问题 填空题

(1)4月26日,全省最大的啤酒生产企业重啤集团盐城公司20万千升重啤项目正式投料生产。

①公司花园式的厂区里飘溢着阵阵麦芽香味。能闻到香味说明_________。

A.分子很小 B.分子间有间隔 C.分子在不断运动 D.分子可以分成原子

②啤酒酿造过程中,酵母是“魔术师”,能将麦芽汁转化为酒精和二氧化碳。该变化属于_______变化(选填“物理”或“化学”),酵母的作用是___________。

③啤酒酿造需要大量除去矿物盐的软水。实验室常用__________试剂区别软水和硬水。

④啤酒呈微酸性,过期的啤酒可用来浇灌喜酸花卉。测定啤酒的酸碱度可用____________。

⑤啤酒贮存和运输时要防止阳光暴晒,原因是_____________________。

(2)去年入秋以来,我市干旱少雨。在农业生产上,用0.1%的氯化钙溶液以1∶1浸种5~6小时后播种,可以提高种子在干旱条件下的出芽率。

①欲配制20kg0.1%的氯化钙溶液浸种,需要氯化钙__________kg。

②以工业碳酸钙(含有少量Na+、Al3+、Fe3+等杂质)生产氯化钙的主要流程如下。

碳酸钙与稀盐酸反应的化学方程式为_______________,向溶液B中加入稀盐酸的作用是__________。

答案

⑴①C;②化学;催化;③肥皂水;④pH试纸;⑤防止温度升高,气体溶解度减小,CO2气体溢出,使瓶内压强变大,导致瓶子爆裂

⑵①0.02;②CaCO3+2HCl=CaCl2+H2O+CO2↑;除去过剩的Ca(OH)2并转化为CaCl2

论述题
完形填空
Some years ago I was offered a writing assignment that would require three months of travel through Europe. I had been      abroad a couple of times, but I could hardly      claim to know my way around, the continent.     , my knowledge of foreign languages was      limited to a little college French.
I     . How would I, unable to speak the language,      familiar with local geography or transportation systems, conduct interviews and do
    research? It seemed impossible, and with considerable      I sat down to write a letter rejecting the     . Halfway through, a     
ran through my mind: you can't learn if you don't try. So I      the assignment.
There were some bad     . But by the time I finished the trip, I was an experienced traveler. And ever since, I have never hesitated to head for even the most      places, without guides or      advancebookings, confident that somehow I will     .
The point is that the new, the different, is almost by definition     . But each time you try something, you learn, and as the learning     , the world opens to you.
I've learned to ski at 40, and flown up the Rhine River in a(n)     . And I know I'll go on doing such things. It's not because I'm braver or more daring than others. I'm not. But I'll accept worry as another name for      and I believe I can      wonders.
小题1:
A.aboardB.abroad
C.awayD.out
小题2:
A.claimB.declare
C.hopeD.deny
小题3:
A.SomehowB.However
C.InsteadD.Moreover
小题4:
A.accustomedB.added
C.limitedD.suited
小题5:
A.resignedB.hesitated
C.trembledD.suspected
小题6:
A.only tooB.more than
C.apart fromD.far from
小题7:
A.operationsB.experiments
C.researchD.business
小题8:
A.regretB.doubt
C.terrorD.disappointment
小题9:
A.requestB.job
C.trustD.assignment
小题10:
A.reactionB.thought
C.meaningD.conflict
小题11:
A.accomplishedB.received
C.acceptedD.resisted
小题12:
A.exchangesB.conditions
C.tripsD.experiences
小题13:
A.remoteB.accessible
C.interestingD.crowded
小题14:
A.stillB.everC.evenD.yet
小题15:
A.doB.manageC.makeD.fit
小题16:
A.astonishingB.frightening
C.fascinatingD.exciting
小题17:
A.comes upB.shows up
C.piles upD.steps up
小题18:
A.airportB.motorboat
C.surfboardD.balloon
小题19:
A.goalB.opportunity
C.struggleD.challenge
小题20:
A.workB.own
C.winD.achieve