?? 新概念英語第三冊
共 1411 條英漢對照例句 · 第 42 頁
Lesson 55 From the earth Greetings
Whether a planet can support life depends on the size and brightness of its star, that is its 'sun'.
一顆行星是否能夠維持生命取決于它的恒星——即它的“太陽”——的大小和亮度。
Lesson 55 From the earth Greetings
Imagine a star up t twenty times larger, brighter, brighter and hotter than our own sun.
設想一下，一顆恒星比我們的太陽還要大，還要亮，還要熱20倍，
Lesson 55 From the earth Greetings
A planet would have to be a very long way from it to be capable of supporting life.
那么一顆行星為了維持生命就要離開的它的恒星非常遠。
Lesson 55 From the earth Greetings
Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop.
反之，如果恒星很小，維持生命的行星就要在離恒星很近的軌道上運行，而且要有極好的條件才能使生命得以發展，
Lesson 55 From the earth Greetings
But how would we find such a planet? At present, there is no telescope in existence that is capable of detecting the presence of life.
但是，我們如何才能找到這樣一顆行星呢？現在，沒有一臺現存的望遠鏡可以發現生命的存在。
Lesson 55 From the earth Greetings
The development of such a telescope will be one of the great astronomical projects of the twenty-first century.
而開發這樣一臺望遠鏡將會是21世紀天文學的一個重要的研究課題。
Lesson 55 From the earth Greetings
It is impossible to look for life on another planet using earth-based telescopes.
使用放置在地球上的望遠鏡是無法觀察到其他行星的生命的。
Lesson 55 From the earth Greetings
Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets.
地球周圍溫暖的大氣層和望遠鏡散出的熱量使得我們根本不可能找到比行星更小的物體。
Lesson 55 From the earth Greetings
Even a telescope in orbit round the earth, like the very successful Hubble telescope, would not be suitable because of the dust particles iron solar system.
即使是一臺放置在圍繞地球的軌道上的望遠鏡——如非常成功的哈勃望遠鏡——也因為太陽系中的塵埃微粒而無法勝任。
Lesson 55 From the earth Greetings
A telescope would have to be as far away as the planet Jupiter to look for life in outer space, because the dust becomes thinner the further we travel towards the outer edges of our own solar system.
望遠鏡要放置在木星那樣遙遠的行星上才有可能在外層空間搜尋生命。因為我們越是接近太陽系的邊緣，塵埃就越稀薄。
Lesson 55 From the earth Greetings
Once we detected a planet, we would have to find a way of blotting out the light from its star, so that we would be able to 'see' the planet properly and analyze its atmosphere.
一旦我們找到這樣一顆行星，我們就要想辦法將它的恒星射過來的光線遮暗，這樣我們就能徹底“看見”這顆行星，并分析它的大氣層。
Lesson 55 From the earth Greetings
In the first instance, we would be looking for plant life, rather than 'little green men'.
首先我們要尋找植物，而不是那種“小綠人”。
Lesson 55 From the earth Greetings
The life forms most likely to develop on a planet would be bacteria.
行星上最容易生存下來的是細菌。
Lesson 55 From the earth Greetings
It is bacteria that have generated the oxygen we breathe on earth.
正是細菌生產出我們在地球上呼吸的氧氣。
Lesson 55 From the earth Greetings
For most of the earth's history they have been the only form of life on our planet.
在地球上發展的大部分進程中，細菌是地球上唯一的生命形式。
Lesson 55 From the earth Greetings
As Earth-dwellers, we always cherish the hope that we will be visited by little green men and that we will be able to communicate with them.
小綠人來拜訪我們，而我們可以和他們交流。
Lesson 55 From the earth Greetings
But this hope is always in the realms of science fiction.
但是，這種希望總是只在科幻小說中存在。
Lesson 55 From the earth Greetings
If we were able to discover lowly forms of life like bacteria on another planet, it would completely change our view of ourselves.
如果我們能夠在另一顆行星上找到諸如細菌的那種低等生命，那么這個發現將徹底改變我們對我們自己的看法。
Lesson 55 From the earth Greetings
As Daniel Goldin of NASA observed, 'Finding life elsewhere would change everything.
正如美國國家航空和宇宙航空局的丹尼爾。戈爾丁指出的“在其他地方發現生命會改變一切。
Lesson 55 From the earth Greetings
No human endeavor or thought would be unchanged by it.
任何人類的努力和想法都會發生變化?！?/div>
Lesson 56 Our neighbour, the river
The river which forms the eastern boundary of our farm has always played an important part in our lives.
形成我們農場東部邊界的一條河流一直在我們生活中發揮著重要作用。
Lesson 56 Our neighbour, the river
Without it we could not make a living.
要是沒有這條河，我們就無法生存下去。
Lesson 56 Our neighbour, the river
There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.
泉水只能滿足家庭生活用水，因此我們必須從河里抽水以用于農業生產。
Lesson 56 Our neighbour, the river
We tell river all our secrets.
我們向那條河傾訴我們的秘密。
Lesson 56 Our neighbour, the river
We know instinctively, just as beekeepers with their bees,
我們本能地懂得，就像養蜂人和他的蜜蜂那樣，
Lesson 56 Our neighbour, the river
that misfortune might overtake us if the important events of our lives were not related to it.
要是我們不把生活中的重大的事件告訴那條河，就可能大禍臨頭。
Lesson 56 Our neighbour, the river
We have special river birthday parties in the summer.
夏天，我們為這條河舉辦特殊的生日宴會。
Lesson 56 Our neighbour, the river
Sometimes were go upstream to a favourite backwater, sometimes we have our party at the boathouse,
有時，我們溯流而上來到我們喜愛的回水河汊舉辦；有時在船塢舉辦。
Lesson 56 Our neighbour, the river
which a predecessor of ours at the farm built in the meadow hard by the deepest pool for swimming and diving.
那船塢是農場一位前輩在一塊草地上蓋的，草地緊挨著一個專供游泳、跳水的深水池。
Lesson 56 Our neighbour, the river
In a heat wave we choose a midnight birthday party and that is the most exciting of all.
天氣炎熱時，我們便選擇在半夜舉辦生日聚會，這種聚會是最令人激動的。