【正文】 the professors think of the plans , what do the students think you get the idea but … Student But w ai t till I talk to Max before proceeding . Advisor Right, he39。s part of the problem with th e CFQ. It doesn ’ t take other factors into account enough, like fetfulness. Plus you really can ’ t say you are getting objective scientific results from a subjective questionnaire where people report on themselves. S o it ’ s no surprise that someone attempted to design an objective way to measure distraction. I t ’ s a simple puter game designed by a psychologist named, Nilli Lavie. In Lavie ’ s game, people watch as the letters N and X appear and disappear in a certain area on the puter screen. Every time they see an N, they press one key, and every time they see an X they press another, except other letters also start appearing in the surrounding area of the screen with increasing frequency which creates a distraction and makes the task more difficult. Lavie observed that people ’ s reaction time slowed as these distractions increased. Student 2 Well that ’ s not too surprising, isn ’ t it? Professor No, it39。t take it in, you know? Professor Yes, and that39。t that mean that the first hypothesis y ou mentioned w as wr o ng, the one that says we don39。 s surface to approximate the dates of past geologic time periods. Ah sediment as you know i s material like sand , gravel, fossil fragments that is transported by natural processes like win d , water flow or the movement of glaciers . So sediment is transported and then deposited and it forms layers on the Earth ’ s surface over time. We examine these layers to learn about different ge ologic time periods including when they began and ended. For example, from about million years ago to around 11 thousand years ago was the Pleistocene epic. The Pleistocene epic was an ice age. During this epic, sediment was made by the kind of erosion and we athering that happens when the climate is colder, and part of those sediments are fossils of plants and animals that lived at that time. The Holocene epic followed the Pleistoce ne epic when the Earth ’ s climate warmed up around 11 thousand years ago. The Holocene e pic is characterized by different sediments, ones that form when the climate is warme r. Because the climate changed, the types of plants and animals changed also. Holocene sediments contain remnants of more recent plants and animals, so it39。m just not sure we can pare it with the industrial age. Geologists in the far future will be able t o examine the sediment being laid down today, whereas right now we can say that yes, human impact on the Earth is clear: It39。t read and understood the chapter. I mean it seemed like you really had a good understanding of it. Samantha I thought so too, but I missed some questions about cell division on the exam Professor So what happened? Samantha I just sort of blanked out, I guess. I had a hard time remembering details. It was so frustrating. Professor Alright, let39。d be much better than waiting until the night before an exam to try and absorb all those details . Samantha Oh, I didn39。 palimpsest. Archimedes li v e d in G re ece around 200 BCE, and as you probably know, he39。t until 1906 that a scholar came across the prayer book in a library and realized it was a palimpsest, and that the underlying layer of texts could only have e from Archimedes. That was when his work The Method was discovered for the first time . Um... the palimpsest then went through some more tough times, but eventually it ended up in an art auction where was bought and then donated to an art museum in Baltimore, for conservation and study. To avoid further damage to the manual script, the research team at the art museum has had to be extremely selective in their techniques they used to see the original writing. They39。s been very helpful in seeing Archimedes39。s no sunlight, no source of energy to make food. If there was any life at all, it ’ d just be some bacter ia breaking down any dead materials that might have fallen to the bottom of the ocean . And? Student 1 And what about the water pressure? D idn ’ t we talk before about how the deeper down into the ocean you go, the greater the pressure? Professor Excellent point! And not only the extreme pressure, but also the extreme temperature of the water around these vents. If the lack of sunlight didn39。適當(dāng)?shù)剡\用定語從句可以給你的文章增色不少。 1. 原因狀語從句：常由 because, as, since 和 for引導(dǎo) Eg: Noheless, I am still in favor of space travel, for its merits far outweigh demerits. 盡管如此，我還是贊成太空探險，因為它的好處遠(yuǎn)遠(yuǎn)大于壞處。 5. 目的狀語從句 : 常由 so that 和 in order that 引導(dǎo) Eg: Millions of people have to spend more time and energy on studying new skills and technology so that they can keep a favorable position in job market. 成千上萬的人們不得不花費更多的精力和時間學(xué)習(xí)新 的技術(shù)和知識，使得他們在就業(yè)市場能保持優(yōu)勢。 第四， 同位語從句。 Eg: What has caught our attention is /It is noticeable that the environment in both the rural and urban areas is deteriorating. 值得注意的是農(nóng)村和城市的生態(tài)環(huán)境 都在不斷惡化。 Eg: Only if the government will take some appropriate measures, will this intractable problem be tackled. 只有政府采取適當(dāng)?shù)拇胧?，這個棘手的問題才能被解決。 Eg: Tourism, which is a rising industry, has bee the major source of economy, playing crucial role in many Asian countries. source:veduchina 旅游業(yè)是一個新興的行業(yè)，它成為經(jīng)濟的主要來源 , 在很多東南亞國家起著尤為重要的作用。它通常由一個詞、一個短語或一個句子構(gòu)成 ,位置較為靈活 ,可置于句首、句中或句末 ,一般用逗號或破折號與句子隔開。行動起來吧 !