1.选择题- (共14题)
1.几种短周期元素的主要化合价及原子半径数据见下表:据表中信息判断,下列有关叙述中正确的是( )
元素代号 | L | M | Q | R | T |
主要化合价 | +2 | +3 | +6﹣2 | +7﹣1 | ﹣2 |
原子半径/nm | 0.160 | 0.143 | 0.102 | 0.099 | 0.074 |
5.一种含铝、锂、钴的新型电子材料,生产中产生的废料数量可观,废料中的铝以金属铝箔的形式存在;钴以钴以Co2O3•CoO的形式存在,吸附在铝箔的单面或双面,锂混杂于其中.从该废料中回收(CoO) 的工艺流程如图:
6. A、B、C、D、E是短周期的五种主族元素.A元素的某种原子,其核内没有中子;B元素的基态原子2p轨道上只有一对成对电子;C与B处于同一周期,且原子半径小于B;D与C是同主族元素;E元素的一价阳离子和C元素的阴离子具有相同的电子层结构.根据上述信息回答下列问题:
10.A元素的阳离子与B元素的阴离子具有相同的电子层结构,有关两元素的下列叙述:
①原子半径A<B;②离子半径A>B;③原子序数A>B;④原子最外层电子数A<B;⑤A 的正价与B的负价绝对值一定相等;⑥A的电负性小于B的电负性;⑦A的第一电离能大于B的第一电离能.其中正确的组合是( )
11.A元素的阳离子与B元素的阴离子具有相同的电子层结构,有关两元素的下列叙述:
①原子半径A<B;②离子半径A>B;③原子序数A>B;④原子最外层电子数A<B;⑤A 的正价与B的负价绝对值一定相等;⑥A的电负性小于B的电负性;⑦A的第一电离能大于B的第一电离能.其中正确的组合是( )
12.A元素的阳离子与B元素的阴离子具有相同的电子层结构,有关两元素的下列叙述:
①原子半径A<B;②离子半径A>B;③原子序数A>B;④原子最外层电子数A<B;⑤A 的正价与B的负价绝对值一定相等;⑥A的电负性小于B的电负性;⑦A的第一电离能大于B的第一电离能.其中正确的组合是( )
2.单项选择- (共13题)
15.
The unemployment figures this year are close to ___ of the year before last.
A.that | B.ones | C.one | D.those |
16.
That is ___ most moving play so that ___ most people like to see it.
A.a; a | B.the; the | C.the; / | D.a; / |
17.
The flower is dead. I ___ it more water.
A.will give | B.ought to give |
C.could have given | D.ought to have given |
18.
____, I had to buy a new one.
A.My dictionary losing | B.My dictionary having been lost |
C.Because my dictionary lost | D.My dictionary had been lost |
19.
I’m very happy ___ a chance ___ your school.
A.to give… to visit | B.giving… visiting |
C.to be given…to visit | D.to be given…visiting |
20.
The teacher frowned ___ annoyance when a student fell asleep during his lesson.
A.at | B.to | C.with | D.for |
21.
Sorry to have kept you waiting. You must have thought ___.
A.we are not coming | B.we were not coming |
C.we did not come | D.we were not come |
23.
Hearing the sound, the animal disappeared into the bushes, ___ Mrs. Stone picked up her bag and ran all the way home.
A.after that | B.after what | C.after which | D.after when |
24.
You should try to get a good night sleep____ much work you have to do.
A.however | B.whatever | C.no matter | D.although |
25.
It is well-known _____________ a person eats causes changes in the body.
A.what B. that what
B.what that D. that
A.what B. that what
B.what that D. that
26.
Nowhere else in such a small town, I think, ___ a book as good as this one.
A.can you get | B.does you get | C.was you get | D.you will get |
试卷分析
-
【1】题量占比
选择题:(14道)
单项选择:(13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:13
7星难题:0
8星难题:0
9星难题:0