1.选择题- (共9题)
1.
小华为帮助爸爸搬运装修材料设计了如图所示的甲、乙两种方案,小华采用相同的滑轮组按不同的搬运方案,分别将地面上质量相同的材料匀速运送到二楼,所用拉力分别为F甲、F乙,它们的机械效率分别为η甲、η乙,则下列关系正确的是(不计绳重与摩擦)()
5.
如图所示,将凸透镜看作是眼睛的晶状体,光屏看作是眼睛的视网膜,烛焰看作是眼睛观察的物体。拿一个近视眼镜给“眼睛”戴上,光屏上出现烛焰清晰的像,而拿走近视眼镜则烛焰的像变得模糊,那么在拿走近视眼镜后,下列操作能使光屏上重新得到清晰像的是()
6.
如图所示,将凸透镜看作是眼睛的晶状体,光屏看作是眼睛的视网膜,烛焰看作是眼睛观察的物体。拿一个近视眼镜给“眼睛”戴上,光屏上出现烛焰清晰的像,而拿走近视眼镜则烛焰的像变得模糊,那么在拿走近视眼镜后,下列操作能使光屏上重新得到清晰像的是()
2.单项选择- (共8题)
10.
In the sentence “ she rose to her feet in one swift movement ”, what does “swift” mean?
A.short | B.quick | C.immediate | D.hurry |
11.
The rainy weather helped me ____, which gave me a good excuse to get out of their party.
A.on the way | B.in the way | C.in a way | D.by the way |
12.
He failed in the exam ____ his carelessness.
A.as a result of | B.as result | C.result from | D.result in |
13.
I should like to buy a house, modern, comfortable, and ______ , in a quiet place.
A.first of all | B.after all | C.in all | D.above all |
试卷分析
-
【1】题量占比
选择题:(9道)
单项选择:(8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:7
7星难题:0
8星难题:1
9星难题:0