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本课程起止时间为:2021-07-09到2021-12-24
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第二周 词类(II)介词 单元测验二

1、 问题:These transistor(晶体管) circuits can amplify(放大) voltage signals with minimum waveform distortion(波形失真). 下划线介词短语充当_
选项:
A:状语
B:定语
C:补语
D:表语
答案: 【状语

2、 问题:The sound-carrying medium may be matter in any state. 下划线介词短语充当_
选项:
A:状语
B:补语
C:定语
D:表语
答案: 【定语

3、 问题:The resistance of the load (负载)is too high for the amplifier(放大器). 前后两个下划线介词短语分别充当_
选项:
A:定语……状语
B:定语……表语
C:补语……状语
D:补语……补语
答案: 【定语……状语

4、 问题:A circuit may be defined as a path for current flow. 前后两个下划线介词短语分别充当_
选项:
A:状语……状语
B:定语……定语
C:补语……定语
D:补语……状语
答案: 【补语……定语

5、 问题:Alternating current(交流电) as a source of power has certain advantages over direct current(直流电). 前后两个下划线介词短语分别充当_
选项:
A:状语……状语
B:定语……定语
C:补语……定语
D:补语……状语
答案: 【状语……状语

6、 问题:_ further increasing quantum-well(量子阱) number, the increase of the emission energy(发射能量) becomes slow.
选项:
A:For
B:With
C:In
D:By
答案: 【With

7、 问题:A simple approach _ expressing a function(函数) is shown _ Fig. 4-1.
选项:
A:of……by
B:of……in
C:to……by
D:to……in
答案: 【to……in

8、 问题:_ this case the velocity of an object varies linearly (线性地) __ the time.
选项:
A:In……with
B:In……at
C:Under……with
D:Under……at
答案: 【In……with

9、 问题:We can easily see from the definition (定义) of k _ the ratio of a force _ a length that the unit of elastic potential energy (弹性势能) is the same as the unit of work (功) .
选项:
A:by……with
B:by……to
C:as……with
D:as……to
答案: 【as……to

10、 问题:The two balls move _ the opposite directions _ the same stress(应力).
选项:
A:in……on
B:in……under
C:to……under
D:toward……at
答案: 【in……under

11、 问题:There is a great demand _ these devices. (填入一个恰当的介词,使句意通顺。)
答案: 【for

12、 问题:_ analogy(类比) with Eq. (4), we have the scale factor(比例系数).(填入一个恰当的介词,使句意通顺。)
答案: 【By

13、 问题:_ being compressed(压缩), the volume of a substance will be reduced. (填入一个恰当的介词,使句意通顺。)
答案: 【(以下答案任选其一都对)On;
Upon

14、 问题:_ more details on numerical techniques(数值方法) refer to Ref. [6-9]. (填入一个恰当的介词,使句意通顺。)
答案: 【For

15、 问题:These results have to be interpreted _ caution(谨慎). (填入一个恰当的介词,使句意通顺。)
答案: 【with

第六周 动词非谓语形式(I)动词不定式 单元测验六

1、 问题:It is our purpose in this section to introduce the basic meaning of the solution of a differential equation. 下划线部分在句中作 。
选项:
A:主语
B:宾语
C:状语
D:定语
答案: 【主语

2、 问题:To help visualize what is meant by a gravitational field we may use lines of force. 下划线部分在句中作 。
选项:
A: 主语
B:宾语
C:状语
D:定语
答案: 【状语

3、 问题:To make it easier for us to take derivatives, we shall square both sides of the expression. 下划线部分在句中作 。
选项:
A:主语
B:宾语
C:状语
D:定语
答案: 【宾语

4、 问题:We call the time to complete one cycle the period of the sinusoid. 下划线部分在句中作 。
选项:
A:主语
B:宾语
C:状语
D:定语
答案: 【定语

5、 问题:Solar cells enable the power from the sun.
选项:
A:to obtain
B:of obtaining
C:to be obtained
D:obtains
答案: 【to be obtained

6、 问题:The television camera scans the subject .
选项:
A: to transmit
B:to be transmitted
C:to transmitting
D:to transmission
答案: 【to be transmitted

7、 问题:Energy is the ability work.
选项:
A:of doing
B:in doing
C:to do
D:to be done
答案: 【to do

8、 问题:We must find a room .
选项:
A:which puts the instrument
B:which to put the instrument
C:to put the instrument in
D:to put the instrument for
答案: 【to put the instrument in

9、 问题:Elasticity may be defined as the tendency an object to return to its original state after being deformed.
选项:
A:in
B:of
C:for
D:by
答案: 【of

10、 问题:It is not apparent the appropriate mesh currents in such cases.
选项:
A: to place
B:to place where
C:where place
D:where to place
答案: 【where to place

11、 问题:These numbers are inconvenient . (write)
答案: 【to write

12、 问题:It to cascade these circuits to improve the gain. (require)

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