1.选择题- (共9题)
3.实验室中有一铭牌上标有“20Ω 2A”字样的滑动变阻器，线柱连接到电路中去，“20Ω”指的是{#blank#}1{#/blank#}，“2A”指的是{#blank#}2{#/blank#}．
5.滑动变阻器是靠改变{#blank#}1{#/blank#}来改变电阻的，从而逐渐改变电路中的{#blank#}2{#/blank#}．通常在使用前应将电阻调到{#blank#}3{#/blank#}．
7.滑动变阻器是用{#blank#}1{#/blank#}较大的合金线制成的，这种合金线又叫电阻丝．改变电阻丝在电路中的{#blank#}2{#/blank#}，就可以逐渐改变连入电路的电阻大小，从而逐渐改变电路中的{#blank#}3{#/blank#}大小．
8.滑动变阻器是用{#blank#}1{#/blank#}较大的合金线制成的，这种合金线又叫电阻丝．改变电阻丝在电路中的{#blank#}2{#/blank#}，就可以逐渐改变连入电路的电阻大小，从而逐渐改变电路中的{#blank#}3{#/blank#}大小．
9.滑动变阻器是用{#blank#}1{#/blank#}较大的合金线制成的，这种合金线又叫电阻丝．改变电阻丝在电路中的{#blank#}2{#/blank#}，就可以逐渐改变连入电路的电阻大小，从而逐渐改变电路中的{#blank#}3{#/blank#}大小．
2.单项选择- (共13题)
10.
Cars do cause people some health problems, in fact far more serious _____ than computers do.
| A．one | B．ones | C．it | D．those |
11.
On seeing_____ gift they wanted, the kids screamed with _____ delight.
| A．/; a | B．a; the | C．the; / | D．the; a |
12.
— Nowadays people seem to be becoming more and more selfish.
— How much better life would be if we ______ to the values of the past!
— How much better life would be if we ______ to the values of the past!
| A．would return | B．had returned | C．return | D．were to return |
13.
— Who _____ be phoning us at this time of night?
— It might be your sister.
— It might be your sister.
| A．might | B．can | C．dare | D．must |
14.
I didn't realize my mother loves me so such until I received her gift for my 18th birthday, a diary______ the process of my growth．
| A．recorded | B．to record | C．recording | D．having recorded |
15.
More people are choosing to work _____ retirement age，since the living expenses are shooting up sharply.
| A．under | B．beyond | C．against | D．for |
16.
Tell your doctor with a detailed medical history ______ he can give you the accurate treatment.
| A．even if | B．so that | C．in case | D．as though |
17.
My wife ______the night shift when my plane ______. That’s why no one is to meet me at the airport today.
| A．is working; is arriving | B．was working; arrived |
| C．will have worked; has arrived | D．will be working; arrives |
18.
The Nobel Prize in literature has been awarded annually to an author from any country _________ has produced "in the field of literature the most outstanding work in an ideal direction".
| A．which | B．who | C．where | D．as |
19.
_____ the city’s public school system should be open to the children of migrant workers has become the focus of discussion.
A．That B. What C. Whether D. If
A．That B. What C. Whether D. If
20.
So absorbed _____ in the experiment that he didn’t even notice it was already over 12 o’clock.
| A．did he | B．he did | C．was he | D．he was |
21.
— You have helped me a lot. I can’t thank you enough.
—______.
—______.
| A．Be my guest. | B．That’s right. | C．I don’t think so. | D．Think nothing of it. |
试卷分析
-
【1】题量占比
选择题:(9道)
单项选择:(13道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：13
7星难题：0
8星难题：0
9星难题：0