1.选择题- (共14题)
3.如图，正三棱柱ABC﹣A1B1C1的各棱长均相等，D为AA1的中点，M，N分别是线段BB1和线段CC1上的动点（含端点），且满足BM=C1N，当M，N运动时，下列结论中正确的序号为{#blank#}1{#/blank#}．
①△DMN可能是直角三角形；②三棱锥A1﹣DMN的体积为定值；③平面DMN⊥平面BCC1B1；④平面DMN与平面ABC所成的锐二面角范围为（0， {#mathml#}{#/mathml#} ]．
5.如图，PA⊥平面ABC，AC⊥BC，PA=AC=1，BC= {#mathml#}{#/mathml#} ，则二面角A﹣PB﹣C的余弦值大小为{#blank#}1{#/blank#}．
13.已知四边形ABCD为平行四边形，BC⊥平面ABE，AE⊥BE，BE=BC=1，AE= {#mathml#}{#/mathml#} ，M为线段AB的中点，N为线段DE的中点，P为线段AE的中点．
14.已知四边形ABCD为平行四边形，BC⊥平面ABE，AE⊥BE，BE=BC=1，AE= {#mathml#}{#/mathml#} ，M为线段AB的中点，N为线段DE的中点，P为线段AE的中点．
2.单项选择- (共13题)
15.
Global warming is a big _______ for all and it’s important to raise awareness about climate change.
| A．reward | B．concern | C．evolution | D．boom |
16.
There are many choices to make in life but _______ is more important than what goes on in your heart.
| A．nothing | B．neither | C．none | D．no one |
17.
Shy as he would be in _______ public, he is getting more confident in making _______ public speech.
A. /; a B. /; the C. a; the D. the; a
A. /; a B. /; the C. a; the D. the; a
18.
— Is John coming over this weekend?
— He should, but he _______ not. He seems to be busy these days.
— He should, but he _______ not. He seems to be busy these days.
| A．can | B．may | C．must | D．will |
19.
— You _______ for me this morning. I came over here with Michael in his car.
— Well, why didn’t you let me know earlier?
— Well, why didn’t you let me know earlier?
| A．should have waited | B．would have waited |
| C．couldn’t have waited | D．needn’t have waited |
20.
A Chinese low-budget film, Lost in Thailand, has _______ profits and praise since it hit movie theaters on 12 December.
| A．produced | B．split | C．increased | D．harvested |
21.
The manager is always very _______ for appointments, which earns him a good reputation.
| A．punctual | B．numb | C．allergic | D．content |
22.
Anne Hathaway, a hottest actress, _______ in so many embarrassing situations over the years.
| A．is | B．was | C．will be | D．has been |
23.
Sorry for my being so late, but you couldn’t figure out _______ great difficulty I had finding the right way here.
| A．which | B．how | C．what | D．so |
24.
When I am down, my parents will do what every parent will do, _______ is to hug me tighter and tell me I am the best.
| A．which | B．what | C．that | D．who |
25.
_______ this sentence a second time, the meaning will become clear to you.
| A．If reading | B．When you read | C．Reading | D．Read |
26.
It was with great joy _______ he worked out the problem that he had long been puzzled about.
| A．which | B．that | C．because | D．since |
试卷分析
-
【1】题量占比
选择题:(14道)
单项选择:(13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：9
7星难题：0
8星难题：4
9星难题：0