山灣及整個(gè)城市。s a tourist area with lots of shops, sea food restaurants and bakeries. It39。最近期的移民 在最近的幾十年里，加利福尼亞成了更多的亞洲人的家，包括朝鮮人、柬埔寨人、越南人和老撾人。 19世紀(jì)后期，其他國家的移民，比如意大利人來到了加利福尼亞，他們主要是漁民，也有制酒工人。發(fā)財(cái)夢很快就吸引了世界各地的人。在首批移居加州的西班牙人中，大部分是宗教人士，他們的職責(zé)是向原住民傳授天主教。美洲土著人 最早的一批人具體是在什么時(shí)候來到我們現(xiàn)在所知道的加利福尼亞地區(qū)的，誰也說不清楚。 Aland歐洲人在16世紀(jì)來到這兒后，土著人遭受了極大的苦難，成千上萬的人被殺害或被迫成為奴隸。但是，這個(gè)州至今仍然保留著很強(qiáng)的西班牙的影響。事實(shí)上很少有人圓了發(fā)財(cái)夢。這個(gè)行業(yè)吸引了大量的歐洲人，包括許多猶太人。人們認(rèn)為，要不了多久，多種國籍的混合將會(huì)非常之大，以致不可能存在一種主要的種族或文化群體，而是多種族、多文化的混合體。t feel like doing anything else. Early bed tonight!Tuesday 13th, June Teamed up with a couple from my hotel (Peter and Terri) and hired a car. Spent all day driving around the city. There39。他曾經(jīng)看到過一次可怕的交通事故：一輛馬車剎車失靈，駕車失控，車子和馬一起從山上滑了下去，很明顯這讓他受到了極大的震驚。有一種專門為旅游者選定的駕車游活動(dòng)。這兒看到了一些有趣的寺廟，不少的集貿(mào)市場和大量的餐館，還有美術(shù)館和一個(gè)博物館。他們在墻上寫詩，抒發(fā)孤獨(dú)的情感，痛惜以前在中國的生活。s illnesses were more appropriate to a much older animal. Altogether Dolly lived six and a half years, half the length of the life of the original sheep. Sadly the same arbitrary fate affected other species, such as cloned mice. The questions that concerned all scientists were: Would this be a major difficulty for all cloned animals? Would it happen forever? Could it be solved if corrections were made in their research procedure? On the other hand, Dolly39。第一，園藝師一直用它生產(chǎn)大量的供商用的植物；第二，它在對新植物物種的研究以及對動(dòng)物的醫(yī)學(xué)研究方面都是很有價(jià)值的。該細(xì)胞核應(yīng)包含生產(chǎn)一頭新羊所需要的全部基因。接著傳來了多莉病重的壞消息。各國政府惶恐不安而且更加謹(jǐn)慎，有些政府開始改革司法制度，明令禁止進(jìn)行克隆人類的研究。類似這樣的電影很受歡迎，證明了這一想法使人們感到既興奮又恐懼。經(jīng)過克隆的動(dòng)物群體的最大缺點(diǎn)是：它們的基因排列有可能完全相同，因而它們有可能會(huì)死于同一種疾病，這樣它們也可能一個(gè)也留不下來傳種接代了。inventionss a matter of waiting and hoping. You39。但是，看來只有一種毒蛇的藥粉。我把這個(gè)碗放進(jìn)冰箱，冷凍了24個(gè)小時(shí)。于是我只得調(diào)整我的計(jì)劃。但是經(jīng)過仔細(xì)監(jiān)視，證明這些蛇是制造不了麻煩的，一切都按計(jì)劃進(jìn)行著?，F(xiàn)在就是等，待和期盼了。格雷厄姆每次當(dāng)你這樣做的時(shí)候，你一定會(huì)發(fā)現(xiàn)你從未見過的東西。但是他發(fā)現(xiàn)這個(gè)問題很難解決?！? 這項(xiàng)專利是1876年發(fā)布的，但是貝爾是在五天以后才跟他的助手華生通了第一次電話。這種四面體非常穩(wěn)定，被證明是在橋梁設(shè)計(jì)中的無價(jià)之寶。 第四單元 皮格馬利翁ReadingPYGMALIONMAIN CHARACTERS:Eliza Doolittle (E): a poor flower girl who is ambitious to improve herselfProfessor Higgins (H): an expert in phonetics, convinced that the quality of a person39。t be troublesome, there39。ou take down my words for? How do I know whether 39。 ere, cap39。s garden party. Perhaps I could even find her a place as a lady39。s quite brilliant! How did you do that, may I ask?H: Simply phonetics studied and classified from people39。ve wrote about me!H: Here you are. (hands over the paper covered in writing)E: What39。t it? (leaves)E: (disappointed at the oute, but thinking it is better than nothing) Thank you, sir. (sees a man taking notes and feels worried) Hey! I ain’t done nothing wrong by speaking to that gentleman. I39。m sorry but I haven39。Unit格雷厄姆如果聲波能夠以連續(xù)運(yùn)動(dòng)的電波形式復(fù)制的話，那么聲波就可以沿著導(dǎo)線傳送出去了。貝爾并非一開始就想要發(fā)明電話的，他本來想設(shè)計(jì)的東西是多路電報(bào)。這一愛好促使他發(fā)明了麥克風(fēng)。s ear drum and the other to a piece of smoked glass, Bell noticed that when he spoke into the ear, the straw drew sound waves on the glass. Suddenly he had a flash of inspiration. If sound waves could be reproduced in a moving electrical current, they could be sent along a wire. In searching to improve the telegraph,Bell had invented the first telephone! Bell was fully aware of the importance of his invention and wrote to his father:The day is ing when telegraph wires will b