The drinking water is contaminated with impurities.A:blackened B:polluted C:darkened D:mixed
The drinking water is contaminated with impurities.
A:blackened
B:polluted
C:darkened
D:mixed
B:polluted
C:darkened
D:mixed
参考解析
解析：本句意思：饮用水被杂质污染了。contaminate意为“弄脏，污染”，与pollute（污染）意思相近。blacken使变黑；darken使变暗；mix混合。
相关考题：
The () workers' attention is now turning towards the recovery of bodies from the rubble and providing food, shelter and drinking water for the survivors. A.routeB.in totalC.rather thanD.rescue
I really am not qualified to ()the safety or lack of safety in drinking this water.A、valuateB、measureC、evaluateD、vaulte
When the water produced from most evaporator is supplied for drinking purpose, it must be treated to ensure it is biologically pure and _____.A.slightly acidicB.slightly alkalineC.no saltyD.slightly bitter
What represents poor sanitary procedures ________．A.Keep and use a separate filling hose for potable（drinking）waterB.Locate potable（drinking）water tanks as low as possible in the bilgeC.Eliminate enclosed spaces in which trash，food particles，dirt may gatherD.After washing dishes with soap and warm water，sterilize them in water of at least 170℉（76.7℃）
共用题干Some doctors think that you should drink a glass of water each morning. You should drink water before doing anything else.The temperature of the water should be similar to body temperature:not hot,not cold.Why should you drink this water?______(46).It helps clean out your kidneys.It prepares your stomach for digestion.______(47).After drinking water,the intestines can more easily take out nutrients from our food. And water helps us go to the bathroom more easily.Scientists suggest that people take in 1,600 milliliters of water each day.______(48).If you do,your kidneys will have to work much harder to eliminate it. It's better to drink some in morning and some in afternoon.______(49).And during meals,they think water dilutes the juices produced in our stomachs.This can interfere with normal digestion.Are you drinking enough water every day?Check the color of your urine.______(50).if your urine is very dark yellow,your probably need to drink more water. A little water each day could make you much healthier._________（47）A:If it is light yellow,you are probably drinking enoughB:Water can also help your intestines work betterC:Some people think it's better to drink between mealsD:Water helps your body in many waysE:But don't drink all of that water in one sitting F: Water is an essential element of life
共用题干WaterEarth is like a big blue marble.From high above the Earth and from the moon,the planet gleams and shines.The blue water in the oceans and seas of the Earth makes a dramatic image.The white clouds above the Earth add beauty to the picture.Water is the source of this beauty and the source of life on Earth.It is the reason people can live on this planet. Water is everywhere.(46)_______.It is in the soil,the ground that grows the food.Water is in rock deep under the ground, in natural holding areas一in storage.In a real sense,water keeps Earth alive.Nature has an unchanging amount of water. Nature has a perfect system for recycling water. (47)_____.It falls as rain.Then it goes to one of three places.It might sink slowly through the soil into the natural holding areas in the rock.(48)_______一by becoming vapor,or gas.It might run off into streams,rivers and oceans.By itself,nature can keep the balance and provide plenty of clean water for us.Nature recycles water.However,people cause problems for this natural recycling system.Nature's recycling system can work well(49)________.Some ways that people upset nature are easy to understand.For example, dirty sewage（污水沟系统）water from homes and factories must not mix with drinking water. People get sick from drinking contaminated water. Sometimes water from factories goes into streams and rivers.It enters into the groundwater. It can flow into lakes too.This kind of contamination from industry(waste water from factories) can be dangerous for people.If water contains poisons and chemicals,it is poison.(50)________;some poisons kill people as well as birds and animals.Without knowing,people can upset nature's recycling system.Lakes and rivers add beauty to the world. People enjoy water for entertainment purposes,too. People enjoy swimming and playing in the cool water of a lake in the summer. They like to ride on boats on rivers.Many people enjoy catching fish in the rivers.They fish for food and for sport.However,in some places,the water of the lakes and rivers is no longer safe.These rivers and lakes are contaminated.The fish are dying because of the chemicals from farms and factories.People cannot swim in the polluted water._________（49）A:Poison makes people sickB:It is in the air that people breatheC:We can not live without waterD:Water is used again and againE:only if people work with the system and not against it F: It might disappear into the air quickly
A.lot of people could fall ill after drinking contaminated water.A:muddled B:polluted C:mixed D:troubled
A lot of people could fall ill after drinking contaminated water.A:muddled B:polluted C:mixed D:troubled
饮用水注入管（）A、fresh water filling pipeB、bilge water filling pipeC、drinking water filling pipeD、sea water filling pipe
单选题Why do some people get sick after drinking the water from the river?ABecause the river is pollutedBBecause the river makes the earth more beautifulCBecause the river can only offer water to animalsDBecause there are too many animals and plants in the river
单选题（） is used for washing and drinking.AThe ballast systemBThe salt water systemCThe bilge systemDThe domestic system
单选题Drinking salt water will（）.Abe safe if mixed with fresh waterBprevent seasicknessCdehydrate youDprotect against heat cramps
单选题Which statement concerning the collection of fresh water is FALSE?（）AFresh water may be obtained from fishBlifeboat covers or canopies should be washed with rain before drinking water is collectedCFresh water may be collected from condensation inside the life-raftDFreshwater cannot be produced from standing seawater
单选题When the water produced from most evaporator is supplied for drinking purpose, it must be treated to ensure it is biologically pure and （）.Aslightly acidicBslightly alkalineCno saltyDslightly bitter
单选题Because the flow rate of supply water pump is too large, oily water separator does not work wellWhich of the following is not the reason?（）Athe monitoring equipment is out of orderBseparating effect becomes badCinner wall is contaminatedDseparating effect becomes bad and inner wall is contaminated
单选题Diesel engine lube oil can become contaminated as a result（）Athe water produced during combustionBthe sulfur in the fuelCunburned fuel oilDall of the above
单选题During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?（）Afailure of the proper operation of the main steering gearBfailure of the proper operation of electrical installationsCleakage of domestic water pumpDinsulation of exhaust pipes in engine room contaminated by oil
单选题During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?（）Aexcess amount of oily-water mixtures in bilgesBinsulation of piping including exhaust pipes in engine room contaminated by oilCimproper operation of bilge pumping arrangementsDthere were an actual emergency
单选题（）are used to ensure that ships don’t discharge oil when pumping out oily water from any oil contaminated space.ABoilerBIncineratorCOily water separatorDSewage treatment unit
单选题ATo protect environment.BTo cool buildings.CTo change the climates.DTo provide drinking water.
单选题Seawater may be used for drinking water （）.Aat a maximum rate of two ounces per dayBafter mixing with an equal quantity of fresh waterCif gather during or immediately after a hard rainDunder no circumstance
单选题Seawater may be used for drinking（）.Aunder no conditionsBat a maximum rate of two ounces per dayCif gathered during or immediately after a hard rainDafter mixing with an equal quantity of fresh water
单选题Which statement concerning the collection of fresh water is FALSE?（）AFresh water may be obtained from fishBLifeboat covers or canopies should be washed with rain before drinking water is collectedCFresh water may be collected from condensation inside the liferaftDSeawater should never be consumed
单选题According to Ban the Bottle, drinking bottled water costs _____dollars per year.A8B20C49D1400