老师：Hello everyone, welcome to the English class. Today we will continue to learn Unit 5 working the land. The focus of this period is to discover useful structures. In this class, you will identify and summarize the uses of non classes as subjects and use subject classes to talk about what qualities make a person so successful. Let's have a quick review of the text on page fifty.
老师：what can you learn about 袁隆平？
老师：from it according to the test。
老师：袁隆平 is known as the father of hybrid rice。
老师：He has received numerous awards. He makes large donations to support agricultural research. He is still full of vision. Here is more information about Yuan Longping, which will help you know more about him. what yuanlong ping really cared about was not money or celebrity that yuanlong ping had realized his dream。 Of seawater. Rice surprised the whole world.
老师：so we see 袁隆平 is really a great person。
老师：Well, here's a question, do you find it difficult to understand these two complex sentences? Let's focus on the structure and see whether we can have better understanding of them. Look at Activity 1 in the textbook. Look at the complex sentences and state the functions of the noun classes, italicized.
学生：首先，有些同学对 NON classes 没有概念，我们一起来看一下在英语中有的从句在复合句中的作用。相当于名词，称作名词性从句。
老师：have a look at these two complex sentences the first one what yuanlong ping really cared about was not money or celebrity。 What is the function of the non class italicized? Right? It is used as the subject of the sentence. We call it subject class.
学生：袁隆平真正关心的不是名和利。根据句意，我们可以知道， what 在主语从句中不是疑问词，而是连接代词。 Next.
老师：One that yuan longping had realized his dream of seawater rice surprised the whole world， what is the function of the non classy， telesized good it is also used as the subject of the sentence this is another subject class.
学生：That.引导主语从句 that 放在句首不可以省略，让句子的成分更明确。这句话的意思为袁隆平实现了他海水道的梦想震惊了全世界。
老师：This sentence is also can be written like this it surprised the whole world that yuan longping had realized his dream of developing seawater， rice.
学生：That.引导的主语从句放在了句尾作形式，主语放在了句首，这是该类型主语从句更常见的形式，句意不变。
老师：Since you have known the structure and function of the subject classes, please read the text again and find similar complex sentences from the text. Have you finished? Good. Let's have a look at them together.
老师：In paragraph 2, we can find this sentence. However, what concerned him most was that farmers often had poor harvest and sometimes even had a serious shortage of food to eat.
学生：然而，真正令他担心的是，农民们的收获很少，有些时候甚至出现了食物短缺的现象。
老师：what is the subject class right？ what concern him most， in paragraph three we can find this sentence how this could be done was a challenging question at that time。
学生：这件事儿如何被解决在当时是个有挑战性的问题。
老师：and the subject classes right？ How this c
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