K
keen［kiːn］adj. 热心的
I'm very keen on indoor sports. 我非常喜欢室内运动。
He is very keen to visit Canada. 他渴望访问加拿大。
keep［kiːp］(kept，kept) vt. 保持；培养；饲养 vi. （食品）保持新鲜；保持健康
An apple a day keeps the doctor away. 一天一苹果，医生远离我。
I asked how she kept so young and healthy. 我问她是如何保持这样年轻健康的。
key［kiː］n. 钥匙；答案；关键
The high school years are a key period. 高中是一个关键时期。
Did you know the key to the problem？ 你知道这道题的答案吗？
keyboard［'kiːbɔːd］n. 键盘
His talent at the keyboard has taken him to the world. 他在电子琴上的天赋让他走向世界。
The trouble lies in the keyboard. 毛病出在键盘上。
kick［kɪk］v. & n. 踢
Which team has kicked a goal？ 哪个队进球了？
Peter gave the door a kick. 彼得一脚向门踢去。
kid［kɪd］vt. & vi. 开玩笑 n. 小孩
Are you kidding？ 你在开玩笑吧？
The kid's mother didn't think he did wrong. 孩子的母亲认为孩子没有做错。
kil ［kɪl］vt. & vi. 杀死；弄死
I tried to kill the fly. 我试图打死那只苍蝇。
Those flowers may kill in winter. 那些花在冬天可能会凋零。
kilogram［'kɪləgræm］n. 千克（公斤）
The cat weighs about two kilograms. 这只猫大约重2千克。
These bananas cost five yuan per kilogram. 这些香蕉每公斤五元。
kilometer［'kɪləmiːtə(r), kɪ'lɒmɪtə(r)］n. 千米（公里）
It's about one kilometre from here. 从这里（走过去）大约有一公里。
Our school is half a kilometre away from here. 我们学校离这儿有半公里。
kind［kaɪnd］adj. 善良的；友好的 n. 种类；本质
She is a kind woman. 她是一位善良的妇人。
It is famous for many kinds of tasty fruits．它以各种美味的水果而闻名。
kindergarten［'kɪndəgɑːtn］n. 幼儿园
In the kindergarten, many girls like to listen to the stories. 在幼儿园里，许多小女孩喜欢听故事。
There are many children in the kindergarten. 这所幼儿园里的孩子很多。
kindness［'kaɪndnəs］n. 仁慈；好意
Edith treated them with kindness. 伊迪丝对他们很好。
I feel honored by your kindness. 您的好意使我感到荣幸。
king［kɪŋ］n. 国王
The king had him hanged the next day. 第二天国王下令绞死了他。
The king was old and he knew it was time to choose a new king. 国王老了，他知道是选出新国王的时候了。
kitchen［'kɪtʃɪn］n. 厨房
A boy came in the kitchen. 小男孩走进了厨房。
We clean up the kitchen together. 我们一起打扫厨房。
kite［kaɪt］n. 风筝
You can choose either the kite or the toy car. 你可以选风筝或者玩具车。
He is flying a kite. 他正在放风筝。
knife［naɪf］（复 knives) n. 小刀
You mustn't play with the knife．你不许玩刀。
Could you pass the knives to me？ 你能把那些小刀给我吗？
knock［nɒk］n. & vi. 敲（门）；打；击
I heard a knock at the door. 我听到有人敲门。
Victor knocked at the door before he walked into the room. 维克托走进房间前敲了敲门。
know［nəʊ］(knew，known) vt. & vi. 知道；了解；认识；懂得
He never knows how difficult it is. 他从不知道这有多难。
I have known him for years. 我已经认识他许多年了。
knowledge［'nɒlɪʤ］n. 知识；学问
Knowledge is learned rather than being taught. 知识是靠学的，不是靠教的。
Paper provided an important way to communicate with knowledge. 纸为知识的交流提供了重要的途径。
