【正文】 ause of their diversity, seven separate groupings or divisions of algae have been established by botanists. 因為 他們 的多樣性，植物學家已經建立了藻類的七個獨立的團體或部門。 4 Some of the members demanded to know why they had been kept in ignorance of the true facts until they reached the present critical stage. 一些成員要求知道為什么他們一直在 無知 的事實，直到他們達到目前的關鍵階段。 4 Nothing further was known about the incident, but the captain assured the passengers that the crew would be conducting a thorough investigation. 3/36 沒有進一步了解事件，但船長 向 乘客 保證 ，機組人員將進行徹底的調查研究。 The first American to orbit the earth, John Glenn was a pioneer in the US space program. 美國第一個進入 地球 軌道 ，約翰格倫，美國太空計劃 的先驅 。 3 Some panies and factories rely so heavily on puters that there are major problems when their puter systems break down. 一些工廠和公司過分的依賴電腦，他們的電腦系統(tǒng) 故障 時 會 有重大問題。 3 Electrical energy is collected in the atmosphere as water is collected and stored in a dam. 電能量采集大氣中的水的收集和 儲存 在一個大壩。 3 The manager wants to know whether the measures have been agreed upon. 經理想知道 (關于 )這些措施是否已商定。 3 When pared with the size of the whole earth, the highest mountain does not seem high at all. 當 和整個地球的尺寸 相比 ，最高的山峰，似乎一點也不高。 On second thoughts they’ve decided to give up the purchase of the new assembly line. 經過 再三考慮 ，他們決定放棄購買新的裝配線。 2 It seems to be high time that this argument were put to an end. 似乎是 爭吵 （被） 結束 時候。 2 Melted iron is poured into the mixer much in the same way as tea is poured into a cup from a teapot. 鐵水倒入攪拌機 以同樣方式 如同 茶倒入茶壺。 2 In our apartment, there are five rooms, the largest of which is used as a livingroom. 在我們的公寓里，有五間客房， 其中最大的 是用作起居室。 2 If we can get over our present difficulties, everything will be all right. 如果我們能夠 克服 目前的困難，一切都會好的。 While nuclear weapons present potential dangers, the predominant crisis of overpopulation is with us today. 雖然核武器存在 潛在 危險的人口過剩的危機，是我們今天。 1 Science is a cooperative activity, and everyone can contribute something to it, if he wishes to do so. 科學是一個合作的活動，大家可以 有助于 它，如果他希望這樣做。 all changes of matter involve changes in the form of the energy. 哪 里有物質， 就 有能量；物質的變化 涉及 所有能源形式的變化。 1 Grain production in the world is soaring, but still millions of people go hungry. 國際糧食生產 直線上升 ，但仍以百萬計的人挨餓。 1 The toy train won’t start because the battery has run down. 玩具火車無法啟動，因為電池 用完了 。 1 Life depends on the balance between the heat received from the sun and the heat lost to cooler surroundings. 生命取決于熱量接收 來自太陽和熱量輸給了涼爽的環(huán)境兩者之間的 平衡 。 The aircraft had reached its altitude of about 39,000 feet. 飛機到達 海拔 約 39000 英尺 。 The energy released by the chain reaction is transformed into heat. 連鎖反應 釋放 的能量被轉化成熱量。 We have to try every means to bring down the costs of the production. 我們必須千方百計地 降低 生產費用的。 No agreement was reached as to how the construction plan should be carried out. 沒有達成協議 關于 如何建設計劃進行 。1/36 第一部分 基礎知識 詞匯與語法專項練習 (120 題 ) (所有的翻譯均用金山 詞霸 翻譯 或有道在線翻譯，僅供參考 ) In spite of the difficulties we have e across, we’ll go on with the program. 盡管 困難重重，我們遇到了，我們會繼續(xù)這個計劃 。 You will see only the shape of the trees in the dim light. 在昏暗的燈光下 ， 你只會看到樹的 形態(tài) 。 The fact that most people believe nuclear war would be madness does not mean that it will never occur. 事實上，大多數人相信核戰(zhàn)爭是愚蠢的行為，并不意味著它永遠不會發(fā)生。 Only a few people have access to the full facts of the accident. 只有少數人 了解 事故的全部事實。 You see the lightning the instant it happens, but you hear the thunder later. 你看到閃電的 瞬間 發(fā)生，但你聽到雷聲 。 The continual breakdowns of the puter has caused serious delays in our project. 我們的項目 ， 連續(xù)的 電腦故障，造成了嚴重的延誤 。 1 The construction workers extended the road for three more kilometers. 建筑工人路 延長 了三公里。 1 Since he was convinced of the accuracy of the data, he stuck to his opinion. 因為他相信數據的準確性，他 堅持 他的意見。 1 Wherever there is matter, there is energy。 1 The waterproof coating will wear away quickly or after many years, depending on use and care. 防水涂層 磨損 快，許多年后，這取決于使用和護理。 1 The automatic doors in supermarkets facilitate the entry and exit of customers with shopping carts. 超市的自動門 方便 出入境推著購物車的顧客。 2 Had it not been for your encouragement, I’d never have invented this machine. 2/36 如果沒有 你的鼓勵，我從來沒有發(fā)明這種機器。 2 All buses having been canceled because of the heavy snow, they had to go there on foot. 所有的公共汽車因為大雪 被取消 ，他們只好步行去那里。 2 It’s highly necessary that the rocket not be launched until all the preparations have been made. 這是非常必要的，火箭 不能啟動 直到 一切準備就緒。 2 Oil, of which there are several different types, is used for many purposes by countries all over the world. 油， 其中 有幾種不同的類型，用于多種用途的國家遍布世界。 2 The puter has brought about surprising technological changes in the way we produce and anize information. 對 顯 示 和組織信息 的 方式 ， 電腦帶來了驚人的技術變化。 3 So little did I know about mathematics that the lecture was pletely beyond me. 所以 我 不 知道 數學講座 ， 我完全聽不懂。 3 We’ll attend an international conference held in Paris provided we have enough time. 我們要參加一個國際會議在巴黎舉行， 假如 我們有足夠的 時間。 3 We make some rubber from petroleum, but natural rubber es from trees in Southeast Asia. 我們從石油 中提煉出 了一些橡膠，但 天然 橡膠來自南洋 的（ 橡膠 ） 樹 。 3 Research findings show we spend about two hours dreaming every night, no matter what we may have done during the day. 研究結果表明，我們每晚大約有兩個小時做夢，不管我們白天 可能已經 做了 。 3 As we know, the oxygen content of Mars is not sufficient to support life. 我們知道，氧含量不 足 夠 支持生命的火星。 4 Ronald Reagan had served two terms as governor of California before he became President. 羅納德里根在 他成為 總統(tǒng) 前 曾擔任 2 任加利福尼亞總督。 4 The importance of interior design bees evident when we realize how much time we spend surrounded by four walls. 室內 設計的重要性變得明顯時，我們意識到我們有多少時間花包圍的四堵墻。 4 To maintain production levels, we must locate and develop or acquire new oil and gas reserves to replace those depleted by production. 保持生產水平，我們必須 找出 并發(fā)展或獲得新的石油和天然氣儲量接替那些枯竭的生產。 4 Although “nova” means new, novas a