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求一道超难的高一新课表生物题（必修一,二里出.）求一道能考住省重点老师的高一生物题,最好附答案.P.S.我是手机党.
哈哈,你这个家伙,这样吧,我出了一个题目,虽然我们学校最好的学生做出来了,不过感觉也很难.图片可以在网上找.要说明,老师不怕概率计算题.你可以在网上搜图和答案,很多的.特别难.望采纳.红薯和土豆都富含淀粉,但红薯吃起来比土豆甜.为探究其原因,某兴趣小组在温度不同、其他条件相同的情况下对处于休眠期的红薯块根与土豆块茎处理30 min后测定还原糖的含量.结果如图： （1）由图中曲线可知,60℃时红薯还原糖含量最高,原因是
. （2）与红薯相比土豆不含还原糖的可能原因是
. （3）为了确定土豆中不含还原糖的原因,请完成以下实验：实验原理：
①淀粉能被淀粉酶水解为还原糖；
.备选材料与用具：
去掉淀粉和还原糖的红薯提取液,去掉淀粉的土豆提取液,双缩脲试剂A液,双缩脲试剂B液,斐林试剂A液,斐林试剂B液,苏丹红染液,质量分数为3%的淀粉溶液,质量分数为3%的蔗糖溶液等.实验步骤：第一步：取A、B两支试管,在A试管中加入去掉淀粉的土豆提取液2 mL,B试管中加入去掉淀粉和还原糖的红薯提取液2 mL.
水浴保温5 min.第二步：向A、B两支试管中各加入等量的水浴加温至60℃的
溶液.水浴保温5 min.第三步：将
后,向A、B试管内各加入2 mL.然后,
.最可能的实验结果：
. （4）食用土豆时,消化分解成的葡萄糖,几乎被小肠上皮细胞全部吸收,该吸收过程需要
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高中必修一化学什么参考书题目比较难一点?最好几乎都是题目的,有些参考书买来全都是基础题.做的崩溃掉了.黄冈密卷这样的可以么?题目有基础题,稍微难点的多一点,很难的题目有一两道就够了.有空的话顺便求数学.
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王后雄教材完全解读（题量足,拔高性强,解析详细）优化设计（题量适中,针对性好,解析详细）
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高一英语知识点：外研版高一英语必修一全册练习题（附答案）
来源：互联网资源
作者：新东方网整理
　　优化方案o成功相伴英语必修1(配外研o山东专用)班级：　　　　　　姓名：　　　　　　　　　　学号：　　　　　　　　　　　　　　　　　　 课时训练1
　　Module 1　My First Day at Senior High
　　Section Ⅱ　Introduction & Reading and Vocabulary—Language Study
　　Ⅰ.品句填词
　　1.Our ____________(以前的)teacher was kind to us.
　　2.Reading ____________(理解)ability is important in English study.
　　3.The girl used to be ____________(尴尬的)in public places，but now she is used to making a speech.
　　4.He simplified the ____________(说明)so that the children could understand them.
　　5.Our teacher is showing us a new ____________(方法)of doing things.
　　6.Believe it or not，I have never seen a better film.It is really ____________(令人吃惊的).
　　Ⅱ.选词填空
　　in other words
　　1. I bought some new shoes which are ____________ ____________a pair I had before.
　　2.She was ____________ when she heard I had won.
　　3.Mary is tall while her sister is short.She is __________ her sister.
　　4.You didn’t pass the driving test.____________，you failed in the test.
　　5.It ____________ me that he remembered my name.
　　Ⅲ.单项填空
　　1.The ________ expression on her face suggested she was ________ when she heard the news.
　　A.amazed　　　　B.amazing
　　C.amazed D.amazing
　　2.Tom，________.Don’t forget the school rules.
　　A.behave yourself B.please yourself
　　C.help yourself D.forget yourself
　　3.We’ve enjoyed having you on board and look forward ________ you again in the near future.
　　A.to see B.to seeing
　　C.at seeing D.on seeing
　　4.—There is________like a holiday to make one feel relaxed.
　　—That’s________so many people enjoy themselves traveling.
　　A.why B.because
　　C.because D.why
　　【名师答疑代码】
　　5.Be sure to read the ________ on the bottle before taking the medicine.
　　A.methods B.ways
　　C.instructions D.means
　　6.Americans eat vegetables per person today________as they did in 1910.
　　A.more than twice
　　B.as twice as many
　　C.twice as many
　　D.more than twice as many
　　【名师答疑代码】
　　7.For our homework tonight，we have to write a________of the park we have visited.
　　A.revision B.length
　　C.message D.description
　　8.My attitude________him is that of a friend.
　　A.to B.as
　　C.on D.for
　　9.The first time I toured the Great Wall，I was deeply impressed________the beautiful scenery.
　　A.with B.on
　　C.to D.for
　　10.—I’m going to attend John’s birthday party tonight.
　　—________.
　　A.All right B.Have fun
　　C.That’s right D.That’s great
　　Ⅳ.阅读理解
　　Education for Japanese children is free for the first nine years and all children must go to school for six years of primary schooling and three years of secondary schooling.In the primary and secondary schools，about 99.9 percent of school-age children are present.School usually begins at 8 o’clock in the morning and ends at 3 o’clock in the afternoon on weekdays and at noon Saturdays.The school year begins in April and ends in March.There is a summer holiday in August and a winter holiday during the New Year season.
　　After nine years of schooling，students can enter the three-year high school by passing an examination and by paying a small charge each year.After high school，students can go on to study at various types of colleges，usually for four years.There are also two-year junior colleges.
　　1.When do Japanese students have a summer holiday?
　　A.September.　　　　　　B.August.
　　C.July. D.June.
　　2.The passage mainly discusses about ________.
　　A.colleges in Japan B.free education in Japan
　　C.education in Japan D.school time in Japan
　　3.How many days do the Japanese students have to go to school every week?
　　A.Not known. B.Four and a half days.
　　C.Five days. D.Five and a half days.
　　4.If you want to go to high school in Japan，you must ________.
　　A.pay a small amount of money
　　B.study at primary and secondary school for 9 years
　　C.take part in the exam and pay a little money
　　D.pass the exam and pay a little money
　　5.In Japan most students study at college for________ years.
　　A.two B.three
　　C.four D.five
　　Ⅴ.阅读表达
　　Do you ever stay up late to play video games or watch TV? If so，you may want to think twice the next time.Experts say even one more hour of sleep a night counts (很重要).A new study shows that more sleep can help kids do better in school.
　　For two nights，a group of kids who took part in the study went to bed at their usual bedtime.After that，they were given tests for memory and attention span(注意广度).Both of these things are important for learning in school.
　　On the third night，some kids went to bed one hour earlier than usual.Others went to bed one hour later.The next day，experts tested the kids again.Here is what the experts found：The kids who slept one more hour improved their test scores.The kids who lost an hour of sleep did not improve their scores.
　　Most third graders need at least nine hours of sleep each night，experts say.However，studies show that many kids are not sleeping enough.That can make it hard for them to pay attention in school.
　　Going to bed early is not easy，experts agree，but it’s worth it!
　　One_more_hour_of_sleep_may_mean_the_difference_between_doing_well_and_falling_asleep_in_class.
　　1.What does the passage mainly tell us?(no more than 10 words)
　　________________________________________________________________________
　　2.What are the important things for learning in school according to the second paragraph?(no more than 10 words)
　　________________________________________________________________________
　　3.What can make it hard for kids to pay attention in school according to the passage?(no more than 10 words)
　　________________________________________________________________________
　　4.Which sentence in the passage can be replaced by the following one?
　　For two nights，the kids who joined in the study went to sleep at their usual time.
　　________________________________________________________________________
　　5.Translate the underlined part into Chinese.
　　________________________________________________________________________
　　课时训练2
　　Section Ⅲ　Listening，Everyday English and Function，Cultural Corner
　　Ⅰ.品句填词
　　1.Praise acts as an____________(鼓励)to the young.
　　2.I think there is too much____________(误解)between them.
　　3.I didn’t get much____________(乐趣)out of that novel.
　　4.The____________(改正)of all my mistakes took nearly an hour.
　　5.A____________(文凭)is very important in finding a job.
　　6.It is not easy to educate____________(少年).
　　Ⅱ.选词填空
　　disappear
　　1.She wanted to ____________ the activity but she was too ill.
　　2.It will be easiest if we __________ them into groups.
　　3.They were hoping to ____________ 40 miles yesterday.
　　4.She tries to do ____________ of exercise every day.
　　5.David watched her car until it ____________ from view.
　　Ⅲ.单项填空
　　1.We ________ the cake ________ ten parts，and each of us took one share.
　　A.from　　　　　　B.into
　　C.from D.by
　　2.Will you________us________singing the song?
　　A.in B.in
　　C.in D.with
　　3.—May I have a talk with one of your sports reporters?
　　—Sorry，but all of them are out to________the main events of the day.
　　A.get B.find
　　C.cover D.search
　　4.—Oh，dear!I’ve just broken a window.
　　—________.It can’t be helped.
　　A.Never mind B.All right
　　C.That’s fine D.Not at all
　　5.—Skating’s just a matter of practice.
　　—Yes，well，________.
　　A.so diving is B.so has diving
　　C.so is diving D.so diving has
　　【名师答疑代码】
　　6.—We are having a party this evening.
　　—________.
　　A.For fun B.Make fun
　　C.Have fun D.Get a fun
　　7.China Daily is________it can help us with our English.
　　A.no more than B.more than
　　C.not more than D.better than
　　8.I am going to take a trip to Europe________this month.
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1.75亿学生的选择
求一道高中必修一最难的化学题?我们刚来新化学老师,想给他个下马威,请大家支援一道有难度的高中化学必修一的题!谢谢!
东村N嵻洶巍抯
A和B可以相互转化,
B在沸水中生成C,这个化学题就完成了.
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