1.选择题- (共8题)
1.
右图中有6个编号,每个编号代表下列物质中的一种物质,凡用直线连接的相邻两种物质均能发生化学反应,供填写的物质有
a、AgNO3溶液 b、MgSO4溶液 c、BaCl2溶液 d、H2SO4溶液 e、Fe f、Cu(NO3)2溶液
则图中①表示的物质的编号是( )
4.如图,相连的两种在一定条件下可以发生化学反应.下列选项中,符合该图要求的是( )
a | b | c | d | e | |
A | S | O2 | CO | H2O | CO2 |
B | H2 | O2 | Cu | 稀盐酸 | CaCO3 |
C | CuSO4 | Mg | 稀盐酸 | Zn | NaCl |
D | Al | O2 | C | CuO | H2 |
5.下表所列各组物质中,物质之间通过一步反应不能实现如图所示转化的是( )
编 号 | 甲 | 乙 | 丙 | 丁 |
A | Cu | CuO | CuSO4 | Cu(NO3)2 |
B | Na2CO3 | NaOH | NaHCO3 | CO2 |
C | CaCO3 | CaO | CaCl2 | Ca(NO3)2 |
D | C | CO | CO2 | K2CO3 |
2.单项选择- (共12题)
10.
Something terrible _________ if he didn’t come to the bar as he always did.
A.should happen | B.might happen |
C.must have happened | D.can have happened |
11.
If I _______ that program the day before yesterday, my computer wouldn’t have broken down.
A.didn’t run | B.haven’t run | C.hadn’t run | D.were not to run |
12.
All the books donated by the students from urban schools are said ______ to the students in rural areas the other day.
A.to be sent | B.being sent | C.having been sent | D.to have been sent |
13.
– Listen! It’s raining.
-- Oh, really? I ________ it at all.
-- Oh, really? I ________ it at all.
A.didn’t realize | B.don’t realize | C.haven’t realized | D.hadn’t realized |
14.
I ________ a topic for the composition, but haven’t decided yet.
A.will think about | B.have been thinking about |
C.had thought about | D.was thought about |
15.
Mr. Brown ______ his office an hour ago and he is still on his way home.
A.left | B.leaves | C.is leaving | D.was leaving |
16.
_________ you may have, you should gather your courage to face the challenge.
A.Whatever serious a problem | B.However serious a problem |
C.However a serious problem | D.No matter how a serious problem |
17.
Faced with difficulties, you should believe your confidence is _______ makes a difference.
A.what | B.that | C.which | D.whether |
18.
It is the second time that he has won the race, _______ has surprised us all.
A.which | B.where | C.what | D.that |
19.
When asked______ they needed most, the kids said they wanted to feel important and loved.
A.whether | B.that | C.what | D.why |
试卷分析
-
【1】题量占比
选择题:(8道)
单项选择:(12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:12
7星难题:0
8星难题:0
9星难题:0