In the botanic garden we can find a(n)________ of plants that range from tall trees to small flowers.

A. species　　　　　　　　　　    B. group　　　　　　　　　　    C. amount　　　　　　　　　　    D. variety

 

答案：D
解析：

variety of =various

 


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[　　]

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I miss one teacher in particular that I had in high school. I think she was a good teacher because she was a very strict person. I remember very vividly （清晰地） a sign over her classroom door. It was a simple sign that said, “Laborato­ry—in this room the first five letters of the word was emphasized （強調）, not the last seven.” In other words, I guess, labor（勞動） for her was more important than oratory, which means making speeches.

She prepared her work very care­fully and demanded us to do the same. We got lots of homework from her. Once she had broken her arm, and everybody in the class thought that maybe the home­work load would be reduced, but it con­tinued just the same. She checked our work by stamping her name at the bot­tom of the papers to show that she had read them.

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A．A patient teacher.                                B．An honest teacher.

C．A strict teacher.                                  D．A hard-working teacher.

2. The teacher put up the sign over her classroom door ___.

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       B．to advise the students to follow the disciplines

       C．to warn the students not to be careless

       D．to tell the students to work hard in the classroom

3. When the teacher’s arm was broken, she ___.

A．gave her students the usual am­ount of homework

B．gave her students less homework

C．a(chǎn)sked her students to check the homework themselves

D．gave her students more homework

4. What’s the writer’s opinion of dis­cipline?

A．It makes the students dislike their teachers.

B．It does good to the students in the long run.

C．It’s too much for young children.

D．It does more harm than good to the students.

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