2020年4月广东省深圳市普通高中2020届高三毕业班第二次线上统一测试(二模)理综物理试题及答案
广东省深圳市2020届高三第二次线上统一测试(4月) 物理 Word版含答案
绝密★启用前试卷类型：A2020年深圳市普通高中高三年级第二次线上统一测试理科综合能力测试物理试题注意事项：1.答卷前，考生务必将自己的学校、班级、姓名、考生号填写在答题卡指定位置。
2.选择题的答案填写或涂写方式，请按照学校使用的考试平台所需具体要求作答。
3.非选择题答案必须写在答题卡各题目指定区域内，写在非答题区域的答案无效。
4.考生必须保证纸质答题卡的整洁。
考试结束后，按照学校的具体要求提交答题卡。
二、选择题：本题共8小题，每小题6分。
在每小题给出的四个选项中，第14～18题只有一项符合题目要求，第19～21题有多项符合题目要求。
全部选对的得6分，选对但不全的得3分，有选错的得0分。
14.我国新一代可控核聚变研究装置“中国环流器二号M ”(又被称为“人造太阳”)将在2020年投入运行。
其所发生的可控核聚变方程是234112H H He X +→+，已知21H 、31H 、42He 和X 的质量分别为m 1、m 2、m 3和m 4，真空中的光速为c 。
下列说法正确的是A.X 是质子B.大亚湾核电站利用核聚变发电C.该核反应所释放的核能为△E ＝( m 1＋m 2－m 3－m 4)c 2D.21H 和31H 的结合能之和大于42He 的结合能15.2020年10月13日将发生火星冲日现象，即火星、地球和太阳刚好在一条直线上，如图所示，已知火星轨道半径为地球轨道半径的1.5倍，地球和火星绕太阳运行的轨道都视为圆。
则A.火星与地球绕太阳运行的线速度大小之比为2：3B.火星与地球绕太阳运行的加速度大小之比为4：9C.32D.2021年10月13日前有可能再次发生火星冲日现象16.一个带负电的粒子从x＝0处由静止释放，仅受电场力作用，沿x轴正方向运动，加速度a 随位置变化的关系如图所示，x2－x1＝x3－x2。
可以得出A.从x1到x3过程中，电势先升高后降低B.在x1和x3处，电场强度相同C.粒子经x1和x3处，速度等大反向D.粒子在x2处，电势能最大17.户外野炊所用的便携式三脚架，由三根完全相同的轻杆通过铰链组合在一起，每根杆均可绕铰链自由转动。
2020年深圳市普通高中高三年级第二次线上统一测试(文科数学)参考答案
已知数列{an}的首项 a1
=
2 3
， an+1an
+
an+1
=
2an
(an
0, n N*) ．
（1）证明：数列{ 1 −1}是等比数列； an
（2）数列
n {
an
}
的前
n
项和
Sn
．
解：（1） an+1an + an+1 = 2an (an 0, n N*) ，
1 = an +1 = 1 + 1 1 ， an+1 2an 2 2 an
f
( x1 )
=
(1 +
a ) ex1 x1
=
(1 −
x2 ) ex1
，
f
(x2 )
= (1− x1) ex2
，
所以 ln f (x2 ) = ln(1− x1) ex2 = ln(1− x1) + x2 ，
ln f (x1) = ln(1− x2) ex1 = ln(1− x2) + x1 ，
所以 ln
所以 f (x) 在 (− , x1) 上是增函数， 在 (x1 , 0) 是减函数.
……………3 分
由 f (x) = (1+ a )ex = x + a ex 可知，
x
x
当 x = −a 时， f (x) = 0 ，当 x −a 时， f (x) 0 ，当 −a x 0 时， f (x) 0 ，
即1 an
=
1 2n
+1，
n an
=
n 2n
+n．
…………………………9 分
深圳市2020届高三第二次统一测试(4月)英语试题及答案
2020年深圳市普通高中高三年级第二次统一测试英语2020.4第二部分阅读理解（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和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
AFoods of the FutureWe asked young scientists to write an advertisement that answers this question: How will food options, food availability, and individuals’ food choices change in the future? A selection of their suggested marketing campaigns is below. Read previous NextGen V oices survey results at /collection/nextgen-voices. — Jennifer SillsPersonalized Meal PlansSend us your DNA, and we will predict your food preferences! Receive your personalized food basket, with a day-by-day diet program. We will send you full meals and personalized smoothies (水果奶昔) based on your genetic taste tendency.Ada Gabriela BlidnerTwitter:adagbbFresh FruitIf you miss sweet temperate fruits, welcome to our Moon Farm. Our fruit trees are planted in hybrid-soil and artificial air that reproduce Earth’s environment from 5000 years ago. Pick fruits with your family or ship to your doorstep with MoonEx. Freshness guaranteed.Yongsheng JiEmail: MeatOur steaks are sourced from natural grasslands, where cattle now fill the ecological roles. With FoodFootprint feeding system, we enhance natural grazing (放牧) to improve animal growth effectively while minimizing methane production and water consumption. At only $219.00/kg (including carbon taxes and ecological taxes), our steaks are affordable for the whole family.Falko BuschkeEmail: falko. buschkegmail. com21. Which of the following needs you to provide the information of your genes?A. Meat.B. Fresh Fruit.C. NextGen V oices.D. Personalized Meal Plans.22. Who should you contact if you want to have fun with your family?A. Jennifer Sills.B. Yongsheng Ji.C. Falko Buschke.D. Ada Gabriela Blidner.23. Which of the following best describes the steaks in Meat?A. Fresh.B. Green.C. Expensive.D. Personalized.BAmanda Seyfried didn’t grow up with dogs. With her busy work schedule, she didn’t think she could take care of a dog. In fact, she wasn’t looking for a furry friend at all.But then she met Finn. Today, the 34-year-old actress, who’s known for films Mamma Mia, is a dog owner and a spokeswoman at the welfare organization Best Friends Animal Society.“I can’t imagine my life without him,” Seyfried says of 6.5-year-old Australian shepherd Finn, who is allowed on her U.S. set. If for some reason he can’t join Seyfried on location - like on a recent trip when she traveled from France to China, Seyfried requests from her dog sitter twice — daily videos of him.Now with a new video for Best Friends Animal Society, she calls herself Finn’s “stage mother.”Seyfried and Finn shot an ’80s-themed video for the 9000StepsChallenge, which asks animal owners to walk 9,000 steps with their pets on the ninth day of the month to raise awareness to the fact that more than 9,000 dogs and cats are euthanized (安乐死) in shelters each day because there’s not enough room.As for the video shoot, in which Seyfried and Finn walked the 9,000 steps - it was more exhausting than a long walk. Seyfried was Finn’s trainer on the shoot. She believes that instead of being Fin n’s cp-star, she’ll go back to being BFFs.24. Why did Seyfried originally refuse a pet dog?A. She wasn’t not yet a spokeswoman.B. She wasn’t used to being with a dog.C. She was too busy to care for a dog.D. She had not enough room for a dog.25. Who does the underlined word “him” in paragraph 3 refer to?A. Finn.B. Seyfried.C. The dog sitter.D. Finn’s best friend.26. Why did Seyfried shoot the video together with Finn?A. To show how deep she loves Finn.B. To train Finn to have a long walk.C. To take part in an animal cp-star show.D. To call on public attention to pets’ life.27. Which section of a newspaper is this text most likely from?A. NewsB. LifeC. EducationD. SportsCPinocchio ma y be just a children’s fairy tale, but Spanish scientists at the University of Granada recently investigated this so-called “Pinocchio effect” and found that our noses don’t grow when we tell a lie, but actually shrink a bit.Dr. Gómez Milán and his team developed a lie detector test that used thermography（体温计）to tell if people were lying, and found that whenever participants in their research were being untruthful, the temperature of the tip of their nose dropped up to 1.2℃, while the temperature of their forehead increased up to 1.5℃. Scientist also found that drop in temperature at nose level actually caused it to slightly shrink, although the difference is undetected by the human eye.“One has to think in order to lie, which rises the temperature of the forehead,” Dr. Gómez Milán explainedthe findings. “At the same time we feel anxious, which lowers the temperature of the nose.”For this study, researchers asked a number of 60 students to perform various tasks while their temperature is scanned by technology. One of these tasks required making a 3 to 4 minutes call to their parents or a friend and telling a significant lie. Participants had to make up the lie themselves during the call. Interestingly, this lie detector picked up the “Pinocchio effect”temperature difference in 80 percent of the test subjects, which is a better rate of success than that of any modern lie detector.“With this method we have achieved to increase accuracy”, said Dr. Gómez Milán, who added that law enforcement interviewers could one day combine other lie detection technology with thermal imaging to achieve better results.28. Why does the writer talk about Pinocchio in the first paragraph?A. To tell a fairy tale.B. To give an example.C. To talk about a scientist.D. To introduce the topic.29. What is “Pinocchio effect”?A. Our noses will grow when we tell a lie.B. Our noses will shrink when we tell a lie.C. The temperature of the forehead falls if we lie.D. The temperature of the student rises for anxiety.30. How did Dr. Gómez Milán feel about the lie detector?A. Doubtful.B. Surprised.C. Confident.D. Puzzled.31. What lesson can we learn from the text?A. A lie will travel very hard.B. Many ways to bring a liar to light.C. A lie never lives to be old.D. Once a liar always a liar.DEast Africa is experiencing the worst desert locust outbreak in decades. Climate events have accelerated breeding of the pest across the region, and with a sudden rise in the locust population expected in coming weeks, urgent actions and funds are needed to prevent a human crisis.Twenty million people in six of the eight East African countries are most affected by an ongoing desert locust outbreak at risk of serious food insecurity. Considered among the most destructive of moving pests, an adult locust can consume 2g of plants per day, affecting crops and grasslands. A group typically holds 20 to 150 million locusts per square kilometer and can move hundreds of kilometers per day, invading areas covering millions of square kilometers. An active group, therefore, can destroy crops and grasslands within a very short period of time.That global warming could increase the risk of desert locust crisis was proposed over ten years ago, and in February, the UN Secretary-General António Guterres stated that the current outbreak is linked to the effects of climate change: “warmer seas mean more perfect breeding ground for locusts”. The outbreak has its origins in 2018, when a series of windstorms in the Arabian Peninsula (阿拉伯半岛) enabled the warm and wet conditions the desert locust requires to breed and band undetected in remote regions. Though our focus here is migration west, dreadful outbreaks of the desert locust have been experienced to the east.The situation is going out of control. A rescue operation and financial support admit no delay. The Food and Agricultural Organization (FAO) can take out only US$138 million for rapid response and immediate action —controlling the spread of the desert locust and safeguarding livelihoods. They say the maths is clear: about half the funding (资助) is needed for supervision, ground and sky control, and uniting efforts; the other half is needed for livelihoods and food security of farmers. As for the huge gap, they have called on the international community to act now through funding. However, by the end of February, just US$69 million had been promised.This most alarming crisis has developed and is worsening in East Africa. The funds needed to control the situation become very difficult to achieve and the gap is a big concern.32. Why does the crisis happen in East Africa?A. There is a big population there.B. There are large deserts and grasslands.C. Africa lies west of Arabian Peninsula.D. Good climate for breeding plays a role.33. Why does the writer list those figures in Para 2?A. To warn of the terrible damage by locusts.B. To help us understand how locusts live.C. To show how many locusts there are now.D. To draw a picture of the present Africa.34. What can we infer from the text?A. The crisis is not noticed until recently.B. More fund is needed to prevent the crisis.C. The crisis has been the focus of the world.D. Locusts are all from the Arabian Peninsula.35. Which is the best title for the text?A. Killing locusts before too lateB. Global warming, a world problemC. Funding Gap for Locust CrisisD. Africa, a crisis-stricken place第二节（共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
2020年深圳市普通高中高三年级第二次线上统一测试英语试题(含答案)
2020年深圳市普通高中高三年级第二次线上统一测试英语2020.4试卷共8页，卷面满分120分。
考试用时120分钟。
注意事项：1.答题前，先将自己的姓名、准考证号填写在答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
用2B铅笔将答题卡上试卷类型A后的方框涂黑。
2.选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3.非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4.考试结束后，请将本试题卷和答题卡一并上交。
第二部分阅读理解（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和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
AFoods of the FutureWe asked young scientists to write an advertisement that answers this question:How will food options,food availability,and individuals’food choices change in the future?A selection of their suggested marketing campaigns is below.Read previous NextGen Voices survey results at /collection/nextgen-voices.—Jennifer Sills Personalized Meal PlansSend us your DNA,and we will predict your food preferences!Receive your personalized food basket,with a day-by-day diet program.We will send you full meals and personalized smoothies(水果奶昔)based on your genetic taste tendency.Ada Gabriela BlidnerTwitter:@adagbbFresh FruitIf you miss sweet temperate fruits,welcome to our Moon Farm.Our fruit trees are planted in hybrid-soil and artificial air that reproduce Earth’s environment from5000years ago.Pick fruits with your family or ship to your doorstep with MoonEx.Freshness guaranteed.Yongsheng JiEmail:jiyongshengkey@MeatOur steaks are sourced from natural grasslands,where cattle now fill the ecological roles. With FoodFootprint feeding system,we enhance natural grazing(放牧)to improve animal growth effectively while minimizing methane production and water consumption.At only$219.00/kg (including carbon taxes and ecological taxes),our steaks are affordable for the whole family.Falko BuschkeEmail:falko.buschke@21.Which of the following needs you to provide the information of your genes?A.Meat.B.Fresh Fruit.C.NextGen Voices.D.Personalized Meal Plans.22.Who should you contact if you want to have fun with your family?A.Jennifer Sills.B.Yongsheng Ji.C.Falko Buschke.D.Ada Gabriela Blidner.23.Which of the following best describes the steaks in Meat?A.Fresh.B.Green.C.Expensive.D.Personalized.BAmanda Seyfried didn’t grow up with dogs.With her busy work schedule,she didn’t think she could take care of a dog.In fact,she wasn’t looking for a furry friend at all.But then she met Finn.Today,the34-year-old actress,who’s known for films Mamma Mia,is a dog owner and a spokeswoman at the welfare organization Best Friends Animal Society.“I can’t imagine my life without him,”Seyfried says of6.5-year-old Australian shepherd Finn, who is allowed on her U.S.set.If for some reason he can’t join Seyfried on location---like on a recent trip when she traveled from France to China,Seyfried requests from her dog sitter twice—daily videos of him.Now with a new video for Best Friends Animal Society,she calls herself Finn’s“stage mother.”Seyfried and Finn shot an’80s-themed video for the＃9000StepsChallenge,which asks animal owners to walk9,000steps with their pets on the ninth day of the month to raise awareness to the fact that more than9,000dogs and cats are euthanized(安乐死)in shelters each day because there’s not enough room.As for the video shoot,in which Seyfried and Finn walked the9,000steps---it was more exhausting than a long walk.Seyfried was Finn’s trainer on the shoot.She believes that instead of being Finn’s cp-star,she’ll go back to being BFFs.24.Why did Seyfried originally refuse a pet dog?A.She wasn’t not yet a spokeswoman.B.She wasn’t used to being with a dog.C.She was too busy to care for a dog.D.She had not enough room for a dog.25.Who does the underlined word“him”in paragraph3refer to?A.Finn.B.Seyfried.C.The dog sitter.D.Finn’s best friend.26.Why did Seyfried shoot the video together with Finn?A.To show how deep she loves Finn.B.To train Finn to have a long walk.C.To take part in an animal cp-star show.D.To call on public attention to pets’life.27.Which section of a newspaper is this text most likely from?A.NewsB.LifecationD.SportsCPinocchio may be just a children’s fairy tale,but Spanish scientists at the University of Granada recently investigated this so-called“Pinocchio effect”and found that our noses don’t grow when we tell a lie,but actually shrink a bit.Dr.Gómez Milán and his team developed a lie detector test that used thermography（体温计）to tell if people were lying,and found that whenever participants in their research were being untruthful,the temperature of the tip of their nose dropped up to1.2℃,while the temperature of their forehead increased up to1.5℃.Scientist also found that drop in temperature at nose level actually caused it to slightly shrink,although the difference is undetected by the human eye.“One has to think in order to lie,which rises the temperature of the forehead,”Dr.Gómez Milán explained the findings.“At the same time we feel anxious,which lowers the temperature of the nose.”For this study,researchers asked a number of60students to perform various tasks while their temperature is scanned by technology.One of these tasks required making a3to4minutes call to their parents or a friend and telling a significant lie.Participants had to make up the lie themselves during the call.Interestingly,this lie detector picked up the“Pinocchio effect”temperature difference in80percent of the test subjects,which is a better rate of success than that of any modern lie detector.“With this method we have achieved to increase accuracy”,said Dr.Gómez Milán,who added that law enforcement interviewers could one day combine other lie detection technology with thermal imaging to achieve better results.28.Why does the writer talk about Pinocchio in the first paragraph?A.To tell a fairy tale.B.To give an example.C.To talk about a scientist.D.To introduce the topic.29.What is“Pinocchio effect”?A.Our noses will grow when we tell a lie.B.Our noses will shrink when we tell a lie.C.The temperature of the forehead falls if we lie.D.The temperature of the student rises for anxiety.30.How did Dr.Gómez Milán feel about the lie detector?A.Doubtful.B.Surprised.C.Confident.D.Puzzled.31.What lesson can we learn from the text?A.A lie will travel very hard.B.Many ways to bring a liar to light.C.A lie never lives to be old.D.Once a liar always a liar.DEast Africa is experiencing the worst desert locust outbreak in decades.Climate events have accelerated breeding of the pest across the region,and with a sudden rise in the locust population expected in coming weeks,urgent actions and funds are needed to prevent a human crisis.Twenty million people in six of the eight East African countries are most affected by an ongoing desert locust outbreak at risk of serious food insecurity.Considered among the most destructive of moving pests,an adult locust can consume2g of plants per day,affecting crops and grasslands.A group typically holds20to150million locusts per square kilometer and can move hundreds of kilometers per day,invading areas covering millions of square kilometers.An active group,therefore,can destroy crops and grasslands within a very short period of time.That global warming could increase the risk of desert locust crisis was proposed over ten years ago,and in February,the UN Secretary-General António Guterres stated that the current outbreak is linked to the effects of climate change:“warmer seas mean more perfect breeding ground for locusts”.The outbreak has its origins in2018,when a series of windstorms in the Arabian Peninsula(阿拉伯半岛)enabled the warm and wet conditions the desert locust requires to breed and band undetected in remote regions.Though our focus here is migration west,dreadful outbreaks of the desert locust have been experienced to the east.The situation is going out of control.A rescue operation and financial support admit no delay. The Food and Agricultural Organization(FAO)can take out only US$138million for rapid response and immediate action—controlling the spread of the desert locust and safeguarding livelihoods.They say the maths is clear:about half the funding(资助)is needed for supervision, ground and sky control,and uniting efforts;the other half is needed for livelihoods and food security of farmers.As for the huge gap,they have called on the international community to act now through funding.However,by the end of February,just US$69million had been promised.This most alarming crisis has developed and is worsening in East Africa.The funds needed to control the situation become very difficult to achieve and the gap is a big concern.32.Why does the crisis happen in East Africa?A.There is a big population there.B.There are large deserts and grasslands.C.Africa lies west of Arabian Peninsula.D.Good climate for breeding plays a role.33.Why does the writer list those figures in Para2?A.To warn of the terrible damage by locusts.B.To help us understand how locusts live.C.To show how many locusts there are now.D.To draw a picture of the present Africa.34.What can we infer from the text?A.The crisis is not noticed until recently.B.More fund is needed to prevent the crisis.C.The crisis has been the focus of the world.D.Locusts are all from the Arabian Peninsula.35.Which is the best title for the text?A.Killing locusts before too lateB.Global warming,a world problemC.Funding Gap for Locust CrisisD.Africa,a crisis-stricken place第二节（共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
【4月深圳二模英语】2020年深圳市普通高中高三年级第二次在线统一测试英语试卷及参考答案(二模)
2020年深圳市普通高中高三年级第二次线上统一测试英语2020.4试卷共8页，卷面满分120分。
考试用时120分钟。
注意事项：1.答题前，先将自己的姓名、准考证号填写在答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
用2B铅笔将答题卡上试卷类型A后的方框涂黑。
2.选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3.非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4.考试结束后，请将本试题卷和答题卡一并上交。
第二部分阅读理解（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和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
AFoods of the FutureWe asked young scientists to write an advertisement that answers this question:How will food options,food availability,and individuals’food choices change in the future?A selection of their suggested marketing campaigns is below.Read previous NextGen Voices survey results at /collection/nextgen-voices.—Jennifer Sills Personalized Meal PlansSend us your DNA,and we will predict your food preferences!Receive your personalized food basket,with a day-by-day diet program.We will send you full meals and personalized smoothies(水果奶昔)based on your genetic taste tendency.Ada Gabriela BlidnerTwitter:@adagbbFresh FruitIf you miss sweet temperate fruits,welcome to our Moon Farm.Our fruit trees are planted in hybrid-soil and artificial air that reproduce Earth’s environment from5000years ago.Pick fruits with your family or ship to your doorstep with MoonEx.Freshness guaranteed.Yongsheng JiEmail:jiyongshengkey@MeatOur steaks are sourced from natural grasslands,where cattle now fill the ecological roles. With FoodFootprint feeding system,we enhance natural grazing(放牧)to improve animal growth effectively while minimizing methane production and water consumption.At only$219.00/kg (including carbon taxes and ecological taxes),our steaks are affordable for the whole family.Falko BuschkeEmail:falko.buschke@21.Which of the following needs you to provide the information of your genes?A.Meat.B.Fresh Fruit.C.NextGen Voices.D.Personalized Meal Plans.22.Who should you contact if you want to have fun with your family?A.Jennifer Sills.B.Yongsheng Ji.C.Falko Buschke.D.Ada Gabriela Blidner.23.Which of the following best describes the steaks in Meat?A.Fresh.B.Green.C.Expensive.D.Personalized.BAmanda Seyfried didn’t grow up with dogs.With her busy work schedule,she didn’t think she could take care of a dog.In fact,she wasn’t looking for a furry friend at all.But then she met Finn.Today,the34-year-old actress,who’s known for films Mamma Mia,is a dog owner and a spokeswoman at the welfare organization Best Friends Animal Society.“I can’t imagine my life without him,”Seyfried says of6.5-year-old Australian shepherd Finn, who is allowed on her U.S.set.If for some reason he can’t join Seyfried on location---like on a recent trip when she traveled from France to China,Seyfried requests from her dog sitter twice—daily videos of him.Now with a new video for Best Friends Animal Society,she calls herself Finn’s“stage mother.”Seyfried and Finn shot an’80s-themed video for the＃9000StepsChallenge,which asks animal owners to walk9,000steps with their pets on the ninth day of the month to raise awareness to the fact that more than9,000dogs and cats are euthanized(安乐死)in shelters each day because there’s not enough room.As for the video shoot,in which Seyfried and Finn walked the9,000steps---it was more exhausting than a long walk.Seyfried was Finn’s trainer on the shoot.She believes that instead of being Finn’s cp-star,she’ll go back to being BFFs.24.Why did Seyfried originally refuse a pet dog?A.She wasn’t not yet a spokeswoman.B.She wasn’t used to being with a dog.C.She was too busy to care for a dog.D.She had not enough room for a dog.25.Who does the underlined word“him”in paragraph3refer to?A.Finn.B.Seyfried.C.The dog sitter.D.Finn’s best friend.26.Why did Seyfried shoot the video together with Finn?A.To show how deep she loves Finn.B.To train Finn to have a long walk.C.To take part in an animal cp-star show.D.To call on public attention to pets’life.27.Which section of a newspaper is this text most likely from?A.NewsB.LifecationD.SportsCPinocchio may be just a children’s fairy tale,but Spanish scientists at the University of Granada recently investigated this so-called“Pinocchio effect”and found that our noses don’t grow when we tell a lie,but actually shrink a bit.Dr.Gómez Milán and his team developed a lie detector test that used thermography（体温计）to tell if people were lying,and found that whenever participants in their research were being untruthful,the temperature of the tip of their nose dropped up to1.2℃,while the temperature of their forehead increased up to1.5℃.Scientist also found that drop in temperature at nose level actually caused it to slightly shrink,although the difference is undetected by the human eye.“One has to think in order to lie,which rises the temperature of the forehead,”Dr.Gómez Milán explained the findings.“At the same time we feel anxious,which lowers the temperature of the nose.”For this study,researchers asked a number of60students to perform various tasks while their temperature is scanned by technology.One of these tasks required making a3to4minutes call to their parents or a friend and telling a significant lie.Participants had to make up the lie themselves during the call.Interestingly,this lie detector picked up the“Pinocchio effect”temperature difference in80percent of the test subjects,which is a better rate of success than that of any modern lie detector.“With this method we have achieved to increase accuracy”,said Dr.Gómez Milán,who added that law enforcement interviewers could one day combine other lie detection technology with thermal imaging to achieve better results.28.Why does the writer talk about Pinocchio in the first paragraph?A.To tell a fairy tale.B.To give an example.C.To talk about a scientist.D.To introduce the topic.29.What is“Pinocchio effect”?A.Our noses will grow when we tell a lie.B.Our noses will shrink when we tell a lie.C.The temperature of the forehead falls if we lie.D.The temperature of the student rises for anxiety.30.How did Dr.Gómez Milán feel about the lie detector?A.Doubtful.B.Surprised.C.Confident.D.Puzzled.31.What lesson can we learn from the text?A.A lie will travel very hard.B.Many ways to bring a liar to light.C.A lie never lives to be old.D.Once a liar always a liar.DEast Africa is experiencing the worst desert locust outbreak in decades.Climate events have accelerated breeding of the pest across the region,and with a sudden rise in the locust population expected in coming weeks,urgent actions and funds are needed to prevent a human crisis.Twenty million people in six of the eight East African countries are most affected by an ongoing desert locust outbreak at risk of serious food insecurity.Considered among the most destructive of moving pests,an adult locust can consume2g of plants per day,affecting crops and grasslands.A group typically holds20to150million locusts per square kilometer and can move hundreds of kilometers per day,invading areas covering millions of square kilometers.An active group,therefore,can destroy crops and grasslands within a very short period of time.That global warming could increase the risk of desert locust crisis was proposed over ten years ago,and in February,the UN Secretary-General António Guterres stated that the current outbreak is linked to the effects of climate change:“warmer seas mean more perfect breeding ground for locusts”.The outbreak has its origins in2018,when a series of windstorms in the Arabian Peninsula(阿拉伯半岛)enabled the warm and wet conditions the desert locust requires to breed and band undetected in remote regions.Though our focus here is migration west,dreadful outbreaks of the desert locust have been experienced to the east.The situation is going out of control.A rescue operation and financial support admit no delay. The Food and Agricultural Organization(FAO)can take out only US$138million for rapid response and immediate action—controlling the spread of the desert locust and safeguarding livelihoods.They say the maths is clear:about half the funding(资助)is needed for supervision, ground and sky control,and uniting efforts;the other half is needed for livelihoods and food security of farmers.As for the huge gap,they have called on the international community to act now through funding.However,by the end of February,just US$69million had been promised.This most alarming crisis has developed and is worsening in East Africa.The funds needed to control the situation become very difficult to achieve and the gap is a big concern.32.Why does the crisis happen in East Africa?A.There is a big population there.B.There are large deserts and grasslands.C.Africa lies west of Arabian Peninsula.D.Good climate for breeding plays a role.33.Why does the writer list those figures in Para2?A.To warn of the terrible damage by locusts.B.To help us understand how locusts live.C.To show how many locusts there are now.D.To draw a picture of the present Africa.34.What can we infer from the text?A.The crisis is not noticed until recently.B.More fund is needed to prevent the crisis.C.The crisis has been the focus of the world.D.Locusts are all from the Arabian Peninsula.35.Which is the best title for the text?A.Killing locusts before too lateB.Global warming,a world problemC.Funding Gap for Locust CrisisD.Africa,a crisis-stricken place第二节（共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
【4月深圳二模理数】2020年深圳普通高中高三年级第二次在线测试理科数学试卷及参考答案评分标准(二模)
的中点．直线
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,则
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的值为
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C． 1 3
D． 2 3
D
A
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C1 B1
C B
二、填空题：本大题共 4 小题，每小题 5 分，共 20 分．
13．已知 x 轴为曲线 f (x) = 4x3 + 4(a −1)x +1的切线，则 a 的值为
2
3
得到的图象所对应的函数为奇函数．.现有下列结论：
①函数 f (x) 的图象关于直线 x = 5π 对称 12
②函数 f (x) 的图象关于点 ( π , 0) 对称 12
③函数
f
(x)
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−
π 2
,
−
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上单调递减
④函数
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在
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上有
3
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其中所有正确结论的编号是
A．①②
S
A B
D C
19．（本小题满分 12 分）
_________.
16．在平面直角坐标系中，过椭圆
x2 a2
+
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= 1(
a b 0)的左焦点 F 的直线交椭圆于 A ，B 两点，
C 为椭圆的右焦点，且 ABC 是等腰直角三角形，且 A = 90 ，则椭圆的离心率为
．
三 、 解答题： 共 70 分．解答应写出文字说明、证明过程或演算步骤．第 17~21 题为必考题，每 个试题考生都必须作答．第 22、23 题为选考题，考生根据要求作答． (一 ) 必考题：共 60 分． 17．（本小题满分 12 分）
2020届广东省深圳市高三第二次线上统一测试（4月） 数学（文）
绝密★启用前试卷类型：(A)2020年深圳市普通高中高三年级第二次线上统一测试文科数学本试卷共6页，23小题，满分150分。
考试用时120分钟。
一、选择题：本题共12小题，每小题5分，共60分。
在每小题给出的四个选项中，只有一项是符合题目要求的。
1.设集合A ＝{x|－1<x<2}，B ＝{x|y ＝lg(x －1)}，则A∩(R B)＝RA.[－1，2)B.[2，＋∞)C.(－1，1]D.[－1，＋∞)2.棣莫弗公式(cosx ＋isinx)n ＝cosnx ＋isinnx(i 为虚数单位)是由法国数学家棣莫弗(1667－1754)发现的，根据棣莫弗公式可知，复数(cos 5π＋isin5π)6在复平面内所对应的点位于 A.第一象限 B.第二象限 C.第三象限 D.第四象限3.已知点(3，1)和(－4，6)在直线3x －2y ＋a ＝0的两侧，则实数a 的取值范围是A.a<7或a>24B.a ＝7或a ＝24C.－24<a<7D.－7<a<244.已知1()3,1()2,1x a x a x f x a x ⎧-+<⎪=⎨⎪≥⎩是(－∞，＋∞)上的减函数，那么实数a 的取值范围是 A.(0，1) B.(0，12) C.[16，12) D.[16，1) 5.一个容量为100的样本，其数据分组与各组的频数如下表：则样本数据落在(10，40]上的频率为A.0.13B.0.52C.0.39D.0.646. .在△ABC 中，D 是BC 边上一点，AD ⊥AB ，3BC BD =，AD ＝1，则AC AD ⋅＝3 3 3 37.sin163°sin223°＋sin253°sin313°＝A.－12B.12C.－32D.328.已知抛物线y 2＝8x ，过点A(2，0)作倾斜角为3π的直线l ，若l 与抛物线交于B 、C 两点，弦BC 的中垂线交x 轴于点P ，则线段AP 的长为A.163B.839.如图，在四面体ABCD 中，截面PQMN 是正方形，现有下列结论：①AC ⊥BD ②AC ∥截面PQMN③AC ＝BD ④异面直线PM 与BD 所成的角为45°其中所有正确结论的编号是A.①③B.①②④C.③④D.②③④10.已知函数f(x)＝sin(ωx ＋φ)(ω>0，|φ|<2π)的最小正周期是π，把它图象向右平移3π个单位后得到的图象所对应的函数为奇函数，则下列结论正确的是A.函数f(x)的图象关于直线x ＝23π对称 B.函数f(x)的图象关于点(1112π，0)对称 C.函数f(x)在区间[－2π，－12π]上单调递减 D.函数f(x)在[4π，32π]上有3个零点 11.已知函数y ＝f(x)是R 上的奇函数，函数y ＝g(x)是R 上的偶函数，且f(x)＝g(x ＋2)，当0≤x ≤2时，g(x)＝x －2，则g(10.5)的值为A.1.5B.8.5C.－0.5D.0.512.已知双曲线C ：22221(0,0)x y a b a b-=>>的左、右焦点分别为F 1、F 2，O 为坐标原点，点P 是双曲线在第一象限内的点，直线PO 、PF 2分别交双曲线C 的左右支于另一点M 、N ，若|PF 1|＝2|PF 2|，且∠MF 2N ＝120°，则双曲线的离心率为二、填空题：本大题共4小题，每小题5分，共20分。
广东省深圳市2020届高三英语第二次线上统一测试月试题
广东省深圳市2020届高三英语第二次线上统一测试（4月）试题试卷共8页，卷面满分120分。
考试用时120分钟。
注意事项：1.答题前，先将自己的姓名、准考证号填写在答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
用2B铅笔将答题卡上试卷类型A后的方框涂黑。
2.选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3.非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4.考试结束后，请将本试题卷和答题卡一并上交。
第二部分阅读理解（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和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
AFoods of the FutureWe asked young scientists to write an advertisement that answers this question: How will food options, food availability, and individuals’ food choices change in the future? A selection of their suggested marketing campaigns is below. Read previous NextGen Voices survey results at /collection/nextgen-voices. — Jennifer Sills Personalized Meal PlansSend us your DNA, and we will predict your food preferences! Receive your personalized food basket, with a day-by-day diet program. We will send you full meals and personalized smoothies (水果奶昔) based on your genetic taste tendency.Ada Gabriela BlidnerTwitter:adagbbFresh FruitIf you miss sweet temperate fruits, welcome to our Moon Farm. Our fruit treesare planted in hybrid-soil and artificial air that reproduce Earth’s environment from 5000 years ago. Pick fruits with your family or ship to your doorstep with MoonEx. Freshness guaranteed.Yongsheng JiEmail: MeatOur steaks are sourced from natural grasslands, where cattle now fill the ecological roles. With FoodFootprint feeding system, we enhance natural grazing (放牧) to improve animal growth effectively while minimizing methane production and water consumption. At only $219.00/kg (including carbon taxes and ecological taxes), our steaks are affordable for the whole family.Falko BuschkeEmail: falko. buschkegmail. com21. Which of the following needs you to provide the information of your genes?A. Meat.B. Fresh Fruit.C. NextGen Voices.D. Personalized Meal Plans.22. Who should you contact if you want to have fun with your family?A. Jennifer Sills.B. Yongsheng Ji.C. Falko Buschke.D. Ada Gabriela Blidner.23. Which of the following best describes the steaks in Meat?A. Fresh.B. Green.C. Expensive.D. Personalized.BAmanda Seyfried didn’t grow up with dogs. With her busy work schedule, she didn’t think she could take care of a dog. In fact, she wasn’t looking for a furry friend at all.But then she met Finn. Today, the 34-year-old actress, who’s known for films Mamma Mia, is a dog owner and a spokeswoman at the welfare organization Best Friends Animal Society.“I can’t imagine my life without him,” Seyfried says of 6.5-year-old Australian shepherd Finn, who is allowed on her U.S. set. If for some reason he can’t joinSeyfried on location - like on a recent trip when she traveled from France to China, Seyfried requests from her dog sitter twice — daily videos of him.Now with a new video for Best Friends Animal Society, she calls herself Finn’s “stage mother.”Seyfried and Finn shot an ’80s-themed video for the 9000StepsChallenge, which asks animal owners to walk 9,000 steps with their pets on the ninth day of the month to raise awareness to the fact that more than 9,000 dogs and cats are euthanized (安乐死) in shelters each day because there’s not enough room.As for the video shoot, in which Seyfried and Finn walked the 9,000 steps - it was more exhausting than a long walk. Seyfried was Finn’s trainer on the shoot. She believes that instead of being Finn’s cp-star, she’ll go back to being BFFs.24. Why did Seyfried originally refuse a pet dog?A. She wasn’t not yet a spokeswoman.B. She wasn’t used to being with a dog.C. She was too busy to care for a dog.D. She had not enough room for a dog.25. Who does the underlined word “him” in paragraph 3 refer to?A. Finn.B. Seyfried.C. The dog sitter.D. Finn’s best friend.26. Why did Seyfried shoot the video together with Finn?A. To show how deep she loves Finn.B. To train Finn to have a long walk.C. To take part in an animal cp-star show.D. To call on public attention to pets’ life.27. Which section of a newspaper is this text most likely from?A. NewsB. LifeC. EducationD. SportsCPinocchio may be just a children’s fairy tale, but Spanish scientists at the University of Granada recently investigated this so-called “Pinocchio effect” and found that our noses don’t grow when we tell a lie, but actually shrink a bit.Dr. Gómez Milán and his team developed a lie detector test that used thermography （体温计） to tell if people were lying, and found that whenever participants in their research were being untruthful, the temperature of the tip of their nose dropped up to 1.2℃, while the temperature of their forehead increased up to 1.5℃. Scientistalso found that drop in temperature at nose level actually caused it to slightly shrink, although the difference is undetected by the human eye.“One has to think in order to lie, which rises the temperature of the forehead,” Dr. Gómez Milán explained the findings. “At the same time we feel anxious, which lowers the temperature of the nose.”For this study, researchers asked a number of 60 students to perform various tasks while their temperature is scanned by technology. One of these tasks required making a 3 to 4 minutes call to their parents or a friend and telling a significant lie. Participants had to make up the lie themselves during the call. Interestingly, this lie detector picked up the “Pinocchio effect”temperature difference in 80 percent of the test subjects, which is a better rate of success than that of any modern lie detector.“With this method we have achieved to increase accuracy”, said Dr. Gómez Milán, who added that law enforcement interviewers could one day combine other lie detection technology with thermal imaging to achieve better results.28. Why does the writer talk about Pinocchio in the first paragraph?A. To tell a fairy tale.B. To give an example.C. To talk about a scientist.D. To introduce the topic.29. What is “Pinocchio effect”?A. Our noses will grow when we tell a lie.B. Our noses will shrink when we tell a lie.C. The temperature of the forehead falls if we lie.D. The temperature of the student rises for anxiety.30. How did Dr. Gómez Milán feel about the lie detector?A. Doubtful.B. Surprised.C. Confident.D. Puzzled.31. What lesson can we learn from the text?A. A lie will travel very hard.B. Many ways to bring a liar to light.C. A lie never lives to be old.D. Once a liar always a liar.DEast Africa is experiencing the worst desert locust outbreak in decades. Climateevents have accelerated breeding of the pest across the region, and with a sudden rise in the locust population expected in coming weeks, urgent actions and funds are needed to prevent a human crisis.Twenty million people in six of the eight East African countries are most affected by an ongoing desert locust outbreak at risk of serious food insecurity. Considered among the most destructive of moving pests, an adult locust can consume 2g of plants per day, affecting crops and grasslands. A group typically holds 20 to 150 million locusts per square kilometer and can move hundreds of kilometers per day, invading areas covering millions of square kilometers. An active group, therefore, can destroy crops and grasslands within a very short period of time.That global warming could increase the risk of desert locust crisis was proposed over ten years ago, and in February, the UN Secretary-General António Guterres stated that the current outbreak is linked to the effects of climate change: “warmer seas mean more perfect breeding ground for locusts”. The outbreak has its origins in 2018, when a series of windstorms in the Arabian Peninsula (阿拉伯半岛) enabled the warm and wet conditions the desert locust requires to breed and band undetected in remote regions. Though our focus here is migration west, dreadful outbreaks of the desert locust have been experienced to the east.The situation is going out of control. A rescue operation and financial support admit no delay. The Food and Agricultural Organization (FAO) can take out only US$138 million for rapid response and immediate action —controlling the spread of the desert locust and safeguarding livelihoods. They say the maths is clear: about half the funding (资助) is needed for supervision, ground and sky control, and uniting efforts; the other half is needed for livelihoods and food security of farmers. As for the huge gap, they have called on the international community to act now through funding. However, by the end of February, just US$69 million had been promised.This most alarming crisis has developed and is worsening in East Africa. The funds needed to control the situation become very difficult to achieve and the gap is a big concern.32. Why does the crisis happen in East Africa?A. There is a big population there.B. There are large deserts and grasslands.C. Africa lies west of Arabian Peninsula.D. Good climate for breeding playsa role.33. Why does the writer list those figures in Para 2?A. To warn of the terrible damage by locusts.B. To help us understand how locusts live.C. To show how many locusts there are now.D. To draw a picture of the present Africa.34. What can we infer from the text?A. The crisis is not noticed until recently.B. More fund is needed to prevent the crisis.C. The crisis has been the focus of the world.D. Locusts are all from the Arabian Peninsula.35. Which is the best title for the text?A. Killing locusts before too lateB. Global warming, a world problemC. Funding Gap for Locust CrisisD. Africa, a crisis-stricken place第二节（共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
2020年深圳市普通高中高三年级第二次线上测试(有详细答案解析及评分细则)
绝密★启用前试卷类型：A2020年深圳市普通高中高三年级第二次线上测试语文2020.4.11注意事项:1．答卷前，考生务必将自己的学校、班级、姓名、考生号填写在答题卡指定位置。
2．选择题的答案填写或涂写方式，请按照学校使用的考试平台所需具体要求作答。
3．非选择题答案必须写在答题卡各题目指定区域内，写在非答题区域的答案无效。
4．考生必须保证纸质答题卡的整洁。
考试结束后，按照学校的具体要求提交答题卡。
一、现代文阅读（36分）（一）论述类文本阅读（本题共3小题，9分）阅读下面的文字，完成1～3题。
在论辩说理中，很少有人能直接说服对立一方。
这并不表示他论证乏力，而是因为，一般来说，论辩式说理起到的是强化自己一方、而非软化对立一方的作用。
因此，对立的双方就有可能在辩论中越说越僵。
极端的越说越僵，这种情况在说理文化良好的社会中较少发生。
这是因为辩论者在辩论中，理是说给“第三方”听的，而不是说给对立方听的。
以第三方为说服对象，并由此来确定说理的主要构成要素，这便是英国哲学家图尔敏对公共说理的一大贡献。
在图尔敏之前，对说理结构的理解和分析是以形式逻辑为着眼点的。
图尔敏提出的说理分析模式却着眼于听众，具体而言，是那些立场中立、具有独立思考和判断能力的第三方听众。
例如，在法庭上，有争执的双方各自陈述自己的立场和理由，同时还就对方陈述中的具体环节和细节提出质疑。
各方这么做是为了说服中立的第三方——法官或陪审员。
图尔敏论证模式包括主张、保证、论据、支持、语气和反驳等要素。
它具有两个基本的认知特征：第一，说理中所有的主张、理由、中介保证、理由的理由、对保证的支持等等，都是可以由对方诘问和质疑的，说理一方必须为此做好准备。
第二，决定说理一方是否有理的是中立的第三方（法官和陪审员），不是自己一方或反对一方的“粉丝”。
在这两点上，图尔敏模式都不相同于形式逻辑论证。
形式逻辑的论证是以说理结构为准的，对于说理的具体听众以及他们的疑问并不关注。
2020届广东省深圳市普通高中高三毕业班第二次教学质量检测(二模)数学(文)试题及答案解析
绝密★启用前广东省深圳市普通高中2020届高三毕业班第二次教学质量检测(二模)数学(文)试题注意事项：1.本试卷分第I卷(选择题)和第II卷(非选择题)两部分，全卷满分150分。
考试时间120分钟。
答题前，考生务必将自己的姓名、准考证号等信息填写在答题卡上。
2.回答第I卷时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号。
写在本试卷上无效。
3.回答第II卷时，将答案写在答题卡上。
写在本试卷上无效。
4.考试结束后，将本试卷和答题卡一并交回。
第I卷(选择题共60分)一、选择题(本大题共12小题,每小题5分,共60分。
在每小题给出的四个选项中,只有一项是符合题目要求的)1.已知集合A＝{x∈N|－3<x<3},B＝{－4,－2,0,2,4},则A∩B＝A.{－2,0,2}B.{0,2}C.{0}D.{2}2.若在复平面内,复数z＝2＋mi(m∈R)对应的点位于第四象限,且|z|＝4,则m＝A.－ C.23.已知函数f(x)的图象关于原点对称,当x>0时,f(x)＝2e x－3,则f(ln 13)＝A.－73B.73C.3D.－34.曲线y＝(x3－3x)·lnx在点(1,0)处的切线方程为A.2x＋y－2＝0B.x＋2y－1＝0C.x＋y－1＝0D.4x＋y－4＝05.2019年10月18日－27日,第七届世界军人运动会在湖北武汉举办,中国代表团共获得133金64银42铜,共239枚奖牌。
为了调查各国参赛人员对主办方的满意程度,研究人员随机抽取了500名参赛运动员进行调查,所得数据如下所示：现有如下说法：①在参与调查的500名运动员中任取1人,抽到对主办方表示满意的男性运动员的概率为12； ②在犯错误的概率不超过1%的前提下可以认为“是否对主办方表示满意与运动员的性别有关”；③没有99.9%的把握认为“是否对主办方表示满意与运动员的性别有关”。
2020年深圳市普通高中高三年级第二次在线统一测试数学(理科)参考答案
2020 年深圳市普通高中高三年级第二次线上统一测试（理数）试题参考答案 第 5 页 共 10页
y−
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设直线 l 与曲线 y = g(x) 相切于点 B(x1, ex1 ) ，
又 (e
−1)
=
−
e
1 −1
0
， (e2
−1)
=
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−2 −1
0
，
所以函数(x) 在 (e −1, e2 −1) 上有唯一的零点，又因为(x) 在 (0, +) 单调递增，
所以方程 ln(x0
+ 1)
−
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0
在
(0, +) 上存在唯一的根，
故在区间 (0, +) 上存在唯一的 x0 ，使得直线 l 与曲线 y = g(x) 相切．………………12 分
因为 g(x) = ex ，
……………………9 分
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e x1
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由（1）可知，当 a = 1时，函数(x) = ln(x +1) − x +1（x −1) 在 (0, +) 单调递增， x
2020年4月12日广东省深圳市高中2020届高三毕业班第二次线上统一测试(二模)英语真题试题及答案
绝密★启用前广东省深圳市普通高中2020届高三毕业班第二次线上统一测试(二模)英语试题2020年4月12日试卷共8页，卷面满分120分。
考试用时120分钟。
第二部分阅读理解（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和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
AFoods of the FutureWe asked young scientists to write an advertisement that answers this question: How will food options，food availability，and individuals’ food choices change in the future? A selection of their suggested marketing campaigns is below. Read previous NextGen V oices survey results at /collection/nextgen-voices. — Jennifer SillsPersonalized Meal PlansSend us your DNA，and we will predict your food preferences! Receive your personalized food basket，with a day-by-day diet program. We will send you full meals and personalized smoothies (水果奶昔) based on your genetic taste tendency.Ada Gabriela BlidnerTwitter:adagbbFresh FruitIf you miss sweet temperate fruits，welcome to our Moon Farm. Our fruit trees are planted in hybrid-soil and artificial air that reproduce Earth’s environment from5000 years ago. Pick fruits with your family or ship to your doorstep with MoonEx. Freshness guaranteed.Yongsheng JiEmail: MeatOur steaks are sourced from natural grasslands，where cattle now fill the ecological roles. WithFoodFootprint feeding system，we enhance natural grazing (放牧) to improve animal growth effectively while minimizing methane production and water consumption. At only $219.00/kg (including carbon taxes and ecological taxes)，our steaks are affordable for the whole family.Falko BuschkeEmail: falko. buschkegmail. com21. Which of the following needs you to provide the information of your genes?A. Meat.B. Fresh Fruit.C. NextGen V oices.D. Personalized Meal Plans.22. Who should you contact if you want to have fun with your family?A. Jennifer Sills.B. Yongsheng Ji.C. Falko Buschke.D. Ada Gabriela Blidner.23. Which of the following best describes the steaks in Meat?A. Fresh.B. Green.C. Expensive.D. Personalized.BAmanda Seyfried didn’t grow up with dogs. With her busy work schedule，she didn’t think she could take care of a dog. In fact，she wasn’t looking for a furry friend at all.But then she met Finn. Today，the 34-year-old actress，who’s known for films Mamma Mia，is a dog owner and a spokeswoman at the welfare organization Best Friends Animal Society.“I can’t imagine my life without him，” Seyfried says of 6.5-year-old Australian shepherd Finn，who is allowed on her U.S. set. If for some reason he can’t join Seyfried on location - like on a recent trip when she traveled from France to China，Seyfried requests from her dog sitter twice —daily videos of him.Now with a new video for Best Friends Animal Society，she calls herself Finn’s “stage mother.”Seyfried and Finn shot an ’80s-themed video for the 9000StepsChallenge，which asks animal owners to walk 9，000 steps with their pets on the ninth day of the month to raise awareness to the fact that more than 9，000 dogs and cats are euthanized (安乐死) in shelters each day because there’s not enough room.As for the video shoot，in which Seyfried and Finn walked the 9，000 steps - it was more exhausting than a long walk. Seyfried was Finn’s trainer on the shoot. She believes that instead of being Finn’s cp-star，she’ll go back to being BFFs.24. Why did Seyfried originally refuse a pet dog?A. She wasn’t not yet a spokeswoman.B. She wasn’t used to being with a dog.C. She was too busy to care for a dog.D. She had not enough room for a dog.25. W ho does the underlined word “him” in paragraph 3 refer to?A. Finn.B. Seyfried.C. The dog sitter.D. Finn’s best friend.26. Why did Seyfried shoot the video together with Finn?A. To show how deep she loves Finn.B. To train Finn to have a long walk.C. To take part in an animal cp-star show.D. To call on public attention to pets’ life.27. Which section of a newspaper is this text most likely from?A. NewsB. LifeC. EducationD. SportsCPinocchio may be ju st a children’s fairy tale，but Spanish scientists at the University of Granada recently investigated this so-called “Pinocchio effect” and found that our noses don’t grow when we tell a lie，but actually shrink a bit.Dr. Gómez Milán and his team developed a lie detector test that used thermography（体温计）to tell if people were lying，and found that whenever participants in their research were being untruthful，the temperature of the tip of their nose dropped up to 1.2℃，while the temperature of their forehead increased up to 1.5℃. Scientist also found that drop in temperature at nose level actually caused it to slightly shrink，although the difference is undetected by the human eye.“One has to think in order to lie，which rises the temperature of the forehead，” Dr. Gómez Milán explained the findings. “At the same time we feel anxious，which lowers the temperature of the nose.”For this study，researchers asked a number of 60 students to perform various tasks while their temperature is scanned by technology. One of these tasks required making a 3 to 4 minutes call to their parents or a friend and telling a significant lie. Participants had to make up the lie themselves during the call. Interestingly，this lie detector picked up the “Pinocchio effect”temperature difference in 80 percent of the test subjects，which is a better rate of success than that of any modern lie detector.“With this method we have achieved to increase accuracy”，said Dr. Gómez Milán，who added that law enforcement interviewers could one day combine other lie detection technology withthermal imaging to achieve better results.28. Why does the writer talk about Pinocchio in the first paragraph?A. To tell a fairy tale.B. To give an example.C. To talk about a scientist.D. To introduce the topic.29. What is “Pinocchio effect”?A. Our noses will grow when we tell a lie.B. Our noses will shrink when we tell a lie.C. The temperature of the forehead falls if we lie.D. The temperature of the student rises for anxiety.30. How did Dr. Gómez Milán feel about the lie detector?A. Doubtful.B. Surprised.C. Confident.D. Puzzled.31. What lesson can we learn from the text?A. A lie will travel very hard.B. Many ways to bring a liar to light.C. A lie never lives to be old.D. Once a liar always a liar.DEast Africa is experiencing the worst desert locust outbreak in decades. Climate events have accelerated breeding of the pest across the region，and with a sudden rise in the locust population expected in coming weeks，urgent actions and funds are needed to prevent a human crisis.Twenty million people in six of the eight East African countries are most affected by an ongoing desert locust outbreak at risk of serious food insecurity. Considered among the most destructive of moving pests，an adult locust can consume 2g of plants per day，affecting crops and grasslands. A group typically holds 20 to 150 million locusts per square kilometer and can move hundreds of kilometers per day，invading areas covering millions of square kilometers. An active group，therefore，can destroy crops and grasslands within a very short period of time.That global warming could increase the risk of desert locust crisis was proposed over ten years ago，and in February，the UN Secretary-General António Guterres stated that the current outbreak is linked to the effects of climate change: “warmer seas mean more perfect breeding ground for locusts”. The outbreak has its origins in 2018，when a series of windstorms in the Arabian Peninsula (阿拉伯半岛) enabled the warm and wet conditions the desert locust requires to breed and band undetected in remote regions. Though our focus here is migration west，dreadful outbreaks ofthe desert locust have been experienced to the east.The situation is going out of control. A rescue operation and financial support admit no delay. The Food and Agricultural Organization (FAO) can take out only US$138 million for rapid response and immediate action —controlling the spread of the desert locust and safeguarding livelihoods. They say the maths is clear: about half the funding (资助) is needed for supervision，ground and sky control，and uniting efforts; the other half is needed for livelihoods and food security of farmers. As for the huge gap，they have called on the international community to act now through funding. However，by the end of February，just US$69 million had been promised.This most alarming crisis has developed and is worsening in East Africa. The funds needed to control the situation become very difficult to achieve and the gap is a big concern.32. Why does the crisis happen in East Africa?A. There is a big population there.B. There are large deserts and grasslands.C. Africa lies west of Arabian Peninsula.D. Good climate for breeding plays a role.33. Why does the writer list those figures in Para 2?A. To warn of the terrible damage by locusts.B. To help us understand how locusts live.C. To show how many locusts there are now.D. To draw a picture of the present Africa.34. What can we infer from the text?A. The crisis is not noticed until recently.B. More fund is needed to prevent the crisis.C. The crisis has been the focus of the world.D. Locusts are all from the Arabian Peninsula.35. Which is the best title for the text?A. Killing locusts before too lateB. Global warming，a world problemC. Funding Gap for Locust CrisisD. Africa，a crisis-stricken place第二节（共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
广东省深圳市2020届普通高中高三年级第二次线上统一测试语文试题及答案word
2020 年深圳市普通高中高三年级第二次线上测试语文一、现代文阅读（36分）（一）论述类文本阅读（本题共3小题，9分）阅读下面的文字，完成1～3题。
在论辩说理中，很少有人能直接说服对立一方。
这并不表示他论证乏力，而是因为，一般来说，论辩式说理起到的是强化自己一方、而非软化对立一方的作用。
因此，对立的双方就有可能在辩论中越说越僵。
极端的越说越僵，这种情况在说理文化良好的社会中较少发生。
这是因为辩论者在辩论中，理是说给“第三方”听的，而不是说给对立方听的。
以第三方为说服对象，并由此来确定说理的主要构成要素，这便是英国哲学家图尔敏对公共说理的一大贡献。
在图尔敏之前，对说理结构的理解和分析是以形式逻辑为着眼点的。
图尔敏提出的说理分析模式却着眼于听众，具体而言，是那些立场中立、具有独立思考和判断能力的第三方听众。
例如，在法庭上，有争执的双方各自陈述自己的立场和理由，同时还就对方陈述中的具体环节和细节提出质疑。
各方这么做是为了说服中立的第三方——法官或陪审员。
图尔敏论证模式包括主张、保证、论据、支持、语气和反驳等要素。
它具有两个基本的认知特征：第一，说理中所有的主张、理由、中介保证、理由的理由、对保证的支持等等，都是可以由对方诘问和质疑的，说理一方必须为此做好准备。
第二，决定说理一方是否有理的是中立的第三方（法官和陪审员），不是自己一方或反对一方的“粉丝”。
在这两点上，图尔敏模式都不相同于形式逻辑论证。
形式逻辑的论证是以说理结构为准的，对于说理的具体听众以及他们的疑问并不关注。
然而，这些恰恰是图尔敏论证模式所关心的。
例如，打篮球的人个子都很高，张三打篮球，所以他个子一定很高。
从形式逻辑的论证来看，这个说法是可靠的。
但是，实际上张三个子不一定很高。
为什么呢？因为这个论证的大前提（打篮球的人个子都很高）本身并不可靠。
图尔敏论证模式要求辩论者在说理时，要站在第三方的立场仔细检查自己论证的每一个部分，并尽量事先估计到对立一方可能提出的反对理由。
2020届广东省深圳市普通高中高三毕业班下学期第二次线上统一测试数学(文)试题(解析版)
绝密★启用前广东省深圳市普通高中2020届高三毕业班下学期第二次线上统一测试数学(文)试题(解析版)本试卷共6页，23小题，满分150分.考试用时120分钟.一、选择题：本题共12小题，每小题5分，共60分.在每小题给出的四个选项中，只有一项是符合题目要求的.1.设集合{}12A x x =-<<，(){}lg 1B x y x ==-，则()R A B =（ ）A. [)1 2-，B. [)2 +∞，C. (]1,1-D. [)1 -+∞， 【答案】C【解析】【分析】由10x ->求出集合B ，然后求出其补集B R ，最后求交集.【详解】由10x ->得1x >，即{}1B x x =>， 所以{}1BR x x =≤，又因为{}12A x x =-<<则{}()11R A B x x ⋂=-<≤.故选：C.【点睛】本题考查了求对数型函数的定义域,集合的补集、交集运算,属于基础题.2.棣莫弗公式()cos sin cos sin nx i x nx i nx +=+（i 为虚数单位）是由法国数学家棣莫弗（1667-1754）发现的,根据棣莫弗公式可知,复数6cos sin 55i ππ⎛⎫+ ⎪⎝⎭在复平面内所对应的点位于（ ）A . 第一象限B. 第二象限C. 第三象限D. 第四象限 【答案】C【解析】【分析】 由题意666cos sin cos sin 5555i i ππππ⎛⎫+=+ ⎪⎝⎭,根据复数的几何意义结合6cos 05π<、6sin 05π<即可得解. 【详解】由题意666cos sin cos sin 5555i i ππππ⎛⎫+=+ ⎪⎝⎭, ∴该复数在复平面内所对应的点为66cos ,sin 55ππ⎛⎫ ⎪⎝⎭, 6cos 05π<,6sin 05π<,∴该复数在在复平面内所对应的点位于第三象限. 故选：C.【点睛】本题考查了新概念在复数中的应用,考查了复数的几何意义和三角函数的符号确定,属于基础题.3.已知点()3,1和()4,6-在直线320x y a -+=的两侧,则实数a 的取值范围是（ ）A. 724a -<<B. 7a =或24a =C. 7a <或24a >D. 247a -<<【答案】A【解析】【分析】由点与直线的位置关系,转化为不等式求解即可得解.。
广东省深圳市高三第二次线上统一测试(4月)理综
绝密★启用前试卷类型：A 2020年深圳市普通高中高三年级第二次线上统一测试理科综合能力测试试题注意事项：1.答卷前，考生务必将自己的学校、班级、姓名、考生号填写在答题卡指定位置。
2.选择题的答案填写或涂写方式，请按照学校使用的考试平台所需具体要求作答。
3.非选择题答案必须写在答题卡各题目指定区域内，写在非答题区域的答案无效。
4.考生必须保证纸质答题卡的整洁。
考试结束后，按照学校的具体要求提交答题卡。
一、选择题：本大题共13小题，每小题6分，共78分。
在每小题给出的四个选项中，只有一项是符合题目要求的。
1.在低温诱导植物染色体数目变化实验中，下列说法合理的是A.剪取0.5～1cm洋葱根尖放入4℃的低温环境中诱导C.材料固定后残留的卡诺氏液用95%的酒精冲洗2.20世纪60年代，医院开始用淀粉酶替代酸来分解淀粉。
下图为某同学探究不同pH条件下淀粉酶对淀粉的分解作用的实验结果。
下列说法不正确的是C.1h后若将pH为13的试管的pH调至7，则其淀粉量基本不变3.S型肺炎双球菌具有多糖类荚膜，R型肺炎双球菌则不具有，在含有R型活细菌的培养基中添加某些物质后进行培养，下列相应的培养结果，表述错误的是组别添加物具有荚膜的细菌A S型细菌的多糖类物质有B S型细菌DNA 有C S型细菌DNA的完全水解产物无D S型细菌的蛋白质无4.遗传信息传递方向可用中心法则表示。
下列叙述正确的是B.农田、人工林等地区的人工栽培种群由于人为因素常呈随机分布C.集群分布不利于个体之间的基因交流，降低了种群的遗传多样性D.环境资源分布不均匀、丰富与贫乏镶嵌是集群分布形成原因之一6.百日咳、白喉和破伤风是三种常见传染病，分别由三种致病菌导致。
我国政府在儿童中推广“百白破”三联体疫苗的免费接种，大大降低了发病率，接种后B.效应T细胞对疫苗进行摄取、处理和传递7.宋代张杲《医说》引《集验方》载：每每外出，用雄黄桐子大，在火中烧烟薰脚绷、草履、领袖间，以消毒灭菌，防止疫菌通过衣物的接触而传染。
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绝密★启用前
广东省深圳市普通高中
2020届高三毕业班第二次线上统一测试(二模)
理综-物理试题
2020年4月
注意事项：
1.答卷前，考生务必将自己的学校、班级、姓名、考生号填写在答题卡指定位置。
2.选择题的答案填写或涂写方式，请按照学校使用的考试平台所需具体要求作答。
3.非选择题答案必须写在答题卡各题目指定区域内，写在非答题区域的答案无效。
4.考生必须保证纸质答题卡的整洁。
考试结束后，按照学校的具体要求提交答题卡。
二、选择题：本题共8小题，每小题6分。
在每小题给出的四个选项中,第14～18题只有一项符合题目要求,第19～21题有多项符合题目要求。
全部选对的得6分,选对但不全的得3分,有选错的得0分。
14.我国新一代可控核聚变研究装置“中国环流器二号M ”(又被称为“人造太阳”)将在2020
年投入运行。
其所发生的可控核聚变方程是234112H H He X +→+,已知21H 、31H 、42He 和X
的质量分别为m 1、m 2、m 3和m 4,真空中的光速为c 。
下列说法正确的是
A.X 是质子
B.大亚湾核电站利用核聚变发电
C.该核反应所释放的核能为△E ＝( m 1＋m 2－m 3－m 4)c 2
D.21H 和31H 的结合能之和大于4
2He 的结合能
15.2020年10月13日将发生火星冲日现象,即火星、地球和太阳刚好在一条直线上,如图所示,已知火星轨道半径为地球轨道半径的1.5倍,地球和火星绕太阳运行的轨道都视为圆。
则
A.火星与地球绕太阳运行的线速度大小之比为2：3
B.火星与地球绕太阳运行的加速度大小之比为4：9
C.火星与地球的公转周期之比为3：2
D.2021年10月13日前有可能再次发生火星冲日现象
16.一个带负电的粒子从x＝0处由静止释放,仅受电场力作用,沿x轴正方向运动,加速度a随位置变化的关系如图所示,x2－x1＝x3－x2。
可以得出
A.从x1到x3过程中,电势先升高后降低
B.在x1和x3处,电场强度相同
C.粒子经x1和x3处,速度等大反向
D.粒子在x2处,电势能最大
17.户外野炊所用的便携式三脚架,由三根完全相同的轻杆通过铰链组合在一起,每根杆均可绕铰链自由转动。
如图所示,将三脚架静止放在水平地面上,吊锅通过细铁链挂在三脚架正中央,三根杆与竖直方向的夹角均相等。
若吊锅和细铁链的总质量为m,重力加速度为g,不计支架与铰链之间的摩擦,则
A.当每根杆与竖直方向的夹角为37°时,杆受到的压力大小为5
9
mg
B.当每根杆与竖直方向的夹角为37°时,杆对地面的摩擦力大小为1
4
mg
C.当每根杆与竖直方向的夹角均变大时,三根杆对铰链的作用力的合力变大
D.当每根杆与竖直方向的夹角均变大时,杆对地面的压力变大
18.如图所示,某时刻将质量为10kg的货物轻放在匀速运动的水平传送带最左端,当货物与传送带速度恰好相等时,传送带突然停止运动,货物最后停在传送带上。
货物与传送带间的动摩擦因数为0.5,货物在传送带上留下的划痕长为10cm,重力加速度取10m/s2。
则货物。