1.选择题- (共8题)
1.请从H、C、O、K中选择合适的元素,按下列要求写出化学式(各写一例):
①酸性氧化物{#blank#}1{#/blank#};②由三种元素组成的酸{#blank#}2{#/blank#};
③可溶于水的碱{#blank#}3{#/blank#};④由三种元素组成的盐{#blank#}4{#/blank#}.
2.请从H、C、O、K中选择合适的元素,按下列要求写出化学式(各写一例):
①酸性氧化物{#blank#}1{#/blank#};②由三种元素组成的酸{#blank#}2{#/blank#};
③可溶于水的碱{#blank#}3{#/blank#};④由三种元素组成的盐{#blank#}4{#/blank#}.
6.某补钙药剂的标签主要内容如图所示,现测定该钙片含量是否符合标注,做如下实验:取10片该钙片,放入干燥、洁净的烧杯中,再向烧杯中加入50g某浓度稀盐酸,恰好完全反应(钙片中其他成分不溶于水,也不和稀盐酸反应,反应中产生的气体全部放出),反应后称量烧杯内剩余物质的质量为64.5g.
7.某补钙药剂的标签主要内容如图所示,现测定该钙片含量是否符合标注,做如下实验:取10片该钙片,放入干燥、洁净的烧杯中,再向烧杯中加入50g某浓度稀盐酸,恰好完全反应(钙片中其他成分不溶于水,也不和稀盐酸反应,反应中产生的气体全部放出),反应后称量烧杯内剩余物质的质量为64.5g.
8.某补钙药剂的标签主要内容如图所示,现测定该钙片含量是否符合标注,做如下实验:取10片该钙片,放入干燥、洁净的烧杯中,再向烧杯中加入50g某浓度稀盐酸,恰好完全反应(钙片中其他成分不溶于水,也不和稀盐酸反应,反应中产生的气体全部放出),反应后称量烧杯内剩余物质的质量为64.5g.
2.单项选择- (共7题)
9.
—Hi, Tom. Any idea where Jane is?
—She_____in the classroom. I saw her there just now.
—She_____in the classroom. I saw her there just now.
A.shallbe | B.shouldhavebeen | C.mustbe | D.can be |
11.
---How do often you go to school?
---On foot_______it rains.
---On foot_______it rains.
A.except | B.except when | C.excetp that | D.besides |
12.
They didn’t find ________the medicine.
A.what’s the matter with | B.what was the matter with |
C.what the matter was with | D.what the matter is with |
13.
He asked me __________
A.how the weather would be like tomorrow |
B.what the weather would be like the next day |
C.how would the weather be like tomorrow |
D.what would the weather be like the next day |
14.
---I have tried very hard to find a way out of the trouble, but failed.
---why not ask Frank for help? You see______________.
---why not ask Frank for help? You see______________.
A.No pains, no gains |
B.It’s better to think twice before doing something |
C.Two heads are better than one |
D.A friend in need is a friend indeed |
试卷分析
-
【1】题量占比
选择题:(8道)
单项选择:(7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:6
7星难题:0
8星难题:1
9星难题:0