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1. 系动词be肯定式I am, you are, he is, she is, it is, we are, you are, they are否定式I...

1. 系动词be肯定式I am, you are, he is, she is, it is, we are, you are, they are否定式I am not, you are not, he is not, she is not, it is not, we are not, you are not, they are not疑问式Am I?, Are you?, Is he?, Is she?, Is it?, Are we?, Are you?, Are they?例句：He is my friend. 他是我的朋友。I am not a student. 我不是一个学生。Are you free today? 你今天有空吗？2. 其他系动词becomeseemfeellooktastesoundsmellremainstayappeargetgrowturngoprovefallcomerunstandliekeepwearappearsound likebecome likeseem likefeel likelook likestay likeget likebecome famous asprove to be + adj./n. 证明是…fall asleep 入睡睡着fall ill 生病患病，得病fall off 跌落掉下，下车，等fall over 跌倒摔倒，等get about 走动等get across 通过穿过，等get along 前进进展，等get away 逃脱离开，等get back 回来等get in 进入收回，等get off 下车起飞，等get on 上车进展，等get out 出去离开，出版，等get over 克服恢复，原谅，等get through 通过完成，打通电话，等get up 起床等go away 离开等go by 过去等go down 下去下落，等go out 出去熄灭，等go over 检查研究，等go round 足够分配的等go through 通过检查，完成，等grow up 长大成人成熟，等keep back 留在后面阻止，抑制(情感、情绪)，隐瞒keep off 让开不接近,使避开keep out 留在外面不入内,不进入.排除在外,使不进入keep up 保持维持,继续,使不低落,不下降.维持高水平,继续下去(尽管有人反对)look after 照顾照料look at 看考虑look back 回顾回头看look for 寻找等look forward 盼望期待，等look into 调查观察，等look over 检查等look through 仔细查看等make for 走向驶向，有助于，等seem like 似乎像等sound like 听起来像等stay like 保持像…的样子get ready for 为…做准备run away from 从…逃跑stand for 代表等take care of 照顾处理，等take part in 参加等take pride in 以…自豪take turns to do sth. 轮流做某事turn into 变成把…变成turn off 关掉关闭turn on 打开开启turn over 移交翻阅，等turn up 出现到达，开大(声音)，等watch out 当心注意work on 从事等例句She seems to be very happy today. 她今天看起来很高兴。The food tastes very delicious. 这些食物味道很可口。The music sounds beautiful. 这音乐听起来很美。The picture looks like her. 这张照片看起来像她。The weather is getting colder and colder. 天气变得越来越冷。I will take care of the problem. 我会处理这个问题的。He is always ready to help others. 他总是乐于帮助别人。The flowers need to be watered every day. 这些花需要每天浇水。She is always taking turns to clean the classroom. 她总是轮流打扫教室常用搭配be sure to do sth. 确定做某事be sure of sth. 确信某事be sure about sth. 确信某事be/feel certain to do sth. 确定做某事be/feel certain of sth. 确信某事be/feel certain about sth. 确信某事例句I am sure that he will win the game. 我确信他会赢得比赛I am certain of her success. 我确信她会成功I feel certain about his honesty. 我确信他是诚实的We are not sure whether he will come or not. 我们不确定他是否会来We are not certain of his arrival. 我们不确定他是否会到达We are not certain about his plans. 我们不确定他的计划常用句型It is/was + adj. + to do sth. 做某事是…的It is/was + adj. + that + 从句 正是…的It is/was + adj. + doing sth. 正在做某事It is/was + adj. + done 已经被做完了It is/was + adj. + said/reported/learned 据说/据报道/据悉It seems/appears/happens/takes place + 从句 似乎/看来/碰巧/发生It is said/reported/learned that + 从句 据说/据报道/据悉It is the first time + 从句 这是第一次…It is not the first time + 从句 这不是第一次…例句It is difficult to answer this question. 回答这个问题很难It was important that he arrived on time. 他准时到达是很重要的It is said that the book will be published next month. 据说这本书将于下个月出版It is reported that there was a serious earthquake in the south yesterday. 据报道昨天南方发生了一次严重地震It seems that they have a lot of fun at the party. 看来他们在聚会上玩得很开心常用搭配It is/was + adj. + of sb. to do sth. 某人做某事是…的It is/was + adj. + for sb. to do sth. 某人做某事是…的It is/was + adj. + about/around/round + 时间/地点 在大约/附近/周围的时间/地点It is/was + 时间/地点 + since + 从句 自…以来已经多久了It is/was + 时间段 + before + 从句 过了多久才…It is/was + 被修饰的名词 + which/that + 从句 正是…的例句It is kind of you to help me. 你能帮我真是太好了It is important for us to learn English well. 对我们来说学好英语很重要It was about 7 o'clock when we arrived. 我们到达时大约是七点钟It is three years since I left my hometown. 自从我离开家乡已经三年了It was a long time before we found the missing child. 过了很久我们才找到失踪的孩子It was the book that we were looking for. 这正是我们要找的书