四川省蓉城名校联盟(2018级)2021届高三上学期第一次联考英语试卷及答案

四川省成都市蓉城名校联盟2023-2024学年高一上学期期中联考英语试题学校:___________姓名：___________班级：___________考号：___________一、短对话1．What does Jim do?A．A teacher.B．An officer.C．A student.2．When did Suzy leave home?A．At 4:30.B．At 5:00.C．At 5:15.3．What is the man’s suggestion?A．Going to the concert.B．Going to see a show.C．Just walking around. 4．What are the speakers mainly talking about?A．The weather.B．Football games.C．A weekend plan. 5．What do they think of their chemistry course?A．It’s well organized.B．It is boring.C．It is unsatisfactory.二、长对话听下面一段较长对话，回答以下小题。

6．What is the possible relationship between the two speakers?A．Friends.B．Teacher and student.C．Customer and salesman. 7．Why is the woman interested in the book with a note?A．It’s about poetry.B．It’s written by Shakespeare.C．It may be very valuable.听下面一段较长对话，回答以下小题。

8．What are the man and woman looking for?A．A comfortable hotel.B．A modern hotel.C．An inexpensive hotel. 9．Whom do the man and woman ask for help?A．A policewoman.B．A waitress.C．A passer-by. 10．Where could the man and woman find a hotel they needed?A．In the next street.B．Next to a bank.C．Two-minute drive to the west.11．Where does the conversation most likely take place?A．In a street.B．In a restaurant.C．In a hotel.听下面一段较长对话，回答以下小题。

2021届四川省成都市2018级高三上学期一诊考试英语试卷★祝考试顺利★(含答案)本试卷分选择题和非选择题两部分。

满分150分,考试时间120分钟。

注意事项：1.答题前,务必将自己的姓名、考籍号填写在答题卡规定的位置上。

2.答选择题时,必须使用2B铅笔将答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦擦干净后,再选涂其它答案标号。

3.答非选择题,必须使用0.5毫米黑色笔迹的签字笔,将答案书写在答题卡规定的位置上。

4.所有题目必须在答题卡上作答,在试题卷上答题无效。

5.考试结束后,只将答题卡交回。

第1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L 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. What presents are the best for kids?A. Toys.B. Books.C. It depends.2. Who does the man prefer to watch the TV program with?A. His father.B. His brother.C. His friends.A. To greet the woman.B. To make a survey.C. To provide help.4. What's the possible relationship between the speakers?A. Friends.B. Colleagues.C. Interviewer and interviewee5. Why is the photograph so special for the woman?A. It was taken in VietnamB.It is an artwork.C. It was taken 5 years ago.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。

2023-2024学年四川省成都市蓉城名校联盟高一上学期期末联考英语1. What does the man want to do now?A．Have dinner. B．Watch the news. C．Set the table.2. How much was the kitchen table two years ago?A．$80. B．$60. C．$20.3. What does the man think of the doctor’s advice?A．Disappointing. B．Unusual. C．Satisfying.4. What are the speakers probably talking about?A．A dictionary. B．A page. C．A book.5. When will the flowers be on show?A．On Sunday. B．On Saturday. C．On Friday.听下面一段较长对话，回答以下小题。

6. What is the probable relationship between the speakers?A．Neighbors. B．Waiter and customer. C．Husband and wife.7. What does Cindy need?A．A cake. B．Two eggs. C．Some coffee.听下面一段较长对话，回答以下小题。

8. Where does the conversation probably take place?A．In an office. B．At school. C．At home.9. Why does the man leave?A．To work in another company.B．To study abroad.C．To live close to his family.听下面一段较长对话，回答以下小题。

川省成都市蓉城名校联盟（2018级）2021届高三第二次联考英语试题学校:姓名：____________________ 班级：考号：一、阅读选择Start Reading More in 2021The Invisible Life of Addie LaRueV.E. SchwabIn 1714, Addie LaRue made a bargain to live forever. Since then, she's traveled the globe trying to leave her mark on the world —but when you live for centuries, it's hard for anyone to remember your name. That is, until she meets a man in a hidden bookstore hundreds of years later who does. This time-traveling tale will fill your heart with magic and wonder.Caste: The Origins of Our DiscontentsIsabel WilkersonThrough stories about real people (like Martin Luther King Jr.) and intense historical research, author Isabel Wilkerson links the hidden caste(等级)systems of America with India and Nazi Germany, and examines the solutions that are necessary in order for the country to move forward. This novel is eye-opening, informative and an absolute must-read.Midnight SunStepbenie Meyer"Midnight Sun" was one of the most highly expected books of 2020. In this fifth companion book to the popular “Twilight” series, readers get a glimpse into the vampire Edward Cullen's views on his relationship with Bella Swan, accompanied with details of his past and inner thoughts. Fans. of the series will finally be able to understand the star-crossed lovers' tale as a whole.The Girl With the Louding VoiceAbi DareThis tale follows Adunni, a teenage girl growing up in a rural Nigerian village, who wants nothing more than an education. Despite many barriers that come her way, Adunni manages to escape poverty in order to build the life she dreamed of. This story of determination and hope will teach you about the power of reaching for your dreams and never giving up.试卷第1页，总10页1.Who might like V E. Schwab's book better?A. History lovers.B. Fantasy story lovers.C. Art lovers.D. Adventure lovers.2.What is special about Midnight Sun?A.It belongs to one of a series of books.B.It can arouse readers' fighting spirits.C It tells readers Meyer's inner thoughts.D. It is written from Bella,s points of view.3.Which book will you choose if you are interested in the inspiring story?A.Midnight Sun.B.Caste: The Origins of Our Discontents.C.The Girl With the Louding Voice.D.The lnvisible Life of Addie LaRue.The 47-year-old mum has donated a kidney （肾）to a stranger and part of her liver （肝）to a sick little boy. Sue is even trying to give away a lung. which would make her the only living person in the world to have made so many selfless donations. She said: “To be able to give someone their life back is fantastic. At the moment, giving a lung isn,t possible in this country. but I,d love to do it.”Sue,s first donation was the k idney in 2001. She explained: “You don,t need two kidneys.A lot of people are born with only one Why not give one to someone who needs it?” But at that time it was illegal here to give an organ to a stranger. So Sue from Dulwich, south London who accepts only travel and living expenses, posted an internet ad saying: “Free kidney. no conditions attac hed.”Larry Rosenfield from Colorado in the US answered the ad. He was 60, suffering from a kidney disease and time was running out. After establishing she was a match for Larry, Sue flew to the US. “The Colorado hospitals wouldn't accept me because it was the time of mad cow disease, so Larry found a hospital in Wisconsin that would do the operation.” Larry is now 73 and leading a full and active life.Now Sue would like to donate a lung. In 2006, selfless donations became legal in the UK but not for lung donations so she's planning to go to America again.And she insists her husband Roland, 51, and their 19-year-old son Daniel back her all the试卷第2页，总10页way. She said: "Some of my friends don't understand but. I'll never regret it. It's about changing lives. It's a g reat feeling.”6. Which word best describes Sue's attitude to her organ donations? A Critical. B Conservative. C. Regretful.D. Proud.7. In which section of a newspaper may this text appear? A. Health. B. Science. C. Real life stories.D. Entertainment.“Snow algae （藻类）is already a part of summer on the Antarctic Peninsula. Awarming planet may mean a lot more of it. The algal blooms （藻华）that blanket parts ofAntarctica,s snow cover in the summer are likely to expand as the planet warms.” researcherssay in a new study.“Green snow algae is found in warmer areas along the coastline where summertemperatures are above freezing. but still cold en ough for there to be snow.” say scientists in astudy published Wednesday in the joi rnal Nature. It,s also more abundant in areas in close proximity to nesting sites and gathering places for animals like penguins and seals, whose feces（粪便）fuel the algae,s growth.Green algae isn't new for Antarctica -it,s known to have been there to some d egree for decades. New Scientist notes. But what researchers found suggests that climate change could have a major impact on algae in Antarctica, which in turn, could have its own impact on a warming planet.The scientists don't predict that green algae will spread on all part, of the penguin. In fact. some small low-lying islands are likely to lose algae, because those islands may lose their summer snow cover altogether-and the snow algae can't grow without snow. But they predict the amount of green algae is likely to grow on larger pieces of land, where it can spread试卷第3页，总10页4. What made Sue donate her organs? A . Saving one's life. C . Needing living expenses.5. How did Sue help Larry? A She found a hospital for him. C She answered his advertisement.B. Trying to be famous. D. Removing useless organs.B. She donated a kidney to him. D. She advertised his kidney online.upward to higher ground that still has snow.So what does more algae mean, besides turning the landscape green? It,s not totally clear.The green algae works as a carbon sink -the current amount of algae in Antarctica pulls about 500 tons of carbon from the atmosphere each year. On the other hand, algae also makes the surface of the snow darker, which leads to less sunlight being reflected from the snow's surface. Scientific American notes. That means that more of the sun's heat gets absorbed, speeding up wanning. It's high time that we should protect our planet. 8. What causes the algal blooms? A. The melting of snow. C. The researchers' activities.9. What do we know about green snow algae? A. It has covered all parts of Antarctica. B. It will spread to islands without snow. C. It has some effect on penguins and seals. D. It can grow in warm or fertilized places. 10. What is the last paragraph mainly about? A The effects of green algae. C. Changes of Antarctica's snow.11. What is the author's purpose in writing the text? A To present a new finding about green algae. B To explain the origins of green snow algae. C To call on people to protect the environment. D To show his concern about green snow algae.Brain games do not make you smarter. Companies like Lumosity made their bonesthrowing around terms like "brain elasticity'' to publicize their specific brand of brain promoting training, but upon further review, their claims were a bit dubious. They paid the price in the form of a $2 million false advertising fine, but their misstep doesn't mean there's no daily avenue to higher cognitive （认知的）function.For kids, the best way to help improve cognitive function is through aerobic exercise. For adults, the best bet is more sedentary, and fortunately a bit less intense; if you want to up your energy and brain function, take some time out of your day to practice Hatha yoga orB The rising air temperature. D The covering of the blanket.B A carbon sink in Antarctica.D . The reflection from the snow,s surface.试卷第4页，总10页mindfulness meditation （冥想）.A new study from the University of Waterloo took a look at the effects of 25 minutes of daily Hatha yoga or mindfulness meditation on brain function and energy in a group of 31 adults. The participants were asked to complete 25 minutes of quiet reading as a control activity and 25 minutes of varied meditation at random intervals. Following each activity, the participants were asked to perform a task which would measure their brain function and energy level.The research found that following both meditation and Hatha yoga, participants would perform significantly better at the task. The participants who practiced Hatha yoga saw the most sizeable bump in performance.“There are a number of theories about why physical exercises like yoga improve energy levels and cognitive test performance,” said Kimberly Luu, the study,s lead author, via Science Daily. "These include the release of endorphins, increased blood flow to the brain, and reduced focus on ruminative thoughts. Though ultimately, it is still an open question.”Twenty-five minutes of Hatha yoga in exchange for higher cognitive function? Not bad at all.12.What does the underlined word "dubious" in paragraph 1 mean?A. Acceptable.B. Trustful.C. Reasonable.D. Doubtful.13.Why did the researchers from the University of Waterloo conduct the study?A.To help improve cognitive function through physical exercises.B.To test the effects of daily exercise on energy and brain function.C. To measure participants, cognitive performance and energy levels.D.To increase blood flow to the brain and reduce focus on thoughts.14.What can we infer about physical exercises from Kimberly Luu's words?A.They are rarely built on a theoretical basis.B.They attract people's attention to open questions.C.They are beneficial to brain function and energy.D.They lower people's levels of cognitive performance. 15.What is the best title for the text?A.Daily Exercise Promotes Brain Power.B.Brain Function Is Related to Energy.C. A New Study Changes People's Mind.试卷第5页，总10页D.Brain Power Controls Cognitive Performance.二、七选五Communication Skills That Will Improve Your RelationshipsBad habits could be standing between you and your best possible relationships with family, friends and colleagues.16. And learn how to truly hear and be heard.1. Account for your emotionsBefore a single word is spoken, your emotional state can influence the quality of a discussion.17. And if an exchange becomes heated, remember that time outs aren't just for kids. You can say that you need to take a break. But reassure the other person that you're going to revisit the issue later at a set time so that this strategy doesn't become a form of confnet avoidance.2.Think like a negotiatorPeople often enter into high-stakes conversations having rehearsed their own position awfully, which may be counter-productive. Don't go in thinking that there's only one solution and that you already know what it is.18.3.Take turnsSometimes it's perfectly fine for one person to do most of the talking —in a lecture, interview or counseling session, for instance.19. Brain imaging shows that talking about yourself tends to activate the dopamine-reward system. So everyone should get that same pleasure. Responses that shift the topic to yourself should be balanced by replies that show interest in others.4.20.A common reaction to criticism is to stop listening, so it can be hard to get your point across if you put someone on the defensive. One of the most valuable communication skills is lo address a situation by stating how it makes you feel instead of describing the other person negatively.A.Consider these tips.B.Avoid making judgmentsC. Stop listening and speakingD.Talking wastes a lot of time.E.You'd better wait until you feel calm.试卷第6页，总10页F.But in a conversation the percentage should be more or less balanced.G.Instead, yo u,d better make a joint problem-solving effort and keep an open mind.三、完形填空Notre Dame (巴黎圣母院) was on fire, and I was desperately looking for a photo that I took in 2008.In it, my 21 , Jamie, is standing front of the 22 and smiling amid a sea oftourists. He's 23 years old. freshly shaved, and wearing a shiny wedding ring. We're in Paris on our 23 .On our last night in France, we made a 24 to return every five years.Our promise to return was 25 in 2013.We had a victorious trip that 26 a dinner on He Saint-Louis, 27 by a nighttime walk past Notre Dame. I 28 the evening on Instagram with a simple title: “Tonight was magic.”In 2018, I returned to Paris 29 .I carried Jamie's ashes with me.Jamie died on February 4. 2017. He was running a half marathon and suddenly 30 less than a mile from the finish line, where 1 was waiting for him. He was 32 years old.Notre Dame was on fire, and I desperately want it to 31 .My 2018 trip to Paris involved a lot of walking and 32 , trying to make sense ofhow my life turned out. I didn't visit Notre Dame.Notre Dame was on fire, and I 33 want to talk to Jamie about it.I hope to visit Paris and its magnificent churches 34 in 2023. If and when I do return, it will be a (an) 35 visit.Everything is 36 including the people and places we love. Even our memories ____________37 over time, though some of the saddest images, like Notre Dame in flames, tend to 38us for a long time.But there's 39 in sadness and meaning in impermanence. Notre Dame will rebuild. And so will I. I'll keep 40 my life, too.21. A. workmate B.h usband C. servant D rival22. A. church B. fire C. sea D statue23.A.business B. dinner C purchase D honeymoon24.A.suggestion B.discussion C promise D conclusion试卷第7页，总10页25.A.broken B.made C suspected D tested26.A.included B.obtained C provided D guaranteed27.A.accompanied B.followed C replaced D caught28. A. enjoyed B.remembered C missed D documented29.A.soon B.alone C intentionally D accidentallyughed B.leaped C crashed D stopped31.A.develop B.bum C shine D survive.32.A.understanding B.reflecting C regretting D complaining33.A.carefully B.slowly C desperately D calmly34.A.again B.ever C once D also35.A.bittersweet B.ordinary C sudden D. unique36.A.possible B.impressive C momentary D. lasting37.A.happen B. exist C occur D. disappear38.A.wait for B live with C appeal to D. rely on39.A.sorrow B kick C hope D. confidence40.A.rebuilding B earning C realizing D. shaping四、用单词的适当形式完成短文阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

第I卷选择题（共100分）第一部分听力（共两节，满分30分）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。

例：How much is the shirt?A. £ 19.15.B.£ 9.18.C.£ 9.15.答案是C。

1. What are they doing?A. Taking a trip.B. Working on a farm.C. Feeding the cow.2. When will the man go to Mongolia?A. In June.B. In July.C. In August.3. Where does the conversation take place?A. In a laboratory.B. In a library.C. In a cafe.4. Why does the man fail to rent this apartment?A. He wants to rent a smaller one.B. He thinks it is too expensive.C. He intends to share a flat.5. What does the woman mean?A. John’s hairstyle is great.B. John’s hairstyle doesn’t fit him.C. John’s hairstyle is different from his friends’.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，并标在试卷相应位罝。

【关键字】学期四川省蓉城名校高2018届高三上学期第一次联考英语试题第I卷选择题（共100分）第一部分听力（共两节，满分30分）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。

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. What does the woman think of tomatoes?A. They are not tasty.B. They are really good.C. She doesn’t like them.2. Where is the man now?A. In New York.B. In Boston.C. In Washington.3. What are the two speakers talking about?A. A book.B. A film.C. A record.4. What can we learn about the woman?A. She wants to make fun of the man.B. She doesn’t know how to scan pictures.C. She is curious about how to use the computer.5. What happened to the man?A. He fell on the ground.B. His car’s windscreen was broken.C. He was hit by a stone.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，从题中所的A、B、C中选出最佳选项。

听前，每小题你将有5秒钟阅读；听完后，各小题将给出5秒钟作答时间。

每段对话或独白读两遍。

蓉城名校联盟2018级高三第一次联考英语参考答案及评分标准第一部分听力（共两节，满分30分）1～5：ABCBA6～10：BCAAA11～15：BCACC16～20：BCBBA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）21～23：BCD24～27：CBAD28～31：DABD32～35：ACCB第二节（共5小题；每小题2分，满分10分）36～40：CAGFD第三部分语言知识运用（共两节，满分45分）第一节（共20小题；每小题1.5分，满分30分）41～45：BCCAD46～50：ABDCA51～55：BBDAC56～60：ABCDD第二节（共10小题；每小题1.5分，满分15分61.indicating62.was sung63.with64.appearance65.his 66.original67.to read68.Interestingly69.an70.and 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l分，满分10分）Last weekend,I assisted my grandparents in preparing for our trip to Sanya.On Saturdaytheirmorning,after breakfast,I checked the bus schedule for Sanya and some hotel informations oninformationthe Internet.Then,I buy two tickets for my grandparents at the bus stop.In the afternoon,Iboughtcollected all things need by my grandparents.First,I put a broadly umbrella into the suitcase in needed broadcase of it rained.Second,I put sunglasses and suncream into it,that could protect them fromwhichthe sun.The next morning,I went to∧bus stop to see them off.Before say goodbye to them,Ithe sayingsuggested that they came back as soon as possible.come第二节书面表达（满分25分）（略）一、总体评分原则：评分时，先根据文章所表达的内容和语言质量初步确定其所属档次，然后以该档次的要求来衡量，确定或调整档次，最后给分。

第一部分客观题(请用2B 铅笔填涂)@@@@@@@@@@@@@@@@@@@@@@@@@$一、选择题（1-20,41-60每小题1.5分，21-40每小题2分，共100分）$$1A B C 6A B C 11A B C 16A B C $$2A B C 7A B C 12A B C 17A B C $$3A B C 8A B C 13A B C 18A B C $$4A B C 9A B C 14A B C 19A B C $$5A B C 10A B C 15A B C 20A B C $$$$21A B C D 26A B C D 31A B C D $$22A B C D 27A B C D 32A B C D $$23A B C D 28A B C D 33A B C D $$24A B C D 29A B C D 34A B C D $$25A B C D 30A B C D 35A B C D $$$$36A B C D E F G $$37A B C D E F G $$38A B C D E F G $$39A B C D E F G $$40A B C D E F G $$$$41A B C D 46A B C D 51A B C D 56A B C D $$42A B C D 47A B C D 52A B C D 57A B C D $$43A B C D 48A B C D 53A B C D 58A B C D $$44A B C D 49A B C D 54A B C D 59A B C D $$45A B C D 50A B C D 55A B C D 60A B C D $@@@@@@@@@@@@@@@@@@@@@@@@@第二部分主观题(请用黑色签字笔作答)成都市2018级高中毕业班第一次诊断性检测英语答题卡姓名:_______________班级:________条码粘贴处准考证号缺考标记/违纪标记：考生禁填！由监考老师负责用黑色字迹的签字笔填涂。

2024届四川省容城名校联盟高三第一次联考英语试题(3)一、听力选择题1. Which dustbin is for paper?A．The blue one.B．The brown one.C．The green one.2. Who is probably the man?A．A weight lifter.B．A fitness coach.C．A software engineer.3. How much did the woman save?A．$9.B．$ 44.C．$53.4. What are the speakers doing?A．Making dinner.B．Ordering some food.C．Shopping for a party.5. What club will Jane probably join?A．The Art Club.B．The Music Club.C．The Drama Club.二、听力选择题6. 听下面一段较长对话，回答以下小题。

1.A．How to perform better in a job interview.B．Who is more qualified for the position.C．How to work well in stressful situations.D．What are confident behaviors in an interview.2.A．By observing his or her body language.B．By asking him or her some questions.C．By creating some stressful situationsD．By learning his or her academic background.3.A．She's nervous.B．She's shyC．She's smart.D．She's talkative.4.A．Brainpower.B．Confidence.C．Experience.D．Academic background7. 听下面一段较长对话，回答以下小题。

蓉城名校联盟2018级高三第一次联考理科综合能力测试注意事项：1.答题前，考生务必在答题卡，上将自己的学校、姓名、班级、准考证号用0.5毫米黑色签字笔填写清楚，考生考试条形码由监考老师粘贴在答题卡上的“条形码粘贴处”。

2.选择题使用2B铅笔填涂在答题卡上对应题目标号的位置上，如需改动，用橡皮擦擦干净后再填涂其它答案；非选择题用0.5毫米黑色签字笔在答题卡的对应区域内作答，超出答题区域答题的答案无效；在草稿纸上、试卷上答题无效。

3.考试结束后由监考老师将答题卡收回。

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.下列关于病毒的描述，正确的是A.通常DNA病毒比RNA病毒更容易发生变异B.病毒不具有细胞结构，所以它不属于生物C.SARS病毒与HIV病毒感染的人体细胞相同D.病毒的外壳蛋白在宿主细胞的核糖体上合成2.下列关于真核细胞生物膜的叙述，正确的是A.细胞器之间都能通过囊泡进行物质运输B.有氧呼吸及光合作用产生A TP的过程均在膜上进行C.溶酶体执行功能的同时伴随其膜组分的更新D.蛋白质类激素分泌到细胞外依赖膜的流动性且不消耗能量3.关于细胞生命历程的叙述，正确的是A.衰老细胞内染色质固缩会影响DNA的复制和转录B.基因突变导致的各种细胞癌变均可遗传C.真核细胞不存在无丝分裂这一细胞增殖方式D.细胞凋亡是各种不利因素引起的细胞死亡4.将生物学知识与生活相联系，有助于我们了解一些基本保健常识。

下列说法错误的是A.胆固醇对人体有重要作用，过多摄入有益无害B.长期食用发霉的、熏制的食品，容易导致细胞癌变C.患急性肠炎的病人脱水时需要及时补水，同时也需要补充体内丢失的无机盐D.新宰的畜禽，过一段时间再煮，肉反而更鲜嫩，这与肌细胞溶酶体的作用有关5.黑藻是一种叶片薄且叶绿体较大的水生植物，分布广泛、易于取材，可用作生物学实验材料。

下列叙述错误的是A.在高倍光学显微镜下，观察不到黑藻叶绿体的双层膜结构B.将黑藻表皮放入0.3 g·mL－1蔗糖溶液中，水分交换平衡后制成装片观察质壁分离过程C.用显微镜观察根尖装片时，不能观察到分裂末期细胞板向四周扩展形成新的细胞壁D.探究黑藻叶片中光合色素的种类时，可用无水乙醇进行提取6.老鼠某隐性致死突变基因有纯合致死效应。