主题句必须明确表明所要比较的对象和所要比较的范围，实际上就是罗列两个或两个以上比较对象的相同点大学英语四级写作要求大学英语四级写作要求。
Learning English is like building a house. Laying a solid foundation is the first and most important step. In other words, you should read and speak English every day. Memorizing new words and phrases is also helpful. Like building a house, learning English takes some time.
So don’t be impatient. Remember, Rome wasn’t built in a day.
常用语汇：at the same time, similar to, accordingly, both, show a degree of similarity, similarly, the same as, and? too, in the same way, in a like manner