freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

tpo15聽力文本共10頁-wenkub.com

2024-10-29 14:16 本頁面
   

【正文】 Eg: College students, lacking social experience, are easily cheated. 大學(xué)生,沒有社會經(jīng)驗,容易上當(dāng)受騙。 第十,插入語。 Eg: Every means should be tried to protect the environment on which people live. 人們應(yīng)竭盡全力來保護我們賴以生存的環(huán)境。 第六,強調(diào)句 : It is + 被強調(diào)的內(nèi)容 + that Eg: It is cars and factories that release a great deal of gases, polluting the environment. 汽車和工廠排放大量的廢氣,使得環(huán)境被污染。 Eg: No one can deny the basic fact that it is impossible for average workers to master those hightechnology skills easily. 沒有人能否認這一基本事實:對于一般工人來講,輕松掌握這些技術(shù)是不可能的。 Eg: Some people claim that government should be mainly responsible for the environmental pollution. 一些人認為政府應(yīng)對環(huán)境污染負主要責(zé)任。 3. 條件狀語從句:常由 if, on the condition that 和 providing that 引導(dǎo) Eg: If you want to achieve something or intend to fulfill one of your ambitions, you must work hard, make efforts and get prepared. source:veduchina 假如你要取得成就或要實現(xiàn)你的雄心壯志,你必須努力工作、艱苦奮斗、準(zhǔn)備好條件。 Bad books contain evil thoughts. In them, there might be much description about violence, superstition, and sex. source:veduchina → Bad books, in which there might be much description about violence, superstition, and sex, contain evil thoughts. 第二, 狀語從句。t need sunlight because they take their energy from chemical reactions So, as I said, unlike green plants which are photosynthetic and their energy from sunlight, these bacteria that they found at the ocean floor, these are chemosynthetic, which means that they get their energy from chemical reactions. How does this work? As we said, these hydrothermal vents are releasing into the ocean depth this intensely hot water and here is the thing, this hot water co ntains a chemical called hydrogen sulfide, and also a gas , carbon dioxide. Now these bacteria actually bine the hydrogen sulfide with the carbon dioxide and this chemical reaction is what produces anic material which is the food for larger anisms. The researchers had n ever seen anything like it before. Student 2 : : : : Wow! So just add a chemical to a gas, and bingo, you ’ ve got a food supply? Professor Not just t h at! W hat was even more surprising were all the large anisms that lived down there. The most distinctive of these was something called the tube worm. H ere, let me show you a picture . The tube of the tube worm is really, really long. They can be up to one and half meters long , and these tubes are attached to the ocean floor, pretty weird looking, huh? And another thing, the tube worm has no. mouth, or digestive ans. So you are asking how does it eat? Well, they have these special ans that collect the hydrogen sulfide and carbon dioxide and then transfer it to another an, where billions of bacteria live. These bacteria that live inside the tube worms, the tube worms provide them with hydrogen sulfide and carbon dioxide. And the bacteria, well the bacteria kind of feed the tube worms through chemosynthesis, remember, that chemical reaction I described earlier. 新托福綜合寫作高分十大句型 十大經(jīng)典句型博得新托福綜合寫作高分 第一, 定語從句。ve been talking till now about the two basic needs of a biological munity – an energy source to produce anic materials, you know ah, food for the anism , and the waste recycling or breakdown of materials back into inanic molecules, and abo ut how all this requires photosynthesis when green plants or microbes convert sunlight into energy and also requires microanisms, bacteria, to secrete chemicals that break down or r ecycle the anic material to plete the cycle So, now we are done with this chapter of the textbook, we can just review for the weekly quiz and move on to the next chapter, right? Well, not so fas t. First, I ‘d like to talk about some discoveries that have challenged one of these fundamental assumptions about what you need in order to have a biological munity. And, well, there actually were quite a few surpris es. I t all began in 1977 with the exploration of hydrothermal vents on the ocean floor. Hydrothermal vents are cracks in the Earth ’ s surface that occur, well, the ones we are taiking about here are found deep at the bottom of the ocean. And these vents on the ocean floo r, they release this incredibly hot water, 34 times the temperature that you boil water at be cause this water has been heated deep within the Earth. Well about 30 years ago, researche rs sent a deepsea vessel to explore the ocean ’ s depth, about 3 kilometers down, way deep to ocean floor, No one had ever explored that far down before. Nobody exp ected there to be any life down there because of the conditions. First of all, sunlight doesn39。re interested in that sort of thing, you can learn more about it in an art conservation class. But act ually, it was a physicist who came up with a method that was a breakthrough. He realized that the iron in the ancient ink would display if exposed to a certain Xray imaging method, and except for small portions of the text that couldn39。 writings were originally done on papyrus scrolls. Then in the 10 th century, a scribe made a copy on parchment of some of his texts and diagrams including, as it turns out, The Method . This was extremely fortunate, since later on, the original papyrus scrolls disappeared. About 200 years later in the 12 th century, this parchment manual script became a palimpsest when a scribe used the parchment to make a prayer book. So the pages, the pieces of parchment themselves, had been preserved. But the Archimedes39。t practice regularly with your track team, an
點擊復(fù)制文檔內(nèi)容
公司管理相關(guān)推薦
文庫吧 www.dybbs8.com
備案圖片鄂ICP備17016276號-1