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问题 选择题

实数方程|x2﹣5x+4|+x2﹣5x+4=0的解集是[ ]

A．{1，4}  

B．{x|1≤x≤4}  

C．{x|x≤1或x≥4}  

D．{x|1＜x＜4}

答案

答案：B

判断题
判断下列句子与图片是否相符，相符的打“√”，不符的打“×"。
( ) 1.  This is my family.
( ) 2.  He is a teacher.
( ) 3.  My brother is a police officer.
( ) 4.  My mother is a bus driver.
( ) 5.  My father is a doctor.
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句型转换

根据要求改写句子。

1. Yes, I can do the housework.（对此句进行提问） 

                                                                                             

2. Mike can sweep the floor.（改成否定句）

                                                                                              

3. Her favourite food is fish.（对划线部分提问） 

                                                                                             

4. are  for  vegetables  us  healthy（连词成句）  

                                                                                               

5. I would like some eggplants for lunch.（对划线部分提问）

                                                                                           

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