
【名词&注释】
电压表(voltmeter)、电流表(ammeter)、硝酸钾(potassium nitrate)、氯化钠(sodium chloride)、水溶液(aqueous solution)、滑动变阻器(slide rheostat)、理化生实验、溶解度变化(dissolving variation)、堂兄弟(cousin)
[单选题]下列关于溶液的说法,不正确的是( )
A. 冷却或加入硝酸钾固体都能使接近饱和的硝酸钾溶液达到饱和
B. 汗水浸湿的衣服晾干后出现白色斑迹,是因为水分蒸发后盐分结晶析出
C. 氨水是氨气的水溶液,根据气体溶解度变化(dissolving variation)规律,贮存时要阴凉密封
D. 氯化钠在20℃时溶解度是36g,则100g的氯化钠溶液中含有氯化钠36g
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举一反三:
[单选题]Henry is a little fatter than he wants to be. He ( 1 ) to lose some weight. So he is on diet. He tries not to eat to0 ( 2 ) and he eats very little sugar because it will make him ( 3 ) . He also does exercise every ( 4 ) .' He swims very often,( 5 ) he runs about two kilometers a day.Now he is ( 6 ) than before. Henry's sister,Susan,is healthier than Henry. ( 7 ) is also younger and thinner than he is. She does ( 8 ) every day,too. She doesn’t ( 9 ) much meat. But she eats a lot of fruit and vegetables because she thinks ( 10 ) are better for her health.( )1.
A. wants
B. thinks
C. asks
D. likes
[单选题]在今年理化生实验技能测试中,实验室准备的器材有:电源、电压表、电流表、滑动变阻器、开关、待测电阻及导线若干。在做测电阻的实验时,小明在连接电路过程中,由于疏忽,把电压表和电流表的位置给颠倒了,其它连接正确无误.这个电路闭合开关后所产生的现象是
A. 电流表有读数,电压表的读数几乎为零 B.电压表将被烧坏
B. 电压表有读数,电流表的读数几乎为零 D.电流表将被烧坏
[单选题]39. What does Lucy want to buy?
A. Some picture books
B. Some color pencils
C. Something to eat
D. A, B and C
[单选题](A)TheWaterWorldSwimmingPoolisopeneverydayfromeighto’clockinthemorninguntilhalfpastsevenintheevening.Itcoststwodollarssixtytoenterthepool.Thereisaspecial
A. cheappriceforstudentswithastudentcard.Thepriceisonedollarforty.Butyoumustbringyourstudentcardwith
B. you.
C. OnWednesdaymorningthepoolisonlyopentomothersandbabies.Somotherscanenjoythemselvesinthewater
D. withtheirbabies.PleaseleaveyourolderchildrenathomeonWednesdaymorning.
E. ThenewWaterWorldCaféwillbeopenuponJune22nd.Fromthecaféyoucanwatchtheswimmersorenjoyadrink
F. afteryouswim.
G. Pleasecall2105369formoreinformation.WelookforwardtoseeingyouattheWaterWorldSwimmingPool.
H. 46.HowlongistheWaterWorldSwimmingPoolopeneveryday?
I. Elevenhours.
J. Sevenhours.
K. Elevenandahalfhours.
L. Sevenandahalfhours.
[单选题]15.
A. brother
B. uncle
C. cousin
D. son
[单选题]Themassageismainlyabout_________.
A. stepsofstudyingscience
B. difficultiesinreadingscience
C. waysofreadingsciencepassages
D. researchesonscienceandEnglish
[单选题]25. Where is the nurse-s house?
A. Behind Mike's.
B. Beside Jack's.
C. Beside Mike's.
D. Under Jack's.
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