一、用“be+地点+方位”造十个英语句子
be+地点+方位(介词):
1. There are six boys standing on the rock.
有六个男孩站在岩石上。
2. There is a computer in the middle of the room.
房间的中央有一台电脑。
3. There are two men sitting in the living room.
起居室里坐着两个男人。
4. There was a car parking in the front of the garage.
车库前面有一辆汽车停放著.
5. There is a school at the south of the hospital.
医院的南面有一所学校。
6. There were three small buildings next to the library.
图书馆旁边有三幢小楼。
7. There is a girl sitting under the tree.
那树下坐着一个女孩.
8. There will be a big park near the supermarket next year.
明年超市附近将有一个大公园。
9. There are four ships sailing north from the harbour.
有四条船从港口向北航行。
10. There is a big sofa at the corner of the sitting room.
起居室的角落里有一大沙发。
二、助动词do 系动词BE的用法
do是修饰动词的，名词、形容词等其它词前用BE动词。
三、be+助动词的用法
be作助动词用的形式如下：
①am, is, are, was, were
②助动词+be：shall be, will be, can be, etc.
③have/has/had + been（完成时）
④am, is, …being（进行时）
（1）表达进行时态
句型 be + V-ing…（进行时态）
例：What are you reading?
（你正在阅读什么？）
I am reading a magazine.
（我正在阅读杂志。）
例：He will be taking a walk in the park at this time tomorrow morning.
（明天早晨此时他将会正在公园散步。）
例：She has been teaching English in our school for years.
（她已在我们学校教英语许多年了。）
解说 第一例句是表达现在进行时，第二例句是将来进行时，第三例句是现在完成进行时。
（2）表达被动语态
句型 be +p.p. …（被动语态）
例：English is spoken in both Canada and the United States.
（加拿大和美国都讲英语。）
例：Those keys were found in your drawer.
（那些钥匙是在你的抽屉里找到的。）
例：It can be done much faster in this way.
（这件工作用这个方法可以更加快速地做好。）
四、be experienced at/in的区别
你好，很高兴为你解答，希望帮到你
be experienced at对…有经验 at指对象 be experienced at+sth（n）/doing sth(v)
He is very experienced at mending cars.他修车很有经验。
be experienced in 在……有经验 in通常指某个领域，方面be experienced in+doing sth
An executive should be experienced in administration.
一个管理者应有行政管理的经验。
二者大体上意思差不多，没有太严格的区别
五、情态动词后面的be可以省略吗？
你现在可以走了 。这是表示允许的句子 不能用进行时
所以不是进行时 也没有省略任何东西
这是情态动词 加 动词原形 的句子 完全正确
六、助动词be+及物动词的过去分词和情态动词+be+及物动词的过去分词结构的被动语态句子8句
I was born in1994. Trees were planted by people. Flowers were watered by her. I was invited by him. Computers were used by us. The scarf was bought by me. Pens were used to write. The bike was broken. Trees must be planted for sand storm. Cigarettes mustn't be smoken . A new book can be found by me. Our homework must be done by us . The meeting must be held by them. The housework must be done by my mother. Breakfast must be eatten by us. The book can be read by many people.
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