1.选择题- (共9题)
6.
在一个密闭容器中有四种物质,在一定条件下充分反应后,测得反应前后各物质的质量如下:
物质 | X | Y | Z | Q |
反应前质量/g | 4 | 10 | 1 | 21 |
反应后质量/g | 0 | 12 | 15 | 待测 |
已知x的相对分子质量为n,Q的相对分子质量为2n,则下列推断正确的是( )
7.
在一个密闭容器中有四种物质,在一定条件下充分反应后,测得反应前后各物质的质量如下:
物质 | X | Y | Z | Q |
反应前质量/g | 4 | 10 | 1 | 21 |
反应后质量/g | 0 | 12 | 15 | 待测 |
已知x的相对分子质量为n,Q的相对分子质量为2n,则下列推断正确的是( )
8.
在一个密闭容器中有四种物质,在一定条件下充分反应后,测得反应前后各物质的质量如下:
物质 | X | Y | Z | Q |
反应前质量/g | 4 | 10 | 1 | 21 |
反应后质量/g | 0 | 12 | 15 | 待测 |
已知x的相对分子质量为n,Q的相对分子质量为2n,则下列推断正确的是( )
9.
大棚内栽种作物,为了增产,在增强光照的同时,农民常向大棚内施放“气肥”,这样可增强植物的{#blank#}1{#/blank#}作用.夜晚农民常把塑料大棚掀开一个小角,使冷空气进入以降低室温,其目的是减弱植物的{#blank#}2{#/blank#}作用,利于有机物的积累.
2.单项选择- (共10题)
10.
- A lovely day, isn’t it?
-- Yes. I love when the weather is like this. Why not have our lunch outside?

-- Yes. I love when the weather is like this. Why not have our lunch outside?

A.this | B.it | C.one | D.That |
11.
—You’ve dropped_______ “s” in the word “acros”.
—Oh, ______letter “s” should be doubled like this “across”.
—Oh, ______letter “s” should be doubled like this “across”.
A.a ; a | B.an ; a | C.an ; the | D.the ; the |
12.
My mother _______ a bed in the sitting-room for my cousins from the countryside.
A.brought up | B.took up | C.made up | D.put up |
13.
He found himself by a crowd of excited people and to escape.
A.surrounded; trying | B.surrounding; trying |
C.surrounding; tried | D.surrounded; tried |
14.
—I really hope we can see Zhou Xun in Hangzhou this time.
—Maybe, if we are______.
—Maybe, if we are______.
A.enough lucky | B.lucky enough | C.luckily enough | D.enough luckily |
16.
The latest UK official studies show _______fewer teenagers are now studying foreign languages.
A.what | B.which | C.that | D.Whether |
17.
Only after Helen moved to Australia ______ how important she was to me .
A.I had realized | B.had I realized | C.I did realize | D.did I realize |
18.
—Thank you for your MP4 player. I’ll ask Mary to take it to you soon.
—______. I’ve bought a new one.
—______. I’ve bought a new one.
A.No sense | B.No hurry | C.No way | D.No use |
试卷分析
-
【1】题量占比
选择题:(9道)
单项选择:(10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:10
7星难题:0
8星难题:0
9星难题:0