1.选择题- (共7题)
3. {#blank#}1{#/blank#}、{#blank#}2{#/blank#}、{#blank#}3{#/blank#}三色光混合能产生各种色彩.人们把这三种色光叫做{#blank#}4{#/blank#}.小华的调色板上如果有{#blank#}5{#/blank#}、{#blank#}6{#/blank#}、{#blank#}7{#/blank#} 三种颜色的颜料,他也能通过颜料混合画出各种色彩的图画,这说明色光的混合规律跟颜料的混合规律是{#blank#}8{#/blank#}.
6.电视机画面的颜色是由{#blank#}1{#/blank#}三种色条合成;电视机遥控器可以发出不同的{#blank#}2{#/blank#}(选填“红外线”“紫外线”),来实现电视机的遥控;适当的{#blank#}3{#/blank#}(选填“红外线”或“紫外线”)照射有助于人体合成维生素D.
7.色光的三原色是{#blank#}1{#/blank#}、{#blank#}2{#/blank#}、{#blank#}3{#/blank#}三种颜色,颜料的三原色是{#blank#}4{#/blank#}、{#blank#}5{#/blank#}、{#blank#}6{#/blank#}三种颜色.各种色光等比例混合是{#blank#}7{#/blank#}色,各种颜料等比例混合是{#blank#}8{#/blank#}色.
2.单项选择- (共9题)
8.
Obama made _______ history by being elected as ________ first black president of the US.
A.不填;the | B.a; the | C.a; a | D.the; a |
9.
With the second ring road overpass _______ at present in Chengdu, the local citizens have to choose another way to avoid traffic jam.
A.being constructed | B.to construct |
C.to be constructed | D.to be constructed |
10.
She said she was sorry ________ the train, so she had to stay for another day.
A.missing | B.having missed | C.to miss | D.to have missed |
11.
--How was your weekend, Rose?
--Awful! This was the first time I ________ alone at home, bored to death.
--Awful! This was the first time I ________ alone at home, bored to death.
A.had left | B.had been left | C.have been left | D.have been leaving |
12.
I don’t think she noticed the headmaster just at that moment, for she _______ the game on her cellphone.
A.played | B.was playing |
C.is playing | D.has been playing |
13.
Britain’s first and only female prime minister , Margaret Thatcher, died on April 8 at the age of 87, after suffering a stroke (中风), _______ has aroused a flood of comments about her political life again.
A.which | B.what | C.it | D.that |
14.
I don’t know the reason _______ you were absent from the meeting, and I am not sure that someone will tell me the reason _______ you haven’t told me.
A.why; that | B.that; why | C.because; why | D.of which; that |
15.
Thousands of people lined up to lay flowers in front of a 28-story high-rise in Shanghai, _______a terrible fire killed at least 58 people.
A.when | B.where | C.which | D.what |
试卷分析
-
【1】题量占比
选择题:(7道)
单项选择:(9道)
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【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:5
7星难题:0
8星难题:4
9星难题:0