It is no use/good doing… 做……没有用
It is no wonder that… ……毫无疑问。/……是确定无疑的。
It is not any use/good doing… 做……没有用
It is one's turn to do sth. 轮到某人做……
It is polite/impolite to do… ……(不)礼貌。
It is possible that… ……有可能……(可能性最小)
It is probable that… ……有可能……(可能性最大)
It is reported that… 据报道……
It is said that… 人们说……
It is suggested that… 人们建议……
It is tempting to conclude that… 我们可以推出结论……
It is thought that… 人们认为……
It is up to sb.(to do) 由某人来决定
It is useless doing… 做……没有用
It is/was+被强调部分+连词+从句 (强调句型)
It is+adj.+of sb. =sb. is adj. 某人怎么样
It is+n.+for sb. to do sth. = To do sth. is n. for sb. 做某事对某人是……
It makes no difference. 没有什么区别。
It occurred to sb. that… 某人忽然意识到……
It seems that… 看起来……
It seems to sb.… 在某人看来……
It seems/looks/sounds as if/though… 看起来(听起来)好像……(有虚拟语气形式)
It so happened that… 偶然地、碰巧
It turned out that… 好像……(接主语从句)
join in 参加(大型活动)
join sb. in 参加……(接名词，表示活动)
judge by/from 以……来判断……
Judging by/from…, 从……判断，……
jump with joy 高兴地跳起来
keep (sb./sth.) away from 阻止、远离
keep a certain distance away 保持一定距离
keep a strict eye on sb./sth. 密切地关注……
keep as a young man 年轻时候
keep back ①阻止、阻挡、使……后退 ②扣留、保留
keep fit 保持身体健康
keep good hours 保持良好的生活节奏
keep in touch with 与……保持联系
keep off 使……离开
keep on doing sth. 持续做某事
keep one's promise/words 遵守某人的诺言
keep out 使……不进入
keep quiet 保持安静
keep sb. doing sth. 让某人一直做某事
keep sb. from doing sth. 阻止某人做某事
keep silent 保持沉默
keep sth. in check 阻止、防止、阻碍
keep the record 保持纪录
keep the rules 遵守规则
keep up 维持、保持(精神状态)
key points 要点
kiss each other goodbye/hello 与某人亲吻再见/问好
knock at/on the door/window 敲门、窗
knock down 绊倒
knock into sb. 撞见、突然碰见
knock over 撞翻
knock sb./sth. off… 把某人(物)从……撞掉
knock sth. into sth. 敲进……
knock sth. out of sth. 从……中敲出来
know about sb. 认识(听说过)某人
labour force 劳动力
land on its legs 用脚着地
land on 降落
Lantern Festival 元宵节(灯笼节)
laugh at sb. 嘲笑某人
laugh sb. off one's fears 使某人发笑来减轻恐惧
lay the person on his/her back 把一个人仰卧平放在某处
lead a simple life 朴素地生活
lead to 引起、导致、带来
leave for sp. 到某地
leave sb. alone 把……留下
leave sb. doing 使人处于某种状态
leave sth. to chance ……靠运气、……听天由命
leave sth. to sb./sth. 把……留给……
leave the hotel by (the nearest exit) 从(最近的出口)离开宾馆
let in 让……进来
let sb. down 让……失望
lie around 闲置、到处都是
lie in ①位于(内部) ②在于、源于
lie on ①与……接壤 ②(城市)位于(河、湖、海边)
lie on one's back 仰卧着
lie still 一直躺着
lie to 与……接壤或接近
light up 放光芒、放光彩
like doing 喜爱做(指经常发生)
like to do 愿意做(特指某一次)
line up to 满足……的要求
listen for 等着听(钟声、节目等)
live a simple life 朴素地生活
live in separate rooms 住在两个分离的房间里
live on sth. 以……为生
load with 承载、负担
long before 很久以前(常用于一般过去时、过去完成时)
look by 旁观
look down upon 贱视、鄙视、看不起
look for ahead 向前看
look for 寻找
look forward(s) to doing/sth. 期待
look in 寻找
look into 调查研究
look on sb./sth. as 把……当作
Look out. 小心。
look over ①检查②视察
look sb./sth. up and down 仔细打量……
look through 浏览
lose heart 失去信心
lose one's life/lives 丧命
lose one's sight 失明
lose one's temper 发脾气
lose one's way 迷路
lose touch with 与……失去联系
lose weight 减少体重