2021届天津第一零九中学高三英语上学期期中试题及答案.pdf
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1、2021 届天津第一零九中学高三英语上学期期中试题及答案 第一部分 阅读(共两节,满分 40 分)第一节(共 15 小题;每小题 2 分,满分 30 分)阅读下列短文,从每题所给的 A、B、C、D 四个选项中选出最佳选项 A You might not expect it,but cows are a large source of the greenhouse gases that are driving climate change.Cows produce lots of methane by breaking down the grass,Now scientists have sho
2、wn that the pollution from cows canbe reduced by adding a little seaweed to their food.Scientists first discovered that seaweed could help control methane from cows several years ago.But this work was done in a laboratory,there were many questions about whether the idea could work in real life.In th
3、e lab studies,the cows were given quite a bit of seaweed,and they would cause losing weight.That wasnt helpful,since cows are often sold by weight.It also wasnt clear if the seaweed would stop working if it was used for a longer period of time.Now,scientists from the University of California,Davis h
4、ave answered several of these questions.The researchers studied 21 cows on a farm for about five months.They taught the cows to get their food from inside a special hood,which allowed the scientists to measure the methane that the cows were giving off.This time,they used a much smaller amount of sea
5、weed,which they mixed with the cows food.The results were surprisingly good.In some cases,the cows produced 82%less methane.The improvement depended on the kind of food the cows were given,but even the worst-polluting cows produced 33%less methane.Over the five months,the scientists didnt see any si
6、gns that the cows stomachs were getting used to the seaweed and starting to produce more methane again.Another surprise came when they looked at the weight of the cows.The cows that were fed seaweed gained just as much weight as the other cows,but they didnt need as much food.But there are still som
7、e big problems with the idea of feeding cows seaweed.For one thing,theres notadequateseaweed to feed all of the cows in the world.So farmers would have to figure out a way to grow lots of seaweed.A bigger problem is that for most of their lives,cows live in fields,where they eat the grass.That means
8、 theres no chance to feed them seaweed every day.These problems need to be taken seriously if the world is going to avoid the worst effects of the climate crisis.Still,its true that something as simple as feeding cows seaweed can help reduce some of the pollution causing the climate crisis.1.Why did
9、 the scientists do the experiment on the farm?A.To control the amount of seaweed.B.To record the weight cows gained.C.To confirm the effect of seaweed in real life.D.To measure the amount of seaweed cows ale.2.The underlined word“adequate”means _.A.common B.special C.lacking D.enough 3.The passage i
10、s written to _.A.appeal to people not to raise the cows B.encourage people to plant the seaweed C.remind people of controlling cows weight D.call on people to take actions to reduce the pollution B Kids ages 6 to13 inCape Town,South Africa,really do dig learning at school!With the help of the Earthc
11、hild Project,which is offered in schools in two townships,students make worm(蠕虫)farms.The worms break down food waste and make the soil richer.Kids grow seedlings(幼苗)in containers and learn about the importance of good nutrition.The school program also offers yoga(瑜伽).Teachers find that the exercise
12、s help students focus better.The students enjoy Earthchild activities.“The children gets so excited”,says teacher Vuyelwa Rola.“The society we are in has a lot of noise.When students are taking part in the Earthchild Project,they feel calm.”Director Janna Kretzmar came up with the idea for the proje
13、ct in 2005.She read about schools inIndiathat involved kids in yoga and learning outside the classroom.She developed the Earthchild Project to offer similar activities inCape Townschools.“We hope the Earthchild Project can help students find solutions to all the challenges they are facing in the wor
14、ld today,”Kretzmar said.“The best place to create change is with the youth,through education.”The Earthchild Project combines schoolwork with hiking,gardening,healthy living,and yoga.“We need more than just math and science to become happy,healthy,inspired,and active citizens of our communities,”say
15、s Kretzmar.In some communities inCape Town,children live in poverty.They must walk long distances to get clean drinking water.Life is hard.But according to the Earthchild Projects Carly Appleby,the project works to give hope to every child.“Students who have hope,”she says,“aim for bigger goals”.4.W
16、hat do students benefit from yoga?A.It helps them calm down.B.It helps them concentrate.C.They can learn some living skills.D.They can learn about the importance of nutrition.5.What are students attitude towards the Earthchild Project?A.Uncaring.B.Doubtful.C.Supportive.D.Negative.6.What do you know
17、about the Earthchild Project?A.It was founded in 2005.B.It only offers outside activities.C.The idea came up by Vuyelwa Rola.D.It is aimed at helping students find solutions to challenges.7.Whats the best title of the passage?A.Hard Life inSouth Africa.B.Students school life inCape Town.C.Hope from
18、Earthchild Project inCape Town.D.The differences between traditional lessons and Earthchild Project.C After a year at sea,16-year-old Laura Dekker can finally say,“Missionaccomplished!”Last month,she finished a daring trip around the world aboard her 38-foot boat,Guppy.Dekker,who is from theNetherla
19、nds,traveled more than 30,000 miles all by herself.She is the youngest person ever to sail around the globe alone.Dekker had wanted to lake on this challenge when she was even younger.She first tried to set sail at the age of 13,but a court in theNetherlandsstopped her.They said that she was too you
20、ng to make such a risky trip by herself.But Dekker insisted she had the navigation skills and patience of an adult sailor.She finally took off on January 20,2011.During her trip,Dekker battled loneliness,storms,and worries about pirates.But she also got to surf,scuba dive,and started a new hobby:pla
21、ying the flute.Although Dekker didnt spend all of her time at seashe stopped at ports along the wayshe did spend her 16lh birthday on the open ocean.To celebrate,she ate doughnuts for breakfast.But Dekker didnt sail into the record books.Guinness World Records and the World Sailing Speed Record Coun
22、cil no longer recognize records for“youngest”sailors.They dropped the category in 2009 to discourage children fromattempting such dangerous feats(壮举).But that didnt stop Dekker,who was born on a yacht during a seven-year world voyage undertaken by her parents.Dekker doesnt mind that she wont hold an
23、 official record.She says it was a personal goal,and she is happy she achieved it.“I am not disappointed at all that Guinness World Record wont recognize my attempt.”Dekker wrote on her website.“I did not start on my trip to achieve any recordI did it just for myself.”8.Dekker wasnt allowed to sail
24、at the age of 13 because .A.people were concerned about her safety B.she didnt learn any sailing skills well C.she had to continue her study at school D.she didnt have enough patience for long trips 9.What does the underlined word“accomplished”in Paragraph 1 mean?A.Failed.B.Completed.C.Continued.D.S
25、tarted.10.In 2009 records for youngest sailors were canceled in order to .A.set a higher sailing standard for teen sailors B.stop children entering Guinness World Records C.encourage parents to sail with their children D.prevent children making dangerous attempts 11.What could be the best title for
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