Malls are popular places for Americans to go.Some people spend so much time at malls that they are called mall rats1. Mall rats shop until they drop in the hundreds of stores under one roof2 ①.
People like malls for many reasons②.They feel safe because malls have police stations of private3 security4 guards5③.Parking6 is usually free，and the weather inside is always fine. The newest malls have beautiful rest areas with waterfalls7 and large green trees.
The largest mall in the United8 States is the mall of America in Minnesota④.It covers 4.2 million square feet.It has 350 stores，eight night clubs，and a sevenacre9 park!There are parking spaces for 12,750 cars. About 750,000 people shop there every week.
The first indoor mall in the United States was built in 1965 in Edina，Minnesota.People love doing all their shopping in one place.More malls are built around the country.Now，malls are like town centers where people come to do many things，they shop，of course，they also eat in food courts that have food from all over the world.They see movies at theaters.Some people even get their daily exercise by doing the new sport of mall walking.Others go to malls to meet friends.
In some malls，people can see a doctor or a dentist and even go to the church.In other words，people can do just about everything in malls.Now people can actually live in their favorite shopping center.
Help：
①under one roof 在同一所房子里，在同一部门里 e.g.We work under one roof every day.
②reason 原因、动机、理由 e.g.Give me your reasons for going.
③private security guards 私人保安
④Minnesota 美国的明尼苏达州
扩展：简单句
1. 主语+谓语(不及物动词) [S + V]
解读：在此句型中，谓语动词是不及物动词，其后没有宾语。有时为了表示动作发生的频率、原因、结果、目的、场所、时间等，可以带状语修饰动词。如：
My head aches1.我头疼。
The children are playing happily2. 孩子们正在高兴地玩。
2. 主语+谓语(及物动词)+宾语 [S+V+O]
解读：该句型中的谓语动词是及物动词，其后必须跟宾语才能使句意表达完整、准确。宾语可以由名词、代词或相当于名词的词或短语充当。如：
I finished3 reading4 the book. 我读完了这本书。
The Greens enjoy living5 in China. 格林一家喜欢住在中国。
3. 主语+谓语+表语 [S+V+P]
解读：此句型中的谓语动词是系动词，它本身有一定含义，但不能单独作谓语，它必须和表语一起构成谓语。表语通常由名词、形容词、代词、数词、介词短语及不定式结构等充当。该句型谓语动词为连系动词。常见的系动词有：be(是); get(变得), become(成为), turn(变得), look(看起来), feel(感到), smell(闻起来), taste(尝起来), sound(听起来), seem(似乎) 等。如：
My books are on the desk. 我的书在书桌上。
The food seems6 to be nice. 这食物似乎不错。
He became7 a famous8 doctor. 他成为了一名著名的医生。
The apple pie9 tastes really delicious10. 苹果派吃起来真是好吃。
4. 主语+谓语+间接宾语+直接宾语 [S+V+InO+DO]
解读：在该句型中，间接宾语有时也可以改成一个由to或for引起的短语，放在直接宾语之后，即构成主语+谓语+直宾+介词+间宾的句型。这种句型中的及物动词后跟双宾语，既指人的间接宾语和指物的直接宾语。也可以把间接宾语放在直接宾语之后，但要加介词for或to。如：
Could11 you pass me the salt (= Could you pass the salt to me) 请你把盐给我好吗
Uncle Wang made12 the farmers many machines13.(=Uncle Wang made many machines for the farmers. ) 王叔叔给农民们制造了很多机器。
My aunt bought me a computer. = My aunt bought a computer for me. 我阿姨买给我一台电脑。
I passed him the salt. = I passed the salt to him. 我把盐递给他。
5. 主语+谓语+宾语+宾语补足语 [S+V+O+OC]
解读：宾补的作用是说明宾语的动作或状态。它可以由名词、形容词、副词、动词不定式和介词短语等充当。
点击一：使役动词make, let, have等后接不带to的不定式作宾补。如：
He made me work twelve hours a day. 他让我一天工作十二小时。
点击二：感官动词see, hear, watch, feel, notice等后既可接不带to的不定式作宾补，也可用v-ing形式作宾补。前者表示动作已结束，后者表示动作正在发生。试比较：
He saw14 a girl get on the bus. 他看见一个女孩上车了(上车的动作已经结束)。
He saw a girl getting on the bus. 他看见一个女孩在上车(上车的动作正在进行)。
