大学英语基础教程第1册unit2

Language Points
3. They can see in the sun and in the dark shadows. shadow n. an area of darkness, caused by light being blocked by something, which usually has a similar shape to the object that is blocking the light and which appears to be joined to it 阴影 e.g.The children were playing, jumping on each other’s shadows. 孩子们在玩，相互跳踩对方的 影子。
Lan源自文库uage Points
2. But they can move quite quickly, and get out of sight in a minute. out of sight: outside the area that you can see 消失于眼前 e.g. I dare not let the children out of my sight in this park. 在这个公园，我不敢让孩子们离 开眼前半步。 in sight: inside the area that you can see 在眼前 At last they came in sight of the city.
Language Points
4.The skin of a snake is very shiny, and it reflects light. shiny adj. of shine 耀眼的 这个词的构词方法是 n. +y。 类似的词有: wind->windy; sun->sunny; shadow->shadowy; sand>sandy等。
Language Points
1. They have to slide along the ground to get from one place to another. slide v. (cause to )move easily and without interruption over a surface 滑行 e.g. When I was little I used to like sliding on the polished floor in my socks. 我小时候常常喜欢穿袜子在光 滑的地板上滑来滑去。 He slid the letter into his pocket. 他把那封信悄悄塞进口袋。
Unit Two
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N A K E
Introductory Remarks
The sight of snakes
usually brings us the feelings of fear and dislike. However, if you know more about them, you will like them better. In fact, snakes are helpful in agriculture and ecological environments and cycle. We should protect them so that we can live a better life.
Language Points
6. Lots of people think that snakes are wet and horrible, but they are warm and dry. horrible adj. 1)very unpleasant or bad 不愉快 的，糟糕的 He’s got a horrible cold. 他得了 重感冒。 2)very shocking and frightening 令人震惊的 A horrible crime 令人震惊的犯罪
Language Points
reflect v. If a surface reflects light, heat, sound, or


an image, it sends the light, etc. back and does not absorb it. 反射 He saw himself reflected in the water/mirror/shop window. 他在水面上/镜面上/橱窗上看到了自己的影像。 reflect on sb/sth affect other people’s opinion of someone or something, especially in a bad way 负面影响 The whole affair does not reflect well on the government.
Language Points
9.The scales are a good protection for the snake. protection n. the act of protecting or state of being protected 保护 The insurance policy provides protection (=will make financial payment) in case of accidental loss of life or serious injury. 在意外丧命或严重受伤时，保险政策提供保护。
Language Points
8.Scales, which are hard and strong like human fingernails, cover every part of a snake’s body. cover v. put or spread something over something else, or lie on the surface of something 覆盖，遮盖 The light was so bright that I had to cover my eyes. 光如此强，我只好将眼蒙上。 She covered him (up) with a blanket. 她用毯子给他盖上。 How much of the Earth’s surface is covered by/with water?
Language Points
7.It feels like soft leather or silk. feel like 1) have a desire for something, or want to do something at a particular moment 想（要做某事） I feel like (going for ) a swim. 我想游泳。 2）[+ing form of verb] Want to do something that you do not do 几乎 要做 He was so rude that I felt like slapping his face. 他如此粗鲁，我几乎要扇他一耳光。
Information Related To The Text
The snake begins the shedding process by rubbing its nose against rocks or other hard objects to separate the old layer from its lips. After the old layer is loosened, the snake crawls out of its old skin, typically shedding it in a single piece.
Information Related To The Text
Many snakes have specialized jaws that enable them to swallow animals that are far larger than their own heads. Snakes’ bodies are covered with overlapping scales composed of a horny material. These transparent scales make up the dry, smooth outer layer of skin, whose primary function is to prevent water loss. Snakes regularly shed the outer layer of their skins as they grow. Even in snakes that are not growing, the scales must be periodically replaced by a new, healthy layer.
Language Points
10.Human beings, for example, usually stop growing before they are twenty. stop v. 1)finish doing something that you were doing 终止，停止 Stop shouting ——you’re giving me a headache! 别大叫大喊了，你让我头痛！ I couldn’t stop laughing. 我忍不住大笑。 2)not move anymore or make someone or make someone or something not move anymore 阻止， 停止 I heard him shout, “Stop, or I’ll shoot!”
Information Related To The Text
Snakes are cold-blooded. They cannot produce their own body heat. Instead, they rely on the sun to heat their bodies and then regulate their temperature with behavior. Since they do not rely on energy from food to generate body heat, snakes can survive on an extremely meager diet. Some wait for months between successive meals, and a few survive by eating a single, large meal just once of twice a year. When they do eat, snakes swallow their prey whole rather than biting off small pieces.
Language Points
5.But when you touch it, you feel that the skin isn’t wet. touch v. move especially the hand or another part of the body lightly onto and off something or someone 触摸 He touched the girl on the arm to get her attention. 他碰了一下女孩的胳膊来招 她注意。
Language Points
shadowy adj. 1) dark and full of shadows 阴暗的 She was started by a sudden movement in the shadowy hallway. 她被阴暗的过道中突然的走动吓了一跳。 2) describe someone or something about which little is know不明的 They are members of some shadowy extremist group.