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A huge lake of salty water appears to be...

A huge lake of salty water appears to be buried deep in Marsscientists reported this weekThe presence of water raises the chances of finding life on the red planetThe discovery is based on observations by a European spacecraftIt has excited expertsWater is necessary for lifeand scientists have long hoped to prove that it is present on Mars

Cassie Stuurman is a geophysicist at the University of TexasIn 2016she found evidence of a huge ice deposit(沉积)on Mars“If these researchers are rightthis is the first time we’ve found evidence of a large water body on Mars”Stuurman saidResearchers are not yet sure how deep the area of water isSothey cannot say whether it is an underground poolor just an area of soft and wet soil

In order to find the waterItalian researchers examined radar signalsThe signals were collected over three years by the European Space Agency’s Mars Express spacecraftThe results suggest that a 20-kilometer-wide water body lies below ice that is 1.5 kilometers thickThey believe the area is close to the planet’s southern pole

Mars is very coldbut salt in the water may have kept it from freezingIt is the same as when you put salt on a road to prevent ice from formingThe water would be extremely coldright at the point where it’s about to freezeAnd it would be saltySuch conditions are not ideal for life to formButshe said there are bacteria on the earth that have been able to survive in similar conditions

Mars has been a popular planet for explorationwith some groups placing instruments on its surface and others examining it from spaceIn MayNASA launched another spacecraftthe InSight Mars lander which will dig deep into the data under the surface after it reaches a flat area of the planet in November

1.Where do the Italian researchers believe the water body on Mars is?

A. In a poo1

B. Above ice

C. In soft and wet soil

D. Near the southern pole of Mars

2.What can we learn about the water on Mars from the text?

A. It is probably filled with creatures

B. It flows on the surface of Mars

C. It is mainly in the form of solid

D. It is probably at the freezing point

3.What will the InSight Mars lander do when it reaches Mars?

A. Dig a hole to protect the lander itself

B. Explore the surface of Mars

C. Gather information under the surface of Mars

D. Examine Mars from space

4.What is the main idea of the text?

A. Life used to exist on Mars

B. Researchers find new species on Mars

C. Mars will be the humans’second home

D. Water is buried beneath Mars’surface

 

1. D 2. D 3. C 4. D 【解析】 本文是一篇说明文,介绍了科学家发现火星深处可能埋藏着一个巨大的咸水湖。 1.细节理解题。根据第三段中的“They believe the area is close to the planet’s southern pole.”可知,意大利科学家认为水体位于火星的南极,故D项正确。 2.细节理解题。根据第四段中的“The water would be extremely cold,right at the point where it’s about to freeze.”可知,火星上的水很冷,可能在快要结冰的状态,故D项正确。 3.细节理解题。根据最后一段中的“the InSight Mars lander which will dig deep into the data under the surface after it reaches a flat area of the planet in November.”可知,InSight火星探测器到达火星后会进行挖掘以收集火星地表以下的数据,故C项正确。 4.主旨大意题。通读全文,特别是根据第一段中的“A huge lake of salty water appears to be buried deep in Mars,scientists reported this week.”可知,本文主要介绍了科学家认为火星深处可能埋藏着一个巨大的咸水湖,故D项正确。
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I live in the center of the city and there is a large parking lot full of parking spots nearbyRain is a rare occurrence in LAso cars easily collect pollutants and dustTogether with my friendsI decided it should be a kind gesture to surprise the owners with a car washSo we bought car washing supplies and brought out all the bath towels we could findWith all the supplies in handwe were able to convince another roommate to help out as well and we began watering down the cars

Every once in a whilesomeone would come by and asked us seemingly stupid men“Who told you to wash the cars?”oreven better“who paid you to wash their cars?”We explained we just wanted to do something kindBut our response was often me with an even more confused look

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I wasn't cleaning cars to be able to afford a new phoneI was cleaning cars simply because I wanted to offer the car owners kindnessThere was no equipment to weigh our value createdWe couldn’t measure our success in dollars earned over the time spent washing cars when we could have been earning twice as much at work

I now realizefirst handthat there is a special energy created when you choose to think bigger than yourself and act in service of others and maybelike meyou’11 find it’s actually the greatest gift you’ you’ll ever get

1.What attitude did passers-by show towards the author’s behavior?

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2.Why did the author decide to wash the cars?

A. To earn money to buy a phone

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C. To set a good example to his friends

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3.How did the author complete cleaning the cars?

A. With the permission of the drivers

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Considering that Sundarbans National Park is situated in the tropicsSeptember to March is the ideal time to come hereAprilMay and June are too hot while July and August often bring heavy season winds that limit travel and don’t make for a very pleasant sightseeing experienceYou can really enjoy doing lots of charming things in the Sundarbans during September to March

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This bird habitat is a nesting place for dozens of tropical birds found in the SundarbansThe best way to observe these birds is climbing up the Sajnekhali WatchtowerIf you’re luckyyou’11 also catch the famed Bengal Tiger making its rounds through the swampy jungle

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3.What is the author’s main purpose in writing the text?

A. To advertise some natural animal habitats

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C. To introduce several charming villages in the vast tropical region

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