1.选择题- (共13题)
3.如图所示的电路中，灯L标有“3V 0.9W”、滑动变阻器R上标有“30Ω 1A”的字样，电压表量程为0～3V，则灯L正常工作时的电流为{#blank#}1{#/blank#} A．若电源电压为4.5V，为了保证电路中各元件安全工作，滑动变阻器连入电路中的阻值范围是{#blank#}2{#/blank#}．
4.如图所示的电路中，灯L标有“3V 0.9W”、滑动变阻器R上标有“30Ω 1A”的字样，电压表量程为0～3V，则灯L正常工作时的电流为{#blank#}1{#/blank#} A．若电源电压为4.5V，为了保证电路中各元件安全工作，滑动变阻器连入电路中的阻值范围是{#blank#}2{#/blank#}．
6.透明玻璃杯中装有三种液体和四个实心固体，静止时如图所示，它们的密度如下表所示．其中固体C和液体2分别是：（ ）
实验物品 | 密度ρ（kg/cm3） |
壹元硬币 | 7.2 |
橡皮 | 1.3 |
塑料 | 0.9 |
泡沫 | 0．l |
蜂蜜 | 2.0 |
水 | 1.0 |
菜油 | 0.8 |
7.小明用同一滑轮组分别将甲、乙两组钩码提升相同的高度，如图所示．他两次提升钩码所用的拉力分别为F甲和F乙，则F甲{#blank#}1{#/blank#} F乙；所做的有用功分别为W甲和W乙，机械效率分别为η甲和η乙，则W甲{#blank#}2{#/blank#} W乙，η甲{#blank#}3{#/blank#}η乙．（均选填“＞”、“=”或“＜”）
8.小明用同一滑轮组分别将甲、乙两组钩码提升相同的高度，如图所示．他两次提升钩码所用的拉力分别为F甲和F乙，则F甲{#blank#}1{#/blank#} F乙；所做的有用功分别为W甲和W乙，机械效率分别为η甲和η乙，则W甲{#blank#}2{#/blank#} W乙，η甲{#blank#}3{#/blank#}η乙．（均选填“＞”、“=”或“＜”）
12.核电站将{#blank#}1{#/blank#}能最终转化为电能，它常建在海边，其原因之一是需要大量的水作为汽轮机的冷却剂，这利用了水的{#blank#}2{#/blank#}较大．福清核电站一台发电功率为l06kW的核电机组将于2013年开始发电，它每天能发电{#blank#}3{#/blank#} kW•h，这相当于每天至少可减少火电用煤{#blank#}4{#/blank#}吨，这样会减少大量的二氧化碳等气体和灰渣的排放，减轻“北煤南运”的压力．（煤的热值q=3.4×107J/kg）
2.单项选择- (共12题)
14.
Of all ___ reasons for my decision to go abroad, my father’s advice was ___ very important one.
| A．the; / | B．the; the | C．/; the | D．the; a |
15.
Your desk is covered with too many unnecessary things, including used papers and books. You’d better ________ some of them.
| A．remain | B．replace | C．remove | D．renew |
16.
All the students in this school are required to ________ at least two lectures on how to study every month.
| A．attend | B．take part in | C．join in | D．join |
17.
Mr. Reed made up his mind to devote all he had to _____ some schools for the disabled children.
| A．set up | B．setting up | C．have set up | D．having set up |
18.
Mike was our ________ customer, who used to shop here on Sundays.
| A．regular | B．legal | C．normal | D．informal |
19.
On arrival at the flood-stricken village, the PLA soldiers set ______ rescuing the villagers.
| A．for | B．out | C．about | D．off |
20.
—Would you like to go to the cinema with me tomorrow afternoon?
—I’d like to, Mum, but I ________ to a party by Jane. It is her birthday.
—I’d like to, Mum, but I ________ to a party by Jane. It is her birthday.
| A．am invited | B．was invited | C．will be invited | D．have been invited |
21.
Only when _____ in the afternoon _____ able to leave.
| A．the match was over; they were |
| B．was the match over; were they |
| C．was the match over; they were |
| D．the match was over; were they |
22.
Is it in this room in _____ the great writer once lived ____ he finished his last works?
| A．which; that | B．that, where | C．that; which | D．where; that |
23.
We are living in an age ______ many things are done on computer.
| A．which | B．that | C．where | D．when |
24.
He gave us another piece of advice, ________ of great help to the research work.
| A．which I think is | B．which I think it is |
| C．I think which is | D．I think it is |
试卷分析
-
【1】题量占比
选择题:(13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：1
5星难题：0
6星难题：7
7星难题：0
8星难题：4
9星难题：0