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K2 n. 乔戈里峰 【背景】该山为世界第二高山，高8616.3米(28250英尺)，1856年被命名为K2峰。该峰是喀喇昆仑山脉第二座被测高的山峰，以英国军人兼勘探者亨利·哈弗商姆·戈德温-奥斯丁的名字命名。 keep v. 1.保留，保存：I keep old letters. 我保存旧信。/ Will the tomatoes keep until tomorrow? 这西红柿能留到明天不坏吗？2.保持，继续：Please keep quiet. 请保持安静。/ He kept thinking it over.他心里老想着这件事。/ Keep straight on until you get to the church. 一直朝前走就走到教堂了。3.遵守，保守：He keeps to his promise. 他守约。/ Can you keep a secret? 你能保守秘密吗？4.供养，饲养：He keeps a dog. 他养了一条狗。/ It costs a lot to keep a family of four. 要养活一个四口之家花费很大。5.使得，(使…)保持：Illness kept her from coming yesterday. 她昨天因病没有来。/ Keep this door closed. 这扇门要经常关着。 【短语】1. keep back 阻止，后退，忍住：The police kept the crowd back. 警察使群众后退。/ She couldn't keep back her tears. 她忍不住哭了。2. keep on 继续：The rain kept on for several days. 雨一连下了好几天。/ Don't keep on asking such questions. 不要老问那样的问题。3. keep out (of) 遮挡，使不进入：The trees keep out the wind. 这些树可以挡风。/ Keep the dog out of my room. 别让狗进入我的房间。4. keep up 保持，继续：Rain kept up all night. 雨下了一整夜。5. keep up with 跟上，不落后：Try to keep up with the others. 设法不要落在别人后面。/ I had to run to keep up with the girls. 我要跑步才能跟上那些女孩子。 【考点】后接动词时要用动名词，不能用不定式，如不能说He kept to work for a whole day.(他不停地工作了一整天)，应将其中的to work改为working。另外它也不能后接不定式的复合结构，即不说keep sb to do sth，如不能说He kept me to wait，应将其中的to wait改为waiting。 key n. 1.[C]钥匙：This is the car key. 这是车钥匙。2.[C]键：tap the keys of a typewriter 敲击打字机的键 / Pianos have black and white keys.钢琴上有黑的和白的键。3.[C]关键，秘诀，答案：This is the key to the problem. 这是问题的关键。/ The key to good health is to eat and sleep regularly. 保持身体健康的秘诀是饮食和睡眠要有规律。 【考点】表示“…的钥匙”时，其后用介词 to或of均可：Have you got the key to[of] the door? 你有这门的钥匙吗？但是若用于引申义，表示“答案”、“秘诀”、“关键”等义时，其后通常要用介词to而不用of：the key to one's success 某人成功的秘诀 keyboard n.[C]键盘：the keyboard of a piano (a typewriter) 钢琴(打字机)的键盘 kick v. 踢：The boy kicked off his shoes. 这个小男孩踢掉了鞋子。/ He kicked a hole in the door. 他在门上踢了个洞。/ The horse kicked me when I tried to ride it. 我设法骑马时，它踢了我。n.[C]踢：He gave the dog a kick. 他踢了一下这条狗。/ He shut the door with a kick. 他把门一踢,把门关上了。 【用法】汉语说“踢足球”，指的是进行一项体育活动，所以此时的“足球”(football)前不能用冠词，并且此时的“踢”也不能用kick，而用play。比较：He played football with his classmates. 他同他的同学踢足球。/ He kicked the football out of the field. 他把足球踢出了球场。 kid n.[C]小孩，年轻人：school kids学童 / college kids 大学生 / How many kids do you have? 你有几个小孩？/ The kids are playing tennis. 孩子们在打网球。 kill v. (被)杀死，(被)弄死：He was killed in the battle. 他战死沙场。/ He decided to killed himself. 他决定自杀。/ These flowers kill easily. 这些花很容易枯死。 kilo n.[C]千克(=kilogram)，千米(=kilometer)：A kilo of apple, please. 我要1公斤苹果。/ He weighs 52 kilos. 他重52公斤。 kilogram n.[C]千克：I bought 3 kilograms of potatoes. 我买了两公斤土豆儿。 kilometer n.[C]千米(公里)：There are 1000 meters in a kilometer. 1公里等于1000米。/ They live 200 km from Paris. 他们住在离巴黎200公里的地方。 kind n.[C]种，类：hats of all kinds = all kinds of hats 形形色色的帽子 / He is not the kind of person to lie. 他不是那种说谎的人。adj. 善良的，友好的：Be kind to old people. 待老年人要亲切。/ It’s very kind of you to come here! 难得你来！/ He's kind and interesting. 他很友好也很有趣。 kind-hearted adj. 好心的：He is a kind-hearted person. 他是个心肠很好的人。 kitchen n.[C]厨房：We usually eat breakfast in the kitchen. 我们通常在厨房吃早餐。/ The kitchen was filled with a strange smell. 整个厨房有股怪味。 kite n.[C]风筝：The children were flying kites on the hill. 孩子们在山岗上放风筝。 knee n. 1.[C]膝盖：I fell and cut my knee. 我把膝盖摔破了。 knife n.[C]小刀：a knife and fork 一副刀叉 / This knife does not cut well. 这把刀不好用。/ He came at me with a knife. 他拿着一把刀向我袭击。 knock n.[C]敲，打：Someone is knocking at the door. 有人在敲门。v. 敲，打，撞：Please knock (on the door) before entering. 请先敲门再进来。/ I knocked my head on the car door. 我的头撞在汽车门上了。 know v. 1.懂得，知道，了解：I know English. 我懂英语。/ Please let me know your plans. 请让我了解你们的计划。/ I don’t know about it. 那件事我可不知道。/ She doesn't know which to choose. 她不知该选哪一个。2.认识：I have known him for more than 10 years. 我已认识他十几年了。3.能识别，能区分：He doesn’t know a friend from an enemy. 他不分敌友。 【短语】1. know of 听说：I known of him, but I can’t really say that I know him. 我听说过他，可是我并不认识他。2. know about 了解，知道…的情况：I don't know about that. 那事我不知道。/ I want to know about this thing now from beginning to end. 现在我想从头至尾地了解这件事的情况。 【辨析】be known as, be known for 与 be known to：be known as 表示“作为…出名”，be known for 表示“因为…出名”，be known to 表示“为…所知”：She was well known as an excellent dancer. 她作为一个杰出的舞蹈家非常有名。/ He is known for his poems. 他以他的诗出名。/ He is known to us as a story writer. 我们知道他是位小说家。 【考点】1. 通常一般不用于进行时。2.其后一般不直接跟不定式作宾语，除非其前有连接代(副)词，如不说He knows to play the piano，而说He knows how to play the piano.他会弹钢琴。 knowledge n. 1.[U]知识，学问：Knowledge is power. 知识就是力量。/ He has much knowledge of music. 他很懂音乐知识。2.[U]知道，理解，了解：It has not come to my knowledge. 这事我还不知道。/ A baby has no knowledge of good and bad. 小孩儿不解善恶。 【考点】1.是不可数名词，但有时可在其前用不定冠词表示某种程度的知识(此时a=some): He has a knowledge of history. 他懂点历史。2.要表示“有关…的知识”，要用 the knowledge of：the knowledge of history 历史知识
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