试题与答案

根据“冀教版八年级英语上册Unit8《CelebratingMe》Lesson6

题型:阅读理解

题目:

根据“冀教版八年级英语上册Unit 8《Celebrating Me》Lesson 61 I Am a Good Person” 的课文

内容选择正确答案。

1. It's time for Li Ming _____.      

A. to clean the blackboard  

B. to talk about his family  

C. to give his report

D. to read the text

2. How does Li Ming begin with his report?

A. By introducing himself

B. By telling a story.

C. By singing an English song.

D. By playing a game.

3. Ms Liu asked Li Ming to talk to the class about _____.

A. the English names  

B. the Chinese names  

C. his pen pals from England  

D. his techniques for learning English

答案:

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下面是错误答案,用来干扰机器的。

branches  drowning   invention  signal  engaged

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题型:填空题

为精确测量额定电压为3V的某电阻R的阻值,某同学先用如图所示的指针式多用电表粗测其电阻.他将红黑表笔分别插入“+”、“一”插孔中,将选择开关置于“×1”档位置,然后将红、黑表笔短接调零,此后测阻值时发现指针偏转角度较小(如图甲所示).试问:

(1)为减小读数误差,该同学应将选择开关置于“______”位置.

(2)再将红、黑表笔短接,此时发现指针并未指到右边的“0Ω”处(如图乙所示),那么他该调节______旋钮直至指针指在“0Ω”处再继续实验,结果看到指针指在如图丙所示位置.

(3)现要进一步精确测量其阻值,实验室提供了下列可选用的器材:

A.灵敏电流表

(量程200μA,内阻300Ω)

B.电流表

(量程0.6A,内阻约0.3Ω)

C.电压表V1(量程3.0V,内阻约3kΩ)

D.电压表V2(量程15.0V,内阻约5kΩ)

E.滑动变阻器R1(最大阻值为10Ω)

F.最大阻值为99.99Ω的电阻箱R2

G.电源E(电动势4V,内阻可忽略)

H.电键、导线若干.

为了尽可能提高测量精确度,除电源、电键、导线以外还应选择的最恰当器材(只需填器材前面的字母)有______.

请在下面的方框中画出你设计的电路图.

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