根据题目要求完成下列任务，用中文作答。
下面是某教师的课堂教学片段：
片段一：
T: Look at the sentences and fill in the blanks with 'that' and 'what'.
（1） She is no longer she used to be.
（2） I lived in you call 'Ancient Greece'.
（3） The result is he lost the game.
（4） Everybody knows he wants to go abroad.
（5） Many people don‘t know is the true happiness.
Ss: （Do the job.）
T: Now let‘s check the answers. （Check the answers and analyze each sentence.）
T: Now please answer the following questions.
Q1: What sentence component does 'that' act in the clause?
Q2: What sentence component does 'what' act in the clause?
Ss: （Discuss in pairs， think and conclude the rules.）
片段二：
T: Good! Here is the rule. Who can give us more examples to show the rules?
Ss: ...
T: Now look at the picture and make sentences
I: By using object and Dredict iive clauses.
请根据所给材料回答下列三三个问题。
（1）这是课堂教学的哪两个环节?该教师在这两个阶段分别采用_『哪两种语法教学方法?
（6分）
（2）该教师在第二个环节中使用了哪种语法操练方法?清作出简要评析．（12分）
（3）除片段中该教师采用的操练方法外，语法操练还有哪些其他谚’式?清简要分析（12分）