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成都市2018届高三一诊英语试题Word版含答案

成都市2018届高三一诊英语试题Word版含答案
成都市2018届高三一诊英语试题Word版含答案

四川省成都市2018届高三第一次诊断性检测

英语试题

第I卷(100分)

第一部分听力(共两节,满分30分)

做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。

第一节(共5小题;每小题1.5分,满分7.5分)

听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。

1. When will the speakers meet?

A. On Monday.

B. On Tuesday.

C. On Thursday.

2. What did the man do over the weekend?

A. He went hiking.

B. He went camping.

C. He went dancing.

3. What are the speakers talking about?

A. The woman’s trousers.

B. The woman’s shoes.

C. The woman’s socks.

4. What is the weather like on the wedding day?

A. Sunny.

B. Rainy.

C. Windy.

5. What does the woman think of her trip to Mexico?

A. Enjoyable.

B. Ordinary.

C. Terrible.

第二节(共15小题;每小题1.5分,满分22.5分)

听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟。听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。

听第6段材料,回答第6至7题。

6. What does Billy want to do?

A. Meet a lifeguard.

B. Go swimming.

C. Play outdoors.

7. What worries Billy’s mother most?

A. Billy’s loneliness.

B. Billy’s health.

C. Billy’s safety.

听第7段材料,回答第8至10题。

8. Where did the man leave his keys?

A. In his house.

B. In his car.

C. In his bag.

9. How did the man get in?

A. By breaking the lock.

B. By using a spare key.

C. By climbing in through a window.

10. What is the probable relationship between the two speakers?

A. A couple.

B. Neighbors.

C. Colleagues.

听第8段材料,回答第11至13题。

11. Why does the man spend less time playing games now?

A. He has eye problems.

B. He has no interest in it.

C. He can’t afford the time.

12. What is the woman’s favorite on the Internet?

A. Online games.

B. Social networking.

C. Videos.

13. What does the man think of chatting online?

A. Time-consuming.

B. Interesting.

C. Boring.

听第9段材料,回答第14至16题。

14. What local products does the woman like most?

A. Chinese paintings.

B. Silk scarves.

C. Chinese paper-cuts.

15. According to the man, what is the most common theme in Chinese paper-cuts?

A. Animals.

B. Flowers.

C. Chinese characters.

16. Why does the woman want to buy more paper-cuts?

A. To send them as gifts.

B. To decorate her home.

C. To teach her Chinese class.

听第10段材料,回答第17至20题。

17. What did the man use to do to celebrate the new year?

A. Play fireworks.

B. Watch a movie.

C. Have fun with friends.

18. What did the man and his friends eat on New Year’s Eve?

A. Tasty salads.

B. Chinese takeaways.

C. Junk food.

19. How does the man usually celebrate his New Year’s Eve now?

A. By having a big meal.

B. By doing nothing special.

C. By playing with his kids.

20. According to the man, why isn’t New Year’s Day a big celebration for him?

A. He has already grown up.

B. He thinks each day is a new start.

C. He prefers to go to bed early now.

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,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

A

I-HOUSE 2017?2018 DINING SERVICES NOTICE

I-House serves meals that international students can choose from. On holidays only one meal is served. Meals do not carry over from term to term. You have the option of purchasing extra meals through the Dining

Meal Cards — Dining Service operates on a computerized system. Your student ID or I-House Access Card will serve as your meal card and get coded in the computer system. NO MEALS SHALL BE PROVIDED WITHOUT PRESENTA TION OF A V ALID MEAL CARD OR CASH. If your card is damaged, you are responsible to replace your card and then contact Dining Service to have it coded again before entering the dining area.

Removal of Food or Supplies—Removing food or supplies from the Dining Facility, without

permission, may result in additional charges to your Room and Board to pay the costs or any related expenses.

Special Diets—Dining Service provides a variety of meal options, including religious selections. Although not guaranteed, special diets can usually be accommodated within our ability. You may arrange a meeting with our dining staff to discuss any special diet concerns or food allergies by e-mailing to .

Physical Disabilities—The International House Dining Facility is accessible to all disabled residents. However, residents must be accompanied by their personal nurses for meal assistance. They will receive a meal free of charge at the time assistance is given.

21. How many meals are usually served every week?

A. 17.

B. 18.

C. 19.

D. 20.

22. What can you do if your meal card doesn’t work properly?

A. Pay in cash.

B. Get food free.

C. Have it repaired.

D. Get it coded.

23. What can we learn from the passage?

A. The service there meets different needs.

B. The food in service is delicious and safe.

C. Removing food will result in extra charges.

D. The dining staff are professional and polite.

B

For the brave in the armed forces, being sent away from home for months at a time is just part of the duty. However, it’s never an easy one to perform especially for those with children. So when I found out I was going to be stationed in South Korea for a year, I was nervous about how my five children, particularly my eldest daughter Abigail, would take the news since it meant I wouldn’t be home to see her graduate from high school.

Incredibly, Abigail told me not to worry and even suggested we live stream the event among family members when I leaked the news. “We’ve been lucky you haven’t had to be sent abroad yet. Anyway we can get connected through the Internet. See me on your phone on my spot. ” Abigail said. She stepped into many of my roles when I was gone. I wanted to find a way to thank her and show her how proud I was of her. I started planning t he special surprise when my request to return home a few weeks early to attend Abigail’s graduation ceremony was approved.

When my time in South Korea finally came to an end, I flew home, rented a car, and stayed in a hotel. And on Abigail’s graduation day, I hid in an office behind the stage waiting until I heard my daughter’s name called. I just kept thinking “Don’t cry. Don’t trip in your heels. Don’t fall over.” At last! Abigail was up on stage. I slipped up behind her, whispered in her ear, and around she turned! “I was just thinking, like, ‘You aren’t supposed to be here. What? What? How?’ It was the biggest shock... I’m pretty sure my dad made people he didn’t even know cry. Emotional for everyone,” Abigail cried.

You know what followed: Embraces, kis ses, tears, laughs, flowers, wishes... ; aren’t they what a family have in store?

24. What worried the author most?

A. His duty in South Korea.

B. His five children’s safety.

C. His eldest daughter’s study.

D. His absence from a big event.

25. W hat is the probable meaning of the underlined phrase “live stream”?

A. Plan.

B. Celebrate.

C. Prepare.

D. Broadcast.

26. How did Abigail feel when meeting her father?

A. Embarrassed.

B. Overjoyed.

C. Nervous.

D. Satisfied.

27. What does the author mainly intend to express by telling the story?

A. A soldier, s personal sacrifice.

B. A father’s love for his family.

C. The meaning of family bond.

D. The way to plan a big surprise.

C

Food blogs, celebrities, and nutritionists all advocate the benefits of eating organic (有机的) fruits and vegetables. But a new study published in Science Advances paints a more complex picture. While organic produce is likely slightly healthier to eat and, in some ways, more sustainable to grow, there are also downsides.

Organic fruits and vegetables typically cost more than conventional ones. To get a certificate as organic, farmers must meet specific criteria, including growing produce without the use of genetic engineering and chemical inputs. Without these methods, the growing process typically requires more labor, time, and money, a cost that is passed down to consumers.

It’s true that in many ways, organic is more sustainable than conventional farming. But when it comes to environmental concerns such as greenhouse gas output and water loss, the comparison gets complex. Organic farms produce less gas output per acreage. However, because they are barred from using genetic engineering, pesticides (杀虫剂), and other methods that increase efficiency (效率), organic farms also produce an estimated 19% to 25% less yield than conventional farms. While there isn’t a whole lot research on the topic, the few studies that do exist suggest green gas output and water loss might actually be higher on organic farms, on a per unit basis, says study author Verena Seurfert.

In addition, while organic produce is likely more nutritious than conventional fruit and vegetables, there’s not a lot of evidence to support the claim that these often slight differences influence consumer health. The same is true for pesticide remainder. In developed countries, where pesticide use is tightly regulated, there’s no scientific consensus on how these often slight differences influence human health.

Still, Seurfert stresses that if you can afford to eat organic, you should do so. Organic farms provide safer work environments for workers, plus they support great biodiversity. The real takeaway from her study is not that organic is bad but that the practice needs more study to increase yield without lowering sustainability.

But if you can’t afford to buy organic produce, don’t stress too much, particularly from a nutritional perspective.

28. What does the underlined word “downsides” in Paragraph 1 most probably mean?

A. Dangers.

B. Drawbacks.

C. Benefits.

D. Differences.

29. Which key factor makes it hard to compare organic farming and conventional farming when it comes to environmental concerns?

A. The yield.

B. The price.

C. The water loss.

D. The labor.

30. Which of the following will the author most probably agree with?

A. Farmers, work environment should be improved.

B. Organic produce should be made more efficiently.

C. It isn’t wise for consumers to buy organic products.

D. Pesticide remainder does no harm to people’s health.

31. In the author, s opinion, why should we support organic produce?

A. It’s environmentally friendly.

B. It’s more nutritious.

C. It helps keep the variety of plants.

D. It’s safer for consumers.

D

Every ocean lover knows the dangers of getting caught in a rip current (离岸流). Experienced swimmers know it is relatively easy to escape the narrow channel of the fast moving water by floating and

allowing it to drag you further into the ocean or by swimming alongside the shore. However, inexperienced beachgoers often panic, and try to swim to land, placing themselves at risk of drowning due to tiredness. According to the US National Ocean Service, the currents kill about 100 Americans each year and account for 80% of all lifeguard rescues. These scary statistics may soon be a thing of the past, thanks to Clever Girl, a smart buoy (浮标) that warns swimmers of the presence of deadly rip currents.

The smart device is the brainchild of Australian teenager Maddison King, who created Clever Girl as a project for her Grade 12 Design and Technology class. The 18-year-old, who works as a lifeguard during her spare time, came up with the brilliant idea after discovering that most children were unable to detect rip currents.

The basketball-sized plastic buoy, which can be attached to a chain of similar devices or the ocean floor, is fitted with a small propeller (螺旋桨). When the water travels at speeds of over 70 centimeters per second, it spins the propeller fast enough to power the light atop the buoy, warning swimmers to stay clear of the area.

Though it sounds simple enough, the youngster had to overcome numerous design challenges. For instance, she picked a red light since it is easy to see in the bright sunlight and also because the color serves as a universal warni ng sign for tourists that do not speak the local language. The device’s smooth surface and high handles ensure swimmers do not get hurt, while the black, white, and red striped underside, keeps sharks and other animals at bay.

Future versions might include something like a warning siren, which would provide sound warnings of rip currents. Besides, the present model cost about $ 300 to make. “That’s beyond my purse.” she laughs, “the cost has to be cut down.”

32. Which of the following is the right way to escape the rip current?

A. Waiting for rescues.

B. Swimming to the shore.

C. Moving fast in the water.

D. Floating with the water.

33. Why did Maddison decide to invent Clever Girl?

A. She wanted to challenge her creativity.

B. She was motivated by her working experience.

C. She was supposed to complete it for her class.

D. She was scared by the statistics of the government.

34. What do we know about the present version of Clever Girl?

A. It’s not available on the market.

B. It’s quite attr active for sea animals.

C. It’s based on a complex theory.

D. It can give warnings in different ways.

35. What could the future version of Clever Girl be like?

A. Safer and greener.

B. Cheaper and safer.

C. Greener and more effective.

D. Cheaper and more effective.

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,选项中有两项为多余选项。

Last week the electricity in my flat went out. 36 My typical evening is spent watching TV and scrolling (滚动) through social media. Tonight this wasn’t possible. My roommate and I weren’t prepared with candles and matches. We just rely on electricity.

So for me it was an early night. 37 That night, losing our electricity felt like losing a basic necessity, as basic as running water. But really, electricity is a luxury that we’ve grown to take for granted. I use electricity all the time, even when it’s not really necessary.

38 And as I’m writing this, I have my lights on, even in the middle of the day when I don’t really need them.

39 It contributes to global warming. It is harming our environment and we need to do what we can to stop it. Not only that, but if we continue to use the same large amount of energy, we will soon run out of it.

How would we survive in a world without electricity? Our daily lives go around it. We wouldn’t be able to function. 40 So, shouldn’t we start preparing for it now? Cutting down on our use of electricity would save energy resources so that they could last for longer. And if everyone does it, we can make a big difference.

A. Yet we know one day we will run out of it.

B. Our over-use of electricity is a big problem.

C. This left me in complete darkness the whole night.

D. It is a real problem to cut down on the use of electricity.

E. I know for sure I could cut down on my use of electricity.

F. I couldn’t help but think, do we rely too much on electricity?

G. I turn on the TV in the background even when I’m not watching it.

第三部分英语知识运用(共两节,满分45分)

第一节完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

When Heather McHugh, a poet, won a $ 500,000 “genius grant” from the MacArthur Foundation, she didn’t buy a luxurious car or fly to Paris.41 , she put the money in the bank and 42 writing poems.

In 2011, she finally 43 what to do with it. That year, Heather’s godson and his wife 44 their first child, a beautiful baby girl but severely disabled. “I saw how people’s 45 can change overnight. I started thinking about people in a 46 situation,” says Heather.

She 47 there were millions of caregivers taking care of the chronically (慢性的) ill or disabled. So in 2012, Heather 48 a nonprofit organization offering a seven-day vacation, with all 49 paid, to people who have been caregivers for at least ten years.

Tricia was one of the first caregivers to go on vacation. When Tricia got a call saying she was offered a 50 vacation, she couldn’t 51 it; disbelief even 52 her concern about leaving her two kids.

Tricia went, and her favorite parts of the trip were being able to enjoy the 53 things. “I got to eat hot food hot and cold food cold. I could go to bed when I wanted to and wake up whenever I chose to,” says Tricia. She was afraid the 54 would return when the 55 was over, but to her surprise, it hasn’t been back since.

Heather says Tricia’s 56 resembles those she helps every year. “Before the vacation they are so 57 , and the 58 is so amazing. They reflect and relax. It feels 59 like another world and gives them a chance to see their lives from another 60 ,” she adds.

41. A. However B. Therefore C. Instead D. Besides

42. A. continued B. quitted C. practiced D. started

43. A. thought over B. wondered C. talked about D. decided

44. A. held B. welcomed C. lost D. saved

45. A. feelings B. future C. lives D. routine

46. A. different B. similar C. worse D. better

47. A. discovered B. claimed C. admitted D. felt

48. A. donated B. found C. visited D. formed

49. A. tax B. salary C. expenses D. rent

50. A. free B. caring C. short D. long

51. A. believe B. take C. refuse D. enjoy

52. A. woke B. defeated C. showed D. moved

53. A. wonderful B. delicious C. peaceful D. simple

54. A. heaviness B. pain C. sadness D. disbelief

55. A. entertainment B. dream C. vacation D. freedom

56. A. comment B. story C. surprise D. fortune

57. A. worried B. confused C. unexpected D. stressed

58. A. award B. change C. scenery D. accomodation

59. A. slightly B. interestingly C. magically D. mostly

60. A. place B. situation C. height D. angle

第II卷(50分)

注意事项:用0.5毫米黑色笔迹的签字笔将答案写在答题卡上。写在本试卷上无效。

第三部分英语知识运用

第二节(共10小题;每小题1.5分,满分15分)

阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

Can knots (结) be a form of art? It is in China. There is a long history of using knots for decoration on clothing or to hang from the ceiling or on a wall. Skilled knot 61 (art) make complex knots that you can take back with you as souvenirs. They have a long history and a symbolic meaning even today.

People may have 62 (initial) made them to record information and convey messages 63 people started to write. One-hundred-thousand-year-old tools have been discovered that were probably used 64 (tie) and untie knots, and there is a 65 (refer) to knots in ancient literature. But it isn’t known when they started to be used symbolically or woven for art.

It is known that they 66 (use) for artistic decoration and to symbolize and express thoughts and feelings in the Tang Dynasty era. The Tang Empire was a large one 67 (cover) most of the regions of modern China, and the 68 (tradition) art form was carried on by succeeding generations 69 part of their culture.

Even today, Chinese knots are rich in symbolic meaning, and they therefore hold emotional value when given as gifts 70 passed down through families.

第四部分写作(共两节,满分35分)

第一节短文改错(共10小题;每小题1分,满分10分)

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1.每处错误及其修改均仅限一词;

2.只允许修改10处,多者(从第11处起)不计分。

One of the biggest cultural difference I noticed while in London was why the people of London conducted themselves. It seemed that they took many pride in their country. I also notice that they always seemed to dress well, and always had their hair and makeup do. I don’t think I saw one person in sweat pants during their whole trip! At times I found it harder to ma ke the change being in the US to London. I’ve found out that Americans are loud! Even at the pubs and clubs in London, I felt like that we were a loudest ones!

第二节书面表达(满分25分)

假定你是李华。你的美国朋友Jack发来邮件,想了解中国茶文化常识。现在,请你给他回邮件,内容包括:

1.中国茶文化简介;

2.饮茶的好处;

3.邀请他来中国体验茶文化。

注意:1.词数100左右;

2.邮件开头和结尾已为你写好,不计入总词数;

3.可适当增加细节,以使行文连贯。

Hi, Jack!

So glad to hear from you!

Yours,

Li Hua 四川省成都市2018届高三第一次诊断性检测

英语参考答案

第一部分听力(满分30分)

1~5 CBBAC 6~10 BCACA 11~15 ABABA 16~20 ACCBB

第二部分阅读理解(满分40分)

21?25CAADD 26?30 BCBAB 31~35 CDBAD 36?40 CFGBA

第三部分

第一节完形填空(满分30分)

41?45 CADBC 46?50 BADCA 51?55 ABDAC 56?60 BDBCD

第二节(满分15分)

61. artists 62. initially 63. before 64. to tie 65. reference

66. were used 67. covering 68. traditional 69. as 70. or

第四部分

第一节短文改错(满分10分)

One of the biggest cultural difference I noticed while in London was why the people of London conducted

differences how

themselves. It seemed that they took many pride in their country. I also notice that they always seemed to dress well,

much noticed

and always had their hair and makeup do. I don’t think I saw one person in sweat pants during their whole trip! At

done my

times I found it harder to make the change ∧ bein g in the US to London. I’ve found out that Americans are loud!

hard from

Even at the pubs and clubs in London, I felt like that we were a loudest ones!

删除like the

第二节书面表达(满分25分)

One possible version

Hi, Jack !

So glad to hear from you! And now I’m very happy to share something about Chinese tea culture in reply to your last e-mail.

Chinese tea culture started about 4000 years ago and drinking tea gradually became an amazing tradition. In China, people drink tea almost everywhere and in most of their spare time.

Some Chinese believe that tea benefits people’s health a lot. Drinking a cup of tea makes people relaxed and refreshed. Others treat guests or friends with tea drinking in social communications.

Probably, you’ve got a general picture about tea culture after my introduction. Then, how about coming to China to experience it yourself? Maybe, you will fall in love with it.

(108 words)

Yours,

Li Hua

高三一诊模拟考试 理科综合试卷 第Ⅰ卷 本卷共21小题,每小题6分,共126分 可能用到的原子量:H—1 O—16 N—14 C—12 Na—23 Fe—56 Ba—137 S—32 一、选择题(本题包括13小题,每小题只有一个选项符合题意) 1.甲状腺细胞可以将氨基酸和碘合成甲状腺球蛋白,并且将甲状腺球蛋白分泌到细胞外,其过程如下图所示。下列叙述错误的是() A.若含18O的氨基酸在甲状腺细胞内的代谢过程中产生了H218O,那么水中的18O最可能来自于氨基酸的-COOH B.细胞内的碘浓度远远高于血浆中的碘浓度,这表明a是主动运输过程 C.与c过程有关的细胞器是内质网、高尔基体、线粒体 D.上图中③结构是将氨基酸组装成蛋白质的主要场所 2.某同学看到如下表所示的血液检查结果后,产生以下想法。其中错误的是() A.谷丙转氨酶较低,可能有肝细胞病变B.尿素氮含量正常,目前肾脏比较健康C.血糖过高,肯定会出现尿糖D.血脂偏高,应少吃油腻食物 3.以下关于动植物个体发育的叙述正确的是() A.被子植物种子形成过程中,球状胚体的细胞不进行光合作用是因为缺乏相应基因B.在自然状态下,豌豆的豆荚和其内种子胚的基因组成是不一致的 C.在原肠胚发育为幼体的过程中,子代细胞内的DNA和RNA都与亲代细胞保持相同D.甲状腺激素和生长激素在动物的胚后发育中起着很重要的作用 4.取某种植物幼茎等长切段若干(无芽无叶)均分为四组。a组浸泡 在蒸馏水中,其他三组分别放入不同浓度的生长素溶液中(其中有高 浓度、低浓度和最适浓度),培养一段时间后测量并记录各切段的长度, 实验重复两次进行。结果如下图所示,下列说法不正确的是() A.实验前应将切段放入蒸馏水中浸泡以消除切段内原有激素的影响 B.实验结果说明3种浓度激素均能促进切段的伸长

成都市高2020届高三一诊模拟试题(2) 数学(理科) 一、选择题:本题共12小题,每小题5分,共60分. 1.若复数为纯虚数,则实数a=() A.﹣2 B.﹣1 C.1 D.2 2.已知全集U=R,A={x|x2﹣3x﹣4>0},B={x|﹣2≤x≤2},则如图所示的阴影部分所表示的集合为()A.{x|﹣2≤x<4} B.{x|x≤2或x≥4}C.{x|﹣2≤x≤﹣1} D.{x|﹣1≤x≤2} 3.根据下面的算法语句,当输入x为60时,输出y的值为() A.25 B.30 C.31 D.61 4.已知直线ax+by+c=0与圆O:x2+y2=1相交于A,B两点,且|AB|,则在上的投影为()A.B.C.D.0 5.已知a,b,c,d为实数,则“a>b且c>d”是“ac+bd>bc+ad”的() A.充分不必要条件B.必要不充分条件C.充要条件D.既不充分也不必要条件 6.已知m和n是两条不同的直线,α和β是两个不重合的平面,那么下面给出的条件中一定能推出m⊥β的是() A.α⊥β且m⊥αB.α⊥β且m∥αC.m∥n且n⊥β D.m⊥n且n∥β 7.函数f(x)的图象大致为() 8.已知等比数列{a n}中,a2=1,则其前3项的和S3的取值范围是()

A.(﹣∞,﹣1] B.(﹣∞,0)∪(1,+∞)C.[3,+∞)D.(﹣∞,﹣1]∪[3,+∞) 9.如图,在正方体ABC的﹣A1B1C1D1中,点P是线段A1C1上的动点,则三棱锥P﹣BCD的俯视图与正视图面积之比的最大值为() A.1 B.C.D.2 10.将标号为1,2,3,4,5,6的6个小球放入3个不同的盒子中.若每个盒子放2个,其中标号为1,2的小球放入同一盒子中,则不同的方法共有() A.12种B.16种C.18种D.36种 11.若函数f(x)=cos2x﹣a sin2x的图象关于直线x轴对称,则函数y cos(x)+f(x)的最小值为() A.﹣2B.C.0 D. 12.已知f(x),> ,< ,若函数y=f(x)﹣m(2x﹣1)有两个零点,则实数m的取值范围是() A.(﹣∞,812)∪(2,+∞)B.(4, C.(﹣∞,46)∪(1,+∞)D.(﹣∞,22)∪(1,+∞) 二、填空题:本题共4小题,每小题5分,共20分. 13.在数列{a n}中,a1=2,a n+1=a n+ln(1),则a5等于. 14.如果()n的展开式中含有常数项,则正整数n的最小值是. 15.已知抛物线C:y2=2px(p>0)的焦点为F,P(1,y0)是抛物线上一点,过点P向抛物线C的准线引垂线,垂足为D,若△PDF为等边三角形,则p=. 16.在平面四边形ABCD中,△ABC是边长为2的等边三角形,△ADC是以AC为斜边的等腰直角三角形,以AC为折痕把△ADC折起,当DA⊥AB时,四面体D﹣ABC的外接球的体积为. 三、解答题:共70分.

2018四川省成都一诊物理试题及参考答案 二、选择题:本大题共8小题,每小题6分。在每小题给出的四个选项中,第14~17题只有一项是符合题目要求,第18~21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。 14.2017 年11月5 日,我国用长征火箭成功发射了两颗北斗三号组网卫星(如图所示),开启了北斗卫星导航系统全球组网的新时代。下列关于火箭在竖直方向加速起飞阶段的说法,正确的是 A.火箭只受到重力和空气阻力的作用 B.火箭喷出的热气流对火箭的作用力与火箭对热气流的作用力大小相等 C.火箭处于失重状态 D.保温泡沫塑料从箭壳上自行脱落后,相对地面由静止下落 15.图中实线是某电场中一簇未标明方向的电场线,虚线是一带电粒子仅在电场力作用下通过该区域时的运动轨迹,a、b 是轨迹上的两点。根据此图不能作出判断的是 A. a、b 两点中,哪点的电势较高 B. a、b 两点中,哪点的电场强度较大 C. 带电粒子在a、b 两点的加速度哪点较大 D. 带电粒子在a、b 两点的电势能哪点较大 16.如图甲所示,四根等长的缆绳一端悬于起重机的吊钩上,另一端分别系在一个正方形的框架上,框架下面悬吊着重物,起重机将重物以0.5m/s的速度沿竖直方向匀速向上吊起。若起重机的输出功率为20kW,每根缆绳与竖直方向的夹角均为370(如图乙所示),忽略吊钩、框架及绳重,不计一切摩擦,sin370-=0.6,cos370=0.8。则悬于吊钩的每根缆绳的拉力大小为 A.5.0X104N B.4.0X104N C.1.25X104N D.1.0X104N 17.2016 年8 月16 日,我国成功发射世界首颗量子科学实验卫星“墨子号”,该卫星的发射将使我国在国际上率先实现高速星地量子通信,初步构建量子通信网络。“墨子号”卫星的质量为m(约640kg),运行在高度为h(约500km)的极地轨道上,假定该卫星的轨道是圆,地球表面的重力加速度为g,地球半径为R。则关于运行在轨道上的该卫星,下列说法中正确的是 A.运行的速度大小为 B.运行的向心加速度大小为g C.运行的周期为 D.运行的动能为 18.如图甲所示,倾角0=300的足够长固定光滑斜面上,用平行于斜面的轻弹簧拉着质量=1kg的物体沿斜面向上运动。已知物体在t=1s到t=3s这段时间的v-t 图像如图乙所示,弹簧的劲度系数k=200N/m,重力加速度g 取10 m/s2。则在该段时间内 A.物体的加速度大小为2m/s2 B.弹簧的伸长量为3 cm C.弹簧的弹力做功为30J D.物体的重力势能增加36J 19.如图所示的电路中,电源电动势E=4V,内阻r=1Ω,定值电阻R o=1Ω,R 为滑动变阻器,电容器的电容C=40μF。闭合开关S,下列说法中正确的是 A.将R 的阻值调至2Ω时,电容器的电荷量为8X10-5C B.将R 的阻值调至2Ω时,滑动变阻器的功率为最大值 C.将R 的阻值调至2Ω时,电源的输出功率为最大值

高考数学精品复习资料 2019.5 四川省成都市高三一诊模拟考试 文科数学试题 (考试时间: 12月27日 总分:150分) 一、选择题(每小题5分,共50分) 1.不等式 2 23 x x -≤+的解集是( ) A (,8](3,)-∞-?-+∞ B (,8][3,)-∞-?-+∞ C .[3,2]- D (3,2]- 2.若复数 (,i 为虚数单位)是纯虚数,则实数a 的值为( ) A -2 B 4 C 6 D -6 3.公差不为零的等差数列第2,3,6项构成等比数列,则这三项的公比为( ) A .1 B .2 C .3 D .4 4.已知平面向量a r ,b r 满足||1,||2a b ==r r ,a r 与b r 的夹角为60?,则“m=1”是“()a mb a -⊥r r r ” 的( ) A .充分不必要条件 B .必要不充分条件 C .充要条件 D .既不充分也不必要条件 5.关于命题p :A φφ?=,命题q :A A φ=,则下列说法正确的是( ) A .()p q ?∨为假 B .()()p q ?∧?为真 C .()()p q ?∨?为假 D .()p q ?∧为真 6.设函数)(|,3sin |3sin )(x f x x x f 则+=为 ( ) A .周期函数,最小正周期为 23 π B .周期函数,最小正周期为 3 π C .周期函数,最小正周期为π2 D .非周期函数 7.给出下面类比推理命题(其中Q 为有理数集,R 为实数集,C 为复数集):( ) ①“若a ,b ∈R ,则a -b =0?a =b ”类比推出“若a ,b ∈C ,则a -b =0?a =b ”;

成都七中高2018 届一诊模拟理综物理试卷 二.选择题:本题共8小题,每小题6分,共48 分。在每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.将一物块分成相等的A、B 两部分靠在一起,下端放置在地面上,上端用绳子拴在天花板,绳子 处于竖直伸直状态,整个装置静止。则() A.绳子上拉力一定为零B.地面受的压力可能为零C.地 面与物体B间可能存在摩擦力D.A、B 之间可能存在摩擦力 15.用一竖直向上的拉力将原来在地面上静止的重物向上提起,重物由地面运动至最高点的过程中,v-t 图像如图所示,以下判断正确的是( ) A.前3 s 内拉力功率恒定 B.最后2 s 内货物处于超重状态 C.前3 s 内与最后2 s 内货物的平均速度相同 D.最后2s 运动过程中,货物的机械能减小 16.如图所示,A 为电磁铁,C 为胶木秤盘,A 和C(包括支架)的总重量M,B 为铁片,质量为m,整个装置用轻绳悬于O点,当电磁铁通电,铁片被吸引上升的过 程中,轻绳上拉力() A.F=mg B.F >(M+m)g C.F=(M+m)g D.Mg

2017成都市物理一诊试题及答案 14.关于在竖直面内匀速转动的摩天轮(如图)舱内的游客,下列说法正确的是 A .游客在最高点处于失重状态 B .游客在最高点处于超重状态 C .游客在最低点处于失重状态 D .游客始终处于平衡状态 15.质量为m 的物体P 置于倾角为θ1,的固定光滑斜面上,轻细绳跨过光滑定滑轮 分别连着P 与小车,P 与滑轮间的细绳平行于斜面,小车以速率v 水平向右做匀速直线运动。当小车与滑轮间的细绳和水平方向成夹角θ 2时(如图),下列判断正确的是 A .P 的速率为v B .P 的速率为v cos θ2 C .绳的拉力等于mg sin θ1 D .绳的拉力小于mg sin θ1 16.如图所示,E 为内阻不计的电源,MN 为同种材料制成的粗细均匀的长电阻丝,C 为电容器。当滑动触头P 以恒定速率从左向右匀速滑动时,关于电流计A 的读数情况及通过A 的电流方向,下列说法正确的是 A .读数逐渐变小,通过A 的电流方向向左 B .读数逐渐变大,通过A 的电流方向向右 C .读数稳定,通过A 的电流方向向右 D .读数稳定,通过A 的电流方向向左 17.如图所示,小车静止在光滑水平面上,AB 是小车内半圆弧轨道的水平直径,现将一小球从距A 点正上方h 高处由静止释放,小球由A 点沿切线方向经半圆轨道后从B 点冲出,在空中能上升的最大高度为0.8 h ,不计空气阻力。下列说法正确的是 A .在相互作用过程中,小球和小车组成的系统动量守恒 B .小球离开小车后做竖直上抛运动 C .小球离开小车后做斜上抛运动 D .小球第二次冲出轨道后在空中能上升的最大高度为0.6 h 18.如图所示,竖直固定的光滑绝缘细杆上O 点套有一个电荷量为–q (q >0)的小环,在杆的 左侧固定一个电荷量为Q (Q >0)的点电荷,杆上a 、b 两点与Q 正好构成等边三角形,c 是ab 的中点。 使小环从0点无初速释放,小环通过a 点的速率为v 。若已知ab =Oa =L ,静电力常量为k ,重 力加速度为g 。则 A .在a 点,小环所受弹力大小为2 kQq l B .在c 点,小环的动能最大 C .在c 点,小环的电势能最大 D .在b 19.如图所示,A 、B 、C 、D 、 E 、 F 为真空中正六边形的六个顶点,O 为正六边形中心,在A 、B 、C 三点分别固定电荷量为q 、–q 、q (q >0)的三个点电荷,取无穷远处电势为零。则下列 说法正确的是 A .O 点场强为零 B .O 点电势为零 C . D 点和F 点场强相同 D .D 点和F 点电势相同 20.近年来,我国航天与深潜事业的发展交相辉映,“可上九天揽月,可下五洋捉 鳖”已不再是梦想。若如图所示处于393 km 高空圆轨道上的“神舟十一”号的向心加速度为a 1、转动角速度为ω1;处于7062 m 深海处随地球自转的“蛟龙”号的向心加速度为a 2、转动角速度为ω2;地球表面的重力加速度为g 。则下列结论正确的是 A .ω1=ω2 B .ω1>ω2 C .a 1a 1>a 2

2017年四川省成都市高考数学一诊试卷(理科)(附详细解析)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.若全集U=R,集合A={x|x2﹣x﹣2>0},则? U A=() A.(﹣1,2)B.(﹣2,1)C.[﹣1,2] D.[﹣2,1] 2.命题“若a>b,则a+c>b+c”的否命题是() A.若a≤b,则a+c≤b+c B.若a+c≤b+c,则a≤b C.若a+c>b+c,则a>b D.若a>b,则a+c≤b+c 3.执行如图所示的程序框图,如果输出的结果为0,那么输入的x为() A.B.﹣1或1 C.﹣l D.l 4.已知双曲线的左,右焦点分别为F 1,F 2 ,双曲线上一点P 满足PF 2⊥x轴,若|F 1 F 2 |=12,|PF 2 |=5,则该双曲线的离心率为() A.B.C.D.3 5.已知α为第二象限角.且sin2α=﹣,则cosα﹣sinα的值为() A.B.﹣C.D.﹣ 6.(x+1)5(x﹣2)的展开式中x2的系数为() A.25 B.5 C.﹣15 D.﹣20 7.如图,网格纸上小正方形的边长为1,粗实线画出的是某四棱锥的三视图,则该四棱锥的外接球的表面积为()

A .136π B .34π C .25π D .18π 8.将函数f (x )=sin2x+cos2x 图象上所有点的横坐标伸长到原来的2倍(纵 坐标不变),再将图象上所有点向右平移 个单位长度,得到函数g (x )的图 象,则g (x )图象的一条对称轴方程是( ) A .x=一 B .x= C .x= D .x= 9.在直三棱柱ABC ﹣A 1B l C 1中,平面α与棱AB ,AC ,A 1C 1,A 1B 1分别交于点E ,F ,G ,H ,且直线AA 1∥平面α.有下列三个命题:①四边形EFGH 是平行四边形;②平面α∥平面BCC 1B 1;③平面α⊥平面BCFE .其中正确的命题有( ) A .①② B .②③ C .①③ D .①②③ 10.已知A ,B 是圆O :x 2+y 2=4上的两个动点,||=2, = ﹣ ,若M 是线段AB 的中点,则? 的值为( ) A .3 B .2 C .2 D .﹣3 11.已知函数f (x )是定义在R 上的偶函数,且f (﹣x ﹣1)=f (x ﹣1),当x ∈[﹣1,0]时,f (x )=﹣x 3,则关于x 的方程f (x )=|cosπx |在[﹣,]上的所有实数解之和为( ) A .﹣7 B .﹣6 C .﹣3 D .﹣1 12.已知曲线C 1:y 2=tx (y >0,t >0)在点M (,2)处的切线与曲线C 2:y=e x+1 ﹣1也相切,则tln 的值为( ) A .4e 2 B .8e C .2 D .8 二、填空题:本大题共4小题,每小题5分,共20分. 13.若复数z= (其中a ∈R ,i 为虚数单位)的虚部为﹣1,则a= . 14.我国南北朝时代的数学家祖暅提出体积的计算原理(祖暅原理):“幂势既

理科数学 第I卷(选择题,共60分) 、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?设全集U R,集合A x x 2 ,B x x 1 ,则O J(AUB) A. 2,1 B.( 2, 1) C.,2 U 1, D.( 2,1) 2 在复平面内对应的点位于 2.复数z ---------- 1 i A.第一象限 B. 第二象限 C.第三象限 D.第四象限 3?空气质量指数AQI是检测空气质量的重要参数,其数值越大说明空 气污染状况越严重,空气质量越差?某地环保部门统计了该地区12月 1日至12月24日连续24天空气质量指数AQI,根据得到的数据绘制出如 图所示的折线图?则下列说法错误.的是 A. 该地区在12月2日空气质量最好 B. 该地区在12月24日空气质量最差 C. 该地区从12月7日到12月12日AQI持续增大 D. 该地区的空气质量指数AQI与日期成负相关 4.已知锐角ABC的三个内角分别为代B,C,则“ sinA>sinB”是“ tanA>tanB ”的 A.充分不必要条件 B.必要不充分条件

C.充要条件 D.既不充分也不必要条件 5. “更相减损术”是我国古代数学名著《九章算术》中的算法案例,其对应的程序框图如图所示.若输入的x,y,k的值分别为4, 6, 1,则输出的k的值为 A.2 B.3 C.4 6.若关于 2 x的不等式x2ax 1 0在 围为 A.(0,) B.1, C. 1,1 D. 0, D.5 0,+ 上恒成立,则实数a的取值范

6若关于x 的不等式x 2 2ax 1 0在0, 上恒成立,则实数a 的取值范围为 8?已知sin( 6 \ 3 (。2),则 ) 5, cos 的值为 4.3 3 4 3 3 4 3.3 3、3 4 A. B.- c.- D.F 10 10 10 10 9 .在三棱锥P ABC 中,已知PA 底面 ABC , BAC 120 ,PA AB AC 2.若该三棱锥的顶点都在同 一个球面上,则该球的表面积为 A.10,3 B.18 C.20 D.9,3 正确的是 (A)(0,) (B) 1, (C) 1,1 (D) 0, 2 x 7.如图,已知双曲线 E :飞 a 1( a 0,b 0),长方形 ABCD 的顶点A , 5 B 分别为双曲线E 的左,右焦点,且点C,D 在双曲线E 上?若AB 6,B C 二, 则此双曲线的离心率为 B. 8.如图已知双曲线 2 b 7 1( a b 0,b 0),长方形ABCD 的顶点A, B 分别为双曲线E 的左、右焦点,且 点C, D 在双曲线 E 上,若AB 6, BC 5 ,则双曲线的离心率为 2 10.已知定义在 R 上的奇函数 f (x)满足 f (x 2) f (x) 0,且当 x 0,1时,f(x) Iog 2(x 1).则下列不等式 A. f log 2 7 B. f lo g 2 7 f 6 f 5 C. f 5 f log 2 7 f 6 D. f 5 f 6 f lo g 2 7 11.设函数 f (x) sin(2x ),若 x 1x 2 3 ,且f(xj f(X 2) 0,则x 2 X 」的取值范围为

高中2017届毕业班第一次诊断性考试 文科综合能力测试 第I卷 本卷共35个小题,每小题4分,共140分。在每小题给出的四个选项中,只有一项符合题目要求。 多肉植物叶小、肉厚,非洲西南部的纳马夸兰地区夏季多雾和冬雨使多肉植物疯狂繁殖,其多肉植物出口量已位居世界前列。图1是纳马夸兰位置示意图,读图完成1~3题。 .纳马夸兰夏季多雾的原因是1 .沿岸寒流的降温作用明显 A .沿海海水温度较高B C.沿岸暖流提供充足暖湿空气D.海陆间气温差异大2.多肉植物叶小、肉厚的原因是B.降水较多,汁液饱满A.昼夜温差大,富含营养物 D.地下水丰富,生长旺盛C.气候炎热干燥,储存水分 3.非洲纳马夸兰多肉植物出口到世界各地,主要得益于.劳动力廉价BA.互联网进步 .政策支持 D C.交通进步 )是我国水温最低、冰情最重、海冰资2 海冰含盐量接近淡水,适当处理后可作为淡水资源。辽东湾(图题。4~6源分布最多的海区,但目前仍未大规模开发。据此完成 4.辽东湾海面冬季易结冰的主要原因有①纬度较高,获得光热少 ②多河流注入,海水盐度低 ③海湾较封闭,水体流动性差 ④受寒流影响,降温明显

B.①②④A.①②③.②③④DC .①③④ .海湾封冻会导致5 .区域内降雪量增加 B A.上空空气湿度增加 .冰下海水盐度升高 D C.冰面风力显著减弱 6.目前,世界范围内通过海冰大规模制取淡水成本较高的原因可能是D.海水污染严重.开采海冰难度大.海水结冰时间短 A B.海冰资源较少 C 的树木和植70% 这是一个神奇的岛屿,岛上的动物是世界上独有的,80% 万年的进化历物在世界上也是独一无二的。岛上的狐猴已经完成了长达5500 ~9题。3程。图示意该岛屿等高线地形,读图回答7 R城市分布的主导因素是.影响该岛屿7 .纬度位置A.大气环流 B D.洋流性质.海拔高度 C 8.该岛屿物种独一无二,其根本原因是.开发历史较短.脱离大陆较早 A B D C .环境比较单一.缺少大型天敌.该岛屿狐猴集中分布区的自然景观是9. A.荒漠B.草原 C.绿洲D.森林 森林火灾与气象条件密切相关。图4示意我国某省森林火灾天气等级预 题。10~11报,读图回答.该次森林火灾天气等级预报最可能发布于10 .7月B月A.5 1 1月D.9月C.11.图中甲区域森林火灾天气等级比其东部地区较低,其影响因素是.地形BA .纬度 .季风 D C.植被

2012级成都一诊理综生物试题 1.下列关于人体稳态的叙述,正确的是: A.严重腹泻后只需补充水分就能维持细胞外液正常的渗透压 B.人体内血糖平衡的调节直接由下丘脑所控制的神经来完成 C.甲状腺激素和肾上腺素在体温调节的过程中具有拮抗作用 D.体内的细胞只有通过内环境才能与外界环境进行物质交换 2.下图为动物体内的细胞亡及清除过程示意图。以下叙述不正确的是 A.该过程体现了生物膜的信息识别和传递功能 B.细胞正常凋亡是相关基因选择表达的结果 C.吞噬细胞清除凋亡细胞时要依赖膜的流动性 D.吞噬细胞对凋亡细胞的清除属于特异性免疫 3.某实验小组将小鼠肝细胞在体外培养一段时间后,检测培养液 中的氨基酸、葡萄糖和尿素含量,发现它们的含量变化如右图 所示。由该实验能得出的结论是 A.葡萄糖是肝细胞进行生命活动的主要能源物质 B.肝细胞中可能发生了脱氨基作用进而产生尿素 C.葡萄糖经氨基转换作用可以形成非必需氨基酸 D.氨基酸和葡萄糖在肝细胞内都可以转变成脂肪 4.我国科学家采用细胞融合技术,将病人体内的某种癌细胞与能呈递抗原的细胞进行“杂交”,研制出一种新型“肿瘤疫苗”这种疫苗能够“教会”人体免疫系统识别并杀伤癌细胞。下列分析正确的是A.“能呈递抗原的细胞”中含有原癌细胞基因且处于激活状态 B.人体内能呈递抗原的细胞有B细胞、T细胞和记忆细胞 C.可用灭活病毒诱导癌细胞与能呈递抗原的细胞“杂交” D.“肿瘤疫苗”注入人体后可以直接杀死绝大部分癌细胞 5.在长期干旱条件下,观赏植物蝴蝶兰可在夜间吸收CO2并贮存在细胞中,以适应这种恶劣环境。下图表示在正常和干旱条件下蝴蝶兰CO2吸收速率的昼夜变化,下列据图进行的有关分析正确的是 A.干旱条件下的蝴蝶兰叶肉细胞在0~4时不能合成ATP和[H] B.干旱条件下蝴蝶兰在10~16时不吸收CO2的原因是气孔关闭 C.干旱条件下的蝴蝶兰在10~16时光合作用的暗反应全部停止 D.正常条件下蝴蝶兰在6~20时间段内光合作用都强于呼吸作用 30.(20分)回答下列问题 Ⅰ.(8分)为研究酵母菌发酵的产物,某研究小组设计了如下图甲所示的装置图。①号、②号试管中均加入3ml蒸馏水和少许0.1%溴麝香草酚蓝(简称BTB)溶液,此时溶液呈蓝色(当环境偏酸性时,BTB溶液呈黄色)。请回答:

四川省成都市高2015级高三第一次诊断性考试英语试题 第I卷(100分) 第一部分听力(共两节,满分30分) 做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。 第一节(共5小题;每小题1.5分,满分7.5分) 听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. When will the speakers meet? A. On Monday. B. On Tuesday. C. On Thursday. 2. What did the man do over the weekend? A. He went hiking. B. He went camping. C. He went dancing. 3. What are the speakers talking about? A. The woman’s trousers. B. The woman’s shoes. C. The woman’s socks. 4. What is the weather like on the wedding day? A. Sunny. B. Rainy. C. Windy. 5. What does the woman think of her trip to Mexico? A. Enjoyable. B. Ordinary. C. Terrible. 第二节(共15小题;每小题1.5分,满分22.5分) 听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟。听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听第6段材料,回答第6至7题。 6. What does Billy want to do? A. Meet a lifeguard. B. Go swimming. C. Play outdoors. 7. What worries Billy’s mother most? A. Billy’s loneliness. B. Billy’s health. C. Billy’s safety. 听第7段材料,回答第8至10题。 8. Where did the man leave his keys? A. In his house. B. In his car. C. In his bag. 9. How did the man get in? A. By breaking the lock. B. By using a spare key. C. By climbing in through a window. 10. What is the probable relationship between the two speakers? A. A couple. B. Neighbors. C. Colleagues.

成都市高新区2019届高三一诊考试理科综合物理 二、物理选择题: 1.叠放在水平地面上的四个完全相同的排球如图所示,质量均为m,相互接触,球与地面间的动摩擦因数均为μ,则: A. 上方球与下方3个球间均没有弹力 B. 下方三个球与水平地面间均没有摩擦力 C. 水平地面对下方三个球的支持力均为 D. 水平地面对下方三个球的摩擦力均为 【答案】C 【解析】 对上方球分析可知,小球受重力和下方球的支持力而处于平衡状态,所以上方球一定与下方球有力的作用,故A错误;下方球由于受上方球斜向下的弹力作用,所以下方球有运动的趋势,故下方球受摩擦力作用,故B错误;对四个球的整体分析,整体受重力和地面的支持力 而处于平衡,所以三个小球受支持力大小为4mg,每个小球受支持力为mg,故C正确;三个下方小球受到的是静摩擦力,故不能根据滑动摩擦力公式进行计算,故D错误.故选C. 2.一带电粒子仅在电场力作用下从A点开始以做直线运动,其v-t图像如图所示,粒子在时刻运动到B点,3时刻运动到C点,下列判断正确的是 A. A、B、C三点的电势关系为

B. A、B、C三点场强大小关系为 C. 粒子从A点经B点运动到C点,电势能先增加后减少 D. 粒子从A点经B点运动到C点,电场线先做正功后做负功 【答案】C 【解析】 A、因为不知道带电粒子的电性,所以无法判断电势的关系,故A错误; B、由速度图像可知,加速度先增大后减小,所以B点的加速度最大,电场强度最大,故B错误; C、由图像可知:动能先减小后增大,根据能量守恒可知:电势能先增后减小,故C正确; D、因为电势能先增大后减小,所以电场力先做负功后做正功,故D错误; 故选C。 【点睛】速度图像的斜率大小表示加速度的大小,根据速度大小可知动能的变化,根据能量守恒可知电势能的变化。 3.如图所示的温控电路中,R1为定值电阻,R2为半导体热敏电阻(温度越高电阻越小),C为电容器,电源内阻不可忽略。当环境温度降低时下列说法正确的是 A. 电容器C的带电量增大 B. 电压表的读数减小 C. 干路电流增大 D. R1消耗的功率变大 【答案】A 【解析】 【详解】C、当环境温度降低时R2增大,外电路总电阻增大,根据闭合电路欧姆定律分析得知,干路电流I减小.故C错误。 A、电容器的电压U C=E-I(r+R1),E、r、R1均不变,I减小,U C增大,由得,电容器C的带电量增大.故A正确. B、总电流I减小,路端电压U=E-Ir,E、r不变,则U增大,电压表的读数增大.故B错误.

理科综合 生物部分 第1页(共4页) 理科综合 生物部分 第2页(共4页) 成都市2016届高三“一诊”模拟试题(一) 理科综合 生物试题 第I 卷(选择题 共42分) 注意事项:第Ⅰ卷共7题,每题6分,每题给出的四个选项中,只有一个选项符合题目要求. 1.下列关于细胞的生命历程和功能的表述,错误的是 A .分化程度不同的活细胞中可能含有相同的某种酶 B .基因突变可使已分化的正常细胞变成癌细胞 C .细胞凋亡使细胞自主有序死亡,有利于多细胞生物体内部环境的稳定 D .主动运输使膜内外物质浓度趋于相同,维持了细胞的正常代谢 2.下列有关生物技术实践的说法正确的是 A .工业生产中只能从植物中提取天然β-胡萝卜素 B .电泳法分离各种分子的原理是样品中各种分子带电性质分子大小不同 C .制作果酒的整个过程中时应避免通人空气以提高生产速度 D .参与果酒和果醋发酵的微生物均含有多种细胞器 3.下列关于生命活动调节的叙述,正确的有: ①严重腹泻后只需补充水分就能维持细胞外液正常的渗透压 ②刺激支配肌肉的神经,引起该肌肉收缩的过程属于非条件反射 ③垂体功能受损的幼犬会出现抗寒能力减弱等现象 ④突触后膜上的受体与相应神经递质结合后,就会引起突触后膜的电位变化为外负内正 ⑤在寒冷环境中能促进人体代谢产热的激素主要是胰岛素和肾上腺素 ⑥甲亢病人体内促甲状腺激素的含量低于正常值 ⑦细胞免疫的存在使得正常机体体内无细胞癌变 ⑧糖尿病患者体内细胞吸收利用血糖的速率加快 A . 一项 B .两项 C . 三项 D . 四项 4、下表是某同学对高中生物教材实验的部分归纳。对此表分析合理的是 细胞内的物质或结构 实验处理 观察到的颜色 甲 Ⅰ 蓝色 乙 Ⅱ 绿色 A .提取结构乙中的色素需使用有机溶剂 B .Ⅰ一定要进行水浴加热 C .Ⅱ一定要滴加甲基绿试剂 D .物质甲肯定是淀粉 5、植物生长调节剂在蔬菜、水果等的种植、保存方面已有较多应用,下列说法错误的是 A .可用乙烯利催熟香蕉 B . 在芦苇生长期用一定浓度的赤霉素溶液处理可使其纤维长度明显增加 C .用赤霉素处理大麦可以使大麦种子无需发芽就可以产生α-淀粉酶 D .植物生长调节剂容易合成、原料广泛、但效果不稳定 6.右图为某哺乳动物某个DNA 分子中a 、b 、c 三个基因的分布状况,其中I 、II 为非基因序列。有关叙述正确的是( ) A .a 、b 、c 中任意一个基因发生突变,都会影响其他两个基因的表达 B .在减数分裂四分体时期,a 、b 之间可发生互换 C .提高突变频率的因素可分为物理因素、化学因素和生物因素 D .若某DNA 分子中b 、c 基因位置互换,则发生了染色体易位 7.下表是自变量为光照强度的条件下针对同一生态系统中甲乙两种植物所测得的一些数据,并据 此描绘出的曲线图。 以下分析正确的是 A .在乙植物的光饱和时单位时间内叶绿体和叶片释放的氧气量乙植物均高于甲植物,而在乙植物的光补偿点时则正好相反 B .在光饱和时乙植物单位时间内叶绿体中ATP 的产生量高于甲植物,线粒体中ATP 的产生量低于甲植物 C . 与c 点相比,b 点叶绿体中的C 3含量较低 D .若乙植物生长的环境中长期缺Mg,则b 点将向左移动 第II 卷(非选择题 共48分) 注意事项:第II 卷共 4题。 8.(14分)如图甲、乙、丙、丁分别表示真核细胞与水有关的生理过程,请据图回答: (1)甲图中不属于原生质层的结构有 (填图中数字标号);判断变化后的甲图细胞是否为活细胞,简便的操作是 。 (2)乙过程发生的能量转换是 ;丁图生命活动产生的另一化合物的转移途径是 ,

高中 2017 届毕业班第一次诊断性考试 文科综合能力测试 第I 卷 本卷共 35 个小题,每小题 4 分,共 140 分。在每小题给出的四个选项中,只有一项符合题目要求。多 肉植物叶小、肉厚,非洲西南部的纳马夸兰地区夏季多雾和冬雨使多肉植物疯狂繁殖,其多肉植物出口 量已位居世界前列。图 1 是纳马夸兰位置示意图,读图完成1~ 3 题。 1.纳马夸兰夏季多雾的原因是 A.沿岸寒流的降温作用明显 B.沿海海水温度较高 C.沿岸暖流提供充足暖湿空气 D.海陆间气温差异大 2.多肉植物叶小、肉厚的原因是 A.昼夜温差大,富含营养物B.降水较多,汁液饱满 C.气候炎热干燥,储存水分D.地下水丰富,生长旺盛 3.非洲纳马夸兰多肉植物出口到世界各地,主要得益于 A.互联网进步B.劳动力廉价 C.交通进步D.政策支持 海冰含盐量接近淡水,适当处理后可作为淡水资源。辽东湾(图 2)是我国水温最低、冰情最重、海冰资源分布最多的海区,但目前仍未大规模开发。据此完成 4~ 6 题。 4.辽东湾海面冬季易结冰的主要原因有 ①纬度较高,获得光热少 ②多河流注入,海水盐度低 ③海湾较封闭,水体流动性差 ④受寒流影响,降温明显 A.①②③B.①②④ C.①③④D.②③④ 5.海湾封冻会导致 A.上空空气湿度增加B.区域内降雪量增加 C.冰面风力显著减弱D.冰下海水盐度升高 6.目前,世界范围内通过海冰大规模制取淡水成本较高的原因可能是 A.海水结冰时间短B.海冰资源较少C.开采海冰难度大D.海水污染严重 这是一个神奇的岛屿,岛上70%的动物是世界上独有的,80%的树木和植 物在世界上也是独一无二的。岛上的狐猴已经完成了长达5500 万年的进化历 程。图 3 示意该岛屿等高线地形,读图回答7~ 9 题。 7.影响该岛屿R 城市分布的主导因素是 A.大气环流B.纬度位置 C.海拔高度D.洋流性质 8.该岛屿物种独一无二,其根本原因是 A.脱离大陆较早B.开发历史较短 C.环境比较单一D.缺少大型天敌 9.该岛屿狐猴集中分布区的自然景观是

绵阳市高中2015级第一次诊断性考试 理科综合能力测试 可能用到的相对原子质量:H 1 C 12 N 14 O 16 K 39 Mn 55 Fe 56 一、选择题:本题共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.下列关于细胞物质组成和结构的描述,不正确的是 A.C、H、O、N、P是磷脂、基因、RNA共有的化学元素 B.线粒体中的DNA,能进行自我复制并控制某些蛋白质的合成 C.细菌代谢速率快,与细胞膜和细胞器膜为酶提供了附着位点有关 D.在细胞周期中,染色质变成染色体有利于核内遗传物质的平均分配 2.下列有关果蝇(染色体组成2N=8)的说法,正确的是 A.果蝇基因组测序,测定的是4条染色体上的DNA序列 B.果蝇的一个次级精母细胞中,有可能含有2条X染色体 C.果蝇经正常减数分裂形成的配子中,染色体数目为2对 D.性染色体异常XXY的果蝇,其体细胞中有3个染色体组 3.下列有关实验现象的描述,正确的是 A.分离绿叶中色素时,若色素带重叠,可能是因为滤液细线画得过粗 B.由于蔗糖是非还原糖,故向蔗糖溶液中加入斐林试剂后无颜色变化 C.高倍镜观察洋葱鳞片叶内表皮细胞,可观察到细胞核和线粒体均有双层膜结构 D.以菠菜叶肉细胞为材料观察叶绿体,可观察到椭球形的叶绿体围绕在细胞核周围 4.人类干细胞的研究一直是科技热点之一,利用干细胞在体外培育出组织和器官,对治疗癌症和其他多种 恶性疾病具有重要意义。下列有关干细胞的描述正确的是 A.干细胞比受精卵分化程度低 B.干细胞中也存在与癌有关的基因

C.干细胞培育出组织和器官,体现了干细胞的全能性 D.干细胞分化成相应组织的过程中,细胞内核酸种类和数量不变 5.为探究加酶洗衣粉的洗涤效果。实验分甲乙丙三组,甲组用普通洗衣粉,乙组使用加入蛋白酶的洗衣粉, 丙组使用加入了脂肪酶的洗衣粉。在不同温度下清洗同种布料上的2种污渍,其它条件均相同,实验结果 如下表。下列说法错误的是 水温(℃)20 30 40 50 组别甲乙丙甲乙丙甲乙丙甲乙丙清除血清(时间/min)19 13 18 17 10 16 14 4 14 13 1 12 清除油渍(时间/min)20 19 14 18 18 11 16 15 5 14 14 2 A.实验布料不宜选用毛织品或蚕丝制品 B.乙、丙两组洗涤效果的差异,与酶的专一性有关 C.实验结果表明,加酶和适当提高温度可以提高洗衣粉的去污能力 D.为确定加酶洗衣粉的最佳洗涤温度,需在40-50℃之间划分更细的温度梯度进一步揉究 6.某鳞翅目昆虫的性别决定方式为ZW型,其成年个体有白色、浅黄和深黄三种颜色。体色的遗传由常染 色体基因(A、a)和性染色体基因(Z B、Z b)共同决定,A和Z B共同存在时,表现为深黄色,仅有A而无Z B表现 为浅黄色,其余均为白色。下列有关叙述不正确的是 A.该昆虫群体,与体色有关的基因型种类雄性多于雌性 B.不考虑变异,白色个体随机交配,后代的体色均为白色 C. AaZ B W和AaZ B Z b杂交,子代雄性个体中杂合子占1/2 D.深黄色亲本杂交后代出现三种颜色,则亲本基因型为AaZ B W、AaZ B Z b 7. 化学与生活密切相关。下列说法正确的是 A.食品中的抗氧化剂对人体无害且均具有氧化性

成都市高2013级高中毕业班第一次诊断性检测 理科综合物理部分 第I卷(选择题,共42分) 本卷共7题,每题6分,共42分。在每小题给出得四个选项中,第1-5题只有一项 符合题目要求,第6-7题有多项符合题目要求,全部选对得得6分,选对但不全得得3分, 有选错得得0分。 1.如图所示为水平放置得两根等高固定长直细导线得截面图,O点就是两导线间距离得中点, a、b就是过O点得竖直线上与O点距离相等得两点,两导线中通有大小相等、方向相反得恒定电流。下列说法正确得就是 A.两导线之间存在相互吸引得安培力 B.O点得磁感应强度为零 C.O点得磁感应强度方向竖直向下 D.a、b两点得磁感应强度大小相等、方向相反 2.我国研制得北斗导航系统又被称为“双星定位系统”,系统由5颗地球同步轨道卫星与30颗低轨卫星组网而成(见图),这些卫星得运动均可瞧作匀速圆周运动。2012年12月27日,北斗导航系统正式投入运营,计划到2020年完全建成。关于该导航系统,下列说法正确得就是 A.系统中得地球同步轨道卫星可以定位在成都正上方 B.系统中从地面发射质量为m得同步卫星比发射质量为m得低轨卫星所 需得能量更多 C.系统中卫星得运行周期与月亮绕地球运行得周期可能相同 D.系统中卫星得运行速度可以大于11、2 km/s 3.如图所示得电路中,Ro为热敏电阻(温度降低电阻增大),C为平行金属板,M点接地。 闭合开关S,待电路稳定后,C中央有一带电液滴刚好静 止。下列各项单独操作,可能使带电液滴向下运动得就是 A.断开开关S B.将变阻器R得滑动头P向上滑动 C.加热热敏电阻Ro D.将C得上极板略向下平移 4.如图所示,斜面c置于水平面上,小物体b置于c上,小球a用细线跨过光滑定 滑轮与b相连,b与滑轮间得细线保持竖直,将a从图示位置(此时细线 绷紧)无初速释放,使口在竖直平面内摆动,在“摆动得过程中,b、c始终保持静

成都市高2018级高三一诊模拟试题 英语 考试时间:120分钟总分:150分 第I卷 第一部分:听力(共两节,满分30分) 第一节(共5小题;) 1. What is the man buying? A. A scarf. B. A jacket. C. A suit. 2. What would the man like? A. Coca-Cola. B. Lemon soda. C. Orange juice. 3. Why will the street be decorated? A. To celebrate a festival. B. To make the city beautiful. C. To welcome some famous players. 4. Where does the conversation take place? A. On a boat. B. On a train. C. On a plane. 5. What does the woman mean? A. She hates murder and war. B. People are becoming worse. C. She’s optimistic about people. 第二节(共15小题;) 听第6段材料,回答第6、7题。 6. Where are the speakers heading? A. To New York. B. To Mexico City. C. To Arizona. 7. What will the speakers do next? A. Find some help. B. Go to a drugstore. C. Get something to eat. 听第7段材料,回答第8、9题 8. What will the woman probably do? A. Buy a new watch. B. Give the watch away. C. Take the man’s advice. 9. What does the man say about his watch? A. He doesn’t bother to set it right. B. He spent a lot of money on it. C. He got it from a family member.

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