to be
01
是, 在
used when naming, or giving description or information about people, things, or situations
Linking Verb: to be [adj] | to be sb/sth | to be to do sth
例子
Today is her birthday.
今天是她的生日。
Sarah is a talented artist.
莎拉是一位有才华的艺术家。
1.1
是, 由...组成
used for saying what something is made of
Linking Verb: to be particular constituent parts or material
例子
The cake is three layers of deliciousness.
这个蛋糕是三层美味。
Is your table solid wood?
你的桌子是木制的吗？
1.2
是
to express equality between things
Linking Verb: to be sth
例子
Two plus two is four.
二加二等于四。
Let y be the product of p and q.
设y 为 p和q的乘积。
1.3
花费, 是
used for talking about the cost of something
Linking Verb: to be a particular price
例子
' What 's the price of the coffee machine? ' ' It 's $ 80.'
'咖啡机的价格是多少？' '是80美元。'
The tomatoes are $ 2 per pound.
西红柿是每磅2美元。
1.4
是, 属于
used for indicating who owns something or who it is meant for
Linking Verb: to be for sb | to be someone's
例子
The car in the driveway is Mary 's; the other one is mine.
车道上的车是玛丽的；另一辆是我的。
This book is for Tim.
这本书是给蒂姆的。
1.5
是, 代表
used for indicating how great the importance of something is to someone
Linking Verb: to be sth | to be [adj]
例子
Family was everything to me.
家人对我来说就是一切。
Success is nothing without fulfillment in one's personal life.
成功若没有个人生活中的存在满足感就什么都不是。
02
是
to have an existence
Linking Verb: to be sb/sth
例子
Is there a solution to this complex problem?
这个复杂的问题有解决办法吗？
There 's a rumor circulating about the new project.
有一个关于新项目的谣言在流传。
例子
Once upon a time, there was a little cottage in the woods.
从前，树林里有一座小木屋。
The park is across the street.
公园在街的对面是。
2.2
在
to have a presence
Intransitive: to be somewhere
例子
Is there a doctor in the house?
房子里有医生在吗？
There is a teacher in the classroom helping students with their assignments.
教室里有一位老师正在帮助学生完成作业。
03
举行, 发生
to happen or take place
Intransitive: to be somewhere | to be point in time
例子
The graduation ceremony will be in the auditorium.
毕业典礼将在礼堂举行。
The annual festival is in July.
年度节日在七月举行。
04
是, 做
used for talking about time
Linking Verb: to be a specific time | to be [adj]
例子
It 's five minutes past nine.
现在是九点五分。
It was early morning when the ceremony started.
仪式开始时是清晨。
05
是, 做
used for talking about the weather
Linking Verb: to be [adj]
例子
It is sunny and warm at the beach today.
今天海滩上阳光明媚，温暖 是。
Why is it so foggy near the mountains?
为什么山附近会这么雾蒙蒙的？
06
去过
used in the perfect tenses to mean to go or visit
Intransitive: to be somewhere
例子
Have you ever been to Paris?
你去过巴黎吗？
She has n't been to the museum since it reopened.
自从博物馆重新开放以来，她还没有去过。
6.1
已经, 去
used in the perfect tenses to mean to come or visit
Dialect
British
BritishIntransitive
例子
The plumber has been to repair the leaky faucet.
水管工来修理漏水的龙头。
Has the cleaning service been to tidy up the house?
清洁服务来整理房子了吗？
07
是, 说
used to express what someone has said
例子
She was all, " I ca n't believe you did n't tell me about the party! "
她说，“我不敢相信你没告诉我派对的事！”
When I suggested a road trip, he was like, " That sounds amazing! "
当我建议公路旅行时，他说，“听起来太棒了！”
08
在
(auxiliary) used with the present participle form of a verb in forming progressive tenses
例子
She is working on a new project.
她正在做一个新项目。
We will be waiting for you at the airport.
我们将在机场等你。
8.1
被
(auxiliary) used with the past participle form of a verb when forming the passive voice
例子
The book was read by thousands of people.
这本书被成千上万的人阅读。
The decision was made by the committee.
决定是由委员会做出的。
