【课时作业 必修1】章节综合训练+参考答案
人教版高中物理必修1课时作业参考答案
人教版高中物理必修1课时作业参考答案第一章运动的描述参考答案课时1 1．CD 2．AD 3．BD 4．BD 5．D 6．CD 7．ABD 8．B 9．不能10．70,0,30,70,30-++-向东，，向西11．4m,3m-，(4,3)m m，(3,2)m m--12．（1）直线坐标系（2）平面直角坐标系课时21．ABD 2．D 3．ABC 4．D 5．BC 6．AC 7．B 8．3，5 9．4R-，2Rπ10．2x∆，1x∆和3x∆11．3,2,5;3,4,7m m m m m m---12．（1）(2,2),(2,5),(6,5)m m m m m m（2）3,4m m（3）5m，由A指向C 13．（1）2,2m m（2）2,4m m（3）0,8m课时3 1．C 2．ACD 3．A 4．CD 5．CD 6．ABC 7．84.210⨯8．12122v vv v+，122v v+ 9．6.4/m s10．49.9km11．3312．平均，12.5，14，瞬时，1413．39min课时41．C 2．B 3．AB 4．BCD 5．D 6．C 7．D 8．C 9．（1）ABDEC（2）墨粉纸盘，限位孔10．变速运动，略，略，略，略。
提示：测量长度时读到0.1mm，最后计算结果保留两位有效数字。
11．0.19/ABv m s=，0.60/BCv m s=，0.60/CDv m s=，0.595/DEv m s=；在误差允许的范围内，物体运动的性质是先做加速运动，后做匀速运动。
第 - 2 - 页课时51．CD 2．ACD 3．BCD 4．B 5．BD 6．B 7．AB 8．B9．300 ，竖直向上10．43.211．略2．有危险第二章匀变速直线运动的研究参考答案课时1 1．AB 2．ACD 3．BC 4．C 5．C 6．（1）16.50；21.40；26.30；31.35；36.30（2）作图：略（3）小车运动的v t-图象是一条倾斜向上的直线，说明速度随时间均匀增加，它们成线性关系。
高中数学(苏教版必修一)配套课时作业：第一章 集 合1.2 -含答案
§1.2子集、全集、补集课时目标 1.理解子集、真子集的意义，会判断两集合的关系.2.理解全集与补集的意义，能正确运用补集的符号.3.会求集合的补集，并能运用Venn图及补集知识解决有关问题．1．子集如果集合A的__________元素都是集合B的元素(若a∈A则a∈B)，那么集合A称为集合B的________，记作______或______．任何一个集合是它本身的______，即A⊆A.2．如果A⊆B，并且A≠B，那么集合A称为集合B的________，记为______或(______)．3．______是任何集合的子集，______是任何非空集合的真子集．4．补集设A⊆S，由S中不属于A的所有元素组成的集合称为S的子集A的______，记为______(读作“A在S中的补集”)，即∁S A＝{x|x∈S，且x∉A}．5．全集如果集合S包含我们所要研究的各个集合，这时S可以看做一个______，全集通常记作U.集合A相对于全集U的补集用Venn图可表示为一、填空题1．集合P＝{x|y＝x＋1}，集合Q＝{y|y＝x－1}，则P与Q的关系是________．2．满足条件{1,2}M⊆{1,2,3,4,5}的集合M的个数是________．3．已知集合U＝{1,3,5,7,9}，A＝{1,5,7}，则∁U A＝________.4．已知全集U＝R，集合M＝{x|x2－4≤0}，则∁U M＝________.5．下列正确表示集合M＝{－1,0,1}和N＝{x|x2＋x＝0}关系的Venn图是_____________________________．6．集合M＝{x|x＝3k－2，k∈Z}，P＝{y|y＝3n＋1，n∈Z}，S＝{z|z＝6m＋1，m∈Z}之间的关系是________．7．设U＝{0,1,2,3}，A＝{x∈U|x2＋mx＝0}，若∁U A＝{1,2}，则实数m＝________. 8．设全集U＝{x|x<9且x∈N}，A＝{2,4,6}，B＝{0,1,2,3,4,5,6}，则∁U A＝________，∁U B ＝______，∁B A＝________.9．已知全集U，A B，则∁U A与∁U B的关系是____________________．二、解答题10．设全集U＝{x∈N*|x<8}，A＝{1,3,5,7}，B＝{2,4,5}．(1)求∁U(A∪B)，∁U(A∩B)；(2)求(∁U A)∪(∁U B)，(∁U A)∩(∁U B)；(3)由上面的练习，你能得出什么结论？请结事Venn图进行分析．11．已知集合A＝{1,3，x}，B＝{1，x2}，设集合U＝A，求∁U B.能力提升12．设全集是数集U＝{2,3，a2＋2a－3}，已知A＝{b,2}，∁U A＝{5}，求实数a，b的值．13．已知集合A＝{x|1<ax<2}，B＝{x|－1<x<1}，求满足A⊆B的实数a的取值范围．1．子集概念的多角度理解(1)“A是B的子集”的含义是：集合A中的任何一个元素都是集合B的元素，即由任意x∈A能推出x∈B.(2)不能把“A⊆B”理解成“A是B中部分元素组成的集合”，因为当A＝∅时，A⊆B，但A中不含任何元素；又当A＝B时，也有A⊆B，但A中含有B中的所有元素，这两种情况都有A⊆B.2．∁U A的数学意义包括两个方面：首先必须具备A⊆U；其次是定义∁U A＝{x|x∈U，且x∉A}，补集是集合间的运算关系．3．补集思想做题时“正难则反”策略运用的是补集思想，即已知全集U，求子集A，若直接求A困难，可先求∁U A，再由∁U(∁U A)＝A求A.§1.2子集、全集、补集知识梳理1．任意一个子集A⊆B B⊇A子集 2.真子集A B B A3．空集空集 4.补集∁S A 5.全集作业设计1．P Q解析∵P＝{x|y＝x＋1}＝{x|x≥－1}，Q＝{y|y≥0}，∴P Q.2．7解析M中含三个元素的个数为3，M中含四个元素的个数也是3，M中含5个元素的个数只有1个，因此符合题意的共7个．3．{3,9}解析在集合U中，去掉1,5,7，剩下的元素构成∁U A.4．{x|x<－2或x>2}解析∵M＝{x|－2≤x≤2}，∴∁U M＝{x|x<－2或x>2}．5．②解析由N＝{－1,0}，知N M.6．S P＝M解析运用整数的性质方便求解．集合M、P表示成被3整除余1的整数集，集合S表示成被6整除余1的整数集．7．－3解析∵∁U A＝{1,2}，∴A＝{0,3}，故m＝－3.8．{0,1,3,5,7,8}{7,8}{0,1,3,5}解析由题意得U＝{0,1,2,3,4,5,6,7,8}，用Venn图表示出U，A，B，易得∁U A＝{0,1,3,5,7,8}，∁U B＝{7,8}，∁B A＝{0,1,3,5}．9．∁U B∁U A解析画Venn图，观察可知∁U B∁U A.10．解 (1)∵U ＝{x ∈N *|x <8}＝{1,2,3,4,5,6,7}，A ∪B ＝{1,2,3,4,5,7}，A ∩B ＝{5}，∴∁U (A ∪B )＝{6}，∁U (A ∩B )＝{1,2,3,4,67}．(2)∵∁U A ＝{2,4,6}，∁U B ＝{1,3,6,7}，∴(∁U A )∪(∁U B )＝{1,2,3,4,6,7}，(∁U A )∩(∁U B )＝{6}． (3)∁U (A ∪B )＝(∁U A )∩(∁U B )(如左下图)；∁U (A ∩B )＝(∁U A )∪(∁U B )(如右下图)．11．解 因为B ⊆A ，因而x 2＝3或x 2＝x . ①若x 2＝3，则x ＝±3.当x ＝3时，A ＝{1,3，3}，B ＝{1,3}，此时∁U B ＝{3}；当x ＝－3时，A ＝{1,3，－3}，B ＝{1,3}，U ＝A ＝{1,3，－3}，此时∁U B ＝{－3}． ②若x 2＝x ，则x ＝0或x ＝1.当x ＝1时，A 中元素x 与1相同，B 中元素x 2与1也相同，不符合元素的互异性，故x ≠1； 当x ＝0时，A ＝{1,3,0}，B ＝{1,0}，U ＝A ＝{1,3,0}，从而∁U B ＝{3}． 综上所述，∁U B ＝{3}或{－3}或{3}． 12．解 ∵∁U A ＝{5}，∴5∈U 且5∉A .又b ∈A ，∴b ∈U ，由此得⎩⎪⎨⎪⎧a 2＋2a －3＝5，b ＝3.解得⎩⎪⎨⎪⎧ a ＝2，b ＝3或⎩⎪⎨⎪⎧a ＝－4，b ＝3经检验都符合题意．13．解 (1)当a ＝0时，A ＝∅，满足A ⊆B . (2)当a >0时，A ＝{x |1a <x <2a}．又∵B ＝{x |－1<x <1}，A ⊆B ，∴⎩⎨⎧1a≥－1，2a ≤1，∴a ≥2.(3)当a <0时，A ＝{x |2a <x <1a}．∵A ⊆B ，∴⎩⎨⎧2a≥－1，1a ≤1，∴a ≤－2.综上所述，a＝0或a≥2或a≤－2.。
人教版数学必修一课时作业附答案3.1.2附答案
[基础巩固](25分钟，60分)一、选择题(每小题5分，共25分)1．用二分法求如图所示函数f(x)的零点时，不可能求出的零点是()A．x1B．x2C．x3D．x4解析：观察图象可知：零点x3的附近两边的函数值都为负值，所以零点x3不能用二分法求出．答案：C2．下列关于函数y＝f(x)，x∈[a，b]的叙述中，正确的个数为()①若x0∈[a，b]且满足f(x0)＝0，则(x0,0)是f(x)的一个零点；②若x0是f(x)在[a，b]上的零点，则可用二分法求x0的近似值；③函数f(x)的零点是方程f(x)＝0的根，但f(x)＝0的根不一定是函数f(x)的零点；④用二分法求方程的根时，得到的都是近似值．A．0 B．1C．3 D．4解析：①中x0∈[a，b]且f(x0)＝0，所以x0是f(x)的一个零点，而不是(x0,0)，故①错误；②由于x0两侧函数值不一定异号，故②错误；③方程f(x)＝0的根一定是函数f(x)的零点，故③错误；④用二分法求方程的根时，得到的根也可能是精确值，故④错误．故选A.答案：A3．用二分法研究函数f(x)＝x5＋8x3－1的零点时，第一次经过计算得f(0)<0，f(0.5)>0，则其中一个零点所在的区间和第二次应计算的函数值分别为()A．(0,0.5)，f(0.125) B．(0.5,1)，f(0.875)C．(0.5,1)，f(0.75) D．(0,0.5)，f(0.25)[能力提升](20分钟，40分)11．设f(x)＝3x＋3x－8，用二分法求方程3x＋3x－8＝0在x∈(1,3)内近似解的过程中取区间中点x0＝2，那么下一个有根区间为() A．(1,2) B．(2,3)C．(1,2)或(2,3) D．不能确定解析：因为f(1)＝31＋3×1－8＝－2<0，f(3)＝33＋3×3－8＝28>0，f(2)＝32＋3×2－8＝7>0，所以f(1)f(2)<0，所以f(x)＝0的下一个有根的区间为(1,2)．答案：A12．在26枚崭新的金币中，有一枚外表与真金币完全相同的假币(质量小一点)，现在只有一台天平，则应用二分法的思想，最多称________次就可以发现这枚假币．解析：将26枚金币平均分成两份，放在天平上，则假币一定在质量小的那13枚金币里面；从这13枚金币中拿出1枚，然后将剩下的12枚金币平均分成两份，放在天平上，若天平平衡，则假币一定是拿出的那一枚；若不平衡，则假币一定在质量小的那6枚金币里面；将这6枚金币平均分成两份，放在天平上，则假币一定在质量小的那3枚金币里面；从这3枚金币中任拿出2枚放在天平上，若天平平衡，则剩下的那一枚即是假币；若不平衡，则质量小的那一枚即是假币．综上可知，最多称4次就可以发现这枚假币．答案：413．求出函数F(x)＝x5－x－1的零点所在的大致区间．解析：函数F(x)＝x5－x－1的零点即方程x5－x－1＝0的根．由方程x5－x－1＝0，得x5＝x＋1.令f(x)＝x5，g(x)＝x＋1.。
【新课标高中同步辅导】高一人教版化学必修1课时作业综合测评1 Word版含答案[ 高考]
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综合测评(一)(教师用书独具)(考试时间50分钟，本试卷满分100分)一、选择题(本题包括12小题，每小题5分，共60分，每小题只有一个选项符合题意。
)1．图标所警示的是()A．当心火灾——氧化物B．当心火灾——易燃物质C．当心爆炸——自燃物质D．当心爆炸——爆炸性物质【解析】题中给出的图标是火焰，应是易燃物质标志，故选B。
易爆物质的图标是。
【答案】 B2．(2015·福州高一检测)进行化学实验时必须注意安全，下列说法不正确的是()①不慎将酸溅到眼中，应立即用大量水冲洗，边洗边眨眼睛②不慎将浓碱溶液沾到皮肤上，要立即用大量水冲洗，然后涂上硼酸溶液③不慎将浓盐酸洒在桌面上，应立即用浓氢氧化钠溶液冲洗④配制稀硫酸时，可先在量筒中加入一定体积的水，再边搅拌边慢慢加入浓硫酸⑤酒精灯着火时可用水扑灭A．①②③B．②③④C．③④⑤D．全部【解析】③中不能用NaOH溶液冲洗；④中不能在量筒中稀释；⑤酒精灯着火不能用水扑灭，应用湿布盖灭。
【答案】 C3．实验中的下列操作正确的是()A．取用试剂瓶中的Na2CO3溶液，发现取量过多，为了不浪费，又把过量的试剂倒入试剂瓶中B．把NaOH固体放在托盘天平左盘的滤纸上称量C．用蒸发的方法使NaCl从溶液中析出时，应将蒸发皿中NaCl溶液全部加热蒸干D．用浓硫酸配制一定物质的量浓度的稀硫酸时，浓硫酸溶于水后，应冷却至室温才能转移到容量瓶中【解析】为防止污染试剂，多余Na2CO3溶液不能倒入试剂瓶，A项错误；NaOH具有腐蚀性，不能放在滤纸上称量，B项错误；蒸发结晶NaCl时，应有大量晶体析出时停止加热，利用余热蒸干，C项错误。
【答案】 D4．如果不小心在食用油中混入部分水，请你选用下列最简便的方法对油水混合物进行分离()【解析】食用油为不溶于水的液体，油、水混合物可以用分液的方法进行分离。
【答案】 B5．(2015·哈尔滨三十二中月考)下列有关化学实验的操作中，一般情况下不能相互接触的是()A．过滤操作中，玻璃棒与三层滤纸B．过滤操作中，漏斗下端管口与烧杯内壁C．分液操作中，分液漏斗下端管口与烧杯内壁D．用胶头滴管向试管滴加液体时，滴管尖端与试管内壁【解析】为防止液体迸溅，故在过滤时玻璃棒应与三层滤纸接触、漏斗下端管口应与烧杯内壁接触，A、B项正确；分液时，分液漏斗的下端管口应与烧杯内壁接触，C项正确；若胶头滴管的尖端与试管内壁接触，当滴管放回原试剂瓶时，容易污染原试剂，D项错误。
2021-2022学年人教版高一英语必修1课时作业(课标卷)综合检测卷(二) Word版含答案
综合检测卷(二)Unit 2English around the world(时间：100分钟；满分：120分)Ⅰ.阅读理解(共15小题；每小题2分，满分30分)AEnglish is the most widely used language in the history of our planet.One in every seven human beings can speak it.More than half of the world's books and three quarters of international mails are in English.Of all languages，English has the largest vocabulary—perhaps as many as two million words.However，let's face it：English is a crazy language.There is no egg in an eggplant，neither pine nor apple in a pineapple and no ham in a hamburger.Sweetmeats are candy，while sweetbreads，which aren't sweets，are meat.We take English for granted.But when we explore its paradoxes (冲突)，we find that quicksand can work slowly，boxing rings are square，public bathrooms have no baths in them.And why is it that a writer writes，but fingers don't fing，grocers don't groce，and hammers don't ham? If the plural(复数) of tooth is teeth，shouldn't the plural of booth be beeth？One goose，two geese—so one moose，two meese?How can a slim chance and a fat chance be the same，while a wise man and a wise guy are opposites? How can overlook and oversee be opposites，while quite a lot and quite a few are alike？How can the weather be hot as hell one day and cold as hell the next?English was invented by people，not computers，and it reflects the creativity of human beings.That's why，when stars are out，they are visible；but when the lights are out，they are invisible.And why，when I wind up my watch，I start it；but when I wind_up this essay，I end it.1．According to the passage ________．A．sweetmeats and sweetbreads are different thingsB．there should be egg in an eggplantC．pineapples are the apples on the pine treeD．boxing rings should be round2．Which of the following is the correct plural?A．Beeth.B．Geese.C．Meese. D．Tooth.3．The underlined words “wind up” in the last paragraph probably mean “________”．A．blow B．roll upC．get hurt D．finish4．Through the many paradoxes in the English language，the writer wants to show that human beings are________．A．clever B．crazyC．lazy D．dullBEnglish has surely become the global language.Whenever we turn on the news to find out what's happening in East Asia，or Africa，or anywhere，people are being interviewed and telling us about it in English.If people look at the facts about the amazing reach of the English language，many would besurprised.English is used in over 90 countries as an official or semi－official language.English is the working language of many international institutes(争辩所)as well as of most international research scientists.It is also the language that Indian parents and black parents wish their children to learn.It is believed that over one billion people worldwide are now learning English.One of the most important causes of the spread of English around the world is that Europeans are willing to accept it as their language.English is spreading from northern Europe to the south and is now the second language in countries such as Sweden，Norway，Netherlands and Denmark.If one visits any of them，it would seem that almost everyone there can talk in English.Recently，a report said that at the beginning of 2001，English was the most widely known foreign language with 43% of Europeans saying they spoke it.The report also said that with over 89% of the population speaking English，Sweden now has the highest percentage of English speakers.What's more，English is the language rated as most useful to know，and over 77% of Europeans who do not speak English as their first language consider it useful.5．By writing this passage，the writer mainly wants to tell us ________．A．why so many people speak English around the worldB．that English has become a language spoken all over the worldC．about the development of English in EuropeD．something about the English－speaking countries6．The writer mentions all of the following EXCEPT ________．A．Asia B．EuropeC．Africa D．America7．What does the underlined word“rated”in the last paragraph mean?A．Stood. B．Agreed.C．Considered. D．Argued.8．What can we learn from the passage?A．Black parents don't want their children to learn English.B．English is used in over 90 countries as an official language.C．Not all international research scientists speak English at work.D．English has become the most important language in Sweden.CAn 80－year－old man was sitting on the sofa in his house along with his 45－year－old highly educated son.Suddenly a crow (乌鸦)perched on the tree near their window.The father asked his son，“What is this？”The son replied，“It is a crow.”After a few minutes，the father asked his son the 2nd time，“What is this？”The son said，“Father，I have just now told you ‘It's a crow.'”After a little while，the old father again asked his son the 3rd time，“What is this？”“It's a crow，a crow，a crow，”said the son loudly.A little after，the father again asked his son the 4th time，“What is this？”This time the son shouted at his father，“Why do you keep asking me the same question again and again? ‘IT IS A CROW'.Are you not able to understand this？”A little later，the father went to his room and came back with an old diary，which he had kept since his son was born.Opening a page，he asked his son to read that page.When the son read it，the following words were written inthe diary：“Today my little son aged three was sitting with me on the sofa，when a crow was sitting on the window.My son asked me 23 times what it was，and I replied to him all 23 times that it was a crow.I hugged him lovingly each time he asked me the same question again and again for 23 times.I did not at all feel annoyed.I rather felt affection for my innocent child.”9．In what tone did the son say to his father “It's a crow，a crow，a crow”？A．Hurried. B．Impatient.C．Excited. D．Surprised.10．Why did the father ask the same question again and again？A．Because he couldn't understand what his son said.B．Because he was too old to remember anything.C．Because he wanted to make his son angry.D．Because he wanted to see how patient his son would be.11．How old was the old man when his son asked him 23 times “What is this？” ?A．80 years old. B．45 years old.C．38 years old. D．35 years old.12．What is the most suitable title for the passage?A．A Crow B．An Old ManC．An Old Dairy D．Father's LoveDAmerican high school students are terrible writers，and one education reform group thinks it has an answer：robots.Or，more accurately，robot－readers—computers programmed to scan students'essays and spit_out a grade.Mark Shermis，professor of the College of Education at the University of Akron，is helping to hold a contest，set up by the William and Flora Hewlett Foundation( WFHF)，that promises $100，000 in prize money to programmers who write the best automated grading software.“If you're a high school teacher and you give a writing task，you're walking home with 150 essays，”Shermis said.“You're going to need some help.”Automated essay grading was first proposed in the 1960s，but computers back then were not up to the task.In the late 1990s，as technology improved，several textbooks and testing companies jumped into the field.Today，computers are used to grade essays on South Dakota's student writing assessments and a handful of other exams，including the TOEFL test of English fluency，taken by foreign students.The Hewlett contest aims to show that computers can grade as well as English teachers—only much more quickly and without all that depressing red ink.“Automated essay scoring is objective，”Shermis said.“And it can be done immediately.If students finish an essay at 10 pm，they will get a result at 10：01 pm.”Take，for instance，the Intelligent Essay Assessor，a web－based too marketed by Pearson Education，Inc.Within seconds，it can analyze an essay for spelling，grammar，organization，and help students to make revisions.The program scans for key words and analyzes semantic(语义的) patterns，and Pearson claims that it can understand the meaning of text much the same as a human reader.13．From Paragraph 3，we know that in the 1960s ________．A．computers were not easy to getB．automated grading software was popularC．people refused automated essay gradingD．computers couldn't grade essays automatically14．What does Paragraph 4 focus on?A．The prize of Hewlett contest.B．The advantages of automated essay scoring.C．The application of automated essay scoring.D．Teachers'opinions about Hewlett contest.15．The Intelligent Essay Assessor can ________．A．rewrite essaysB．underline the mistakes in red inkC．understand the meaning of textD．correct key words and patternsⅡ.阅读填句(共5小题；每小题2分，满分10分)依据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
人教版高一英语必修1课时作业(课标卷)综合检测卷(一) 含答案
综合检测卷(一)Unit 1 Friendship(时间：100分钟；满分：120分)Ⅰ.阅读理解(共15小题；每小题2分，满分30分)AMembers of a high school class of 1943 finally got the party they should have had 70 years ago.Their senior celebration was stopped by World War Ⅱ.Anthony Pegnataro，the 1943 class president of James Hillhouse High School，remembers the attack on Pearl Harbor like it was yesterday.On December 7th，1941，Pegnataro said，he and his friends were skating when they heard over the radio that America had entered a state of war.Going to war meant no party any more.Pegnataro's carefree high school life suddenly came to an end.“Most of us went right into the service after graduation，”Pegnataro said.“We graduated in June and were in the army in July.”Of the 1，585 students at James Hillhouse High School，less than 300 are still alive today and many of them never made it back from war.Pegnataro，who is now 87，decided that along with their 70－year class reunion (重聚)，they would also hold that party they never got to have.About 70people from around the country came to dance on Sunday.“It was excellent.Everyone there just had a great time，”Pegnataro said.“Those that came guessed it might be their last one.”Pegnataro said he_was_on_cloud_nine to bring his wife of 53 years back to the party，and he introduced her to each of his classmates.“Everyone was very excited at the party.Though we had been separated for so many years，the war brought my class closer together，”he said.“We missed out on the party that we should have had.And the 70th reunion was a very important event in our lives，”Pegnataro said.“We all made it.”1．When Pearl Harbor was attacked，Pegnataro ________．A．went into the army at onceB．was skating with his parentsC．was having a Christmas partyD．was still a high school student2．The underlined part “he was on cloud nine” meant Pegnataro________．A．was on a plane B．felt very happyC．was not comfortable D．came at nine o'clock3．In Pegnataro's opinion，the war ________．A．had its own two sidesB．made him lose everythingC．had little influence on his schoolD．lasted longer than he had expected4．What would be the best title for the text?A．Pegnataro—a man of knowledgeB．James Hillhouse High SchoolC．An unusual partyD．War and peaceBMy friend Jason and I wanted to do something to help other people who are less fortunate and help us grow at the same time.After we decided that we would volunteer in Nepal，I did some research on the Internet and I found Volunteer Nepal and felt strongly that it was the right choice for us.While making our plans，Jason and I realized that others might like the opportunity to be a part of our experience.So before leaving for Nepal，we asked the people we know whether they would be interested in donating (捐赠) cash or goods to Nepal Orphans(孤儿) Home.One friend，whose family owns a chain called Drake Supermarket，told others about it.His effort paid off.We received donations that filled 29 boxes with sporting goods，toys，coloring books，pencils，children's books，and more.The boxes were later taken to Drake's warehouse where I prepared them for shipment.Drake agreed to ship them to Nepal for free.The boxes had arrived at the Volunteer House when we arrived there.The。
【高中英语新教材必修一】课时作业(带答案)
Ⅰ.单句语法填空1.The little child was frightened the dog.2.During his many (lecture),he discusses his experiences and how they have changed his point of view.3.He showed up late for (register).4.The crew are of different (nation) and have no common language.5.I’m (annoy) that he didn’t show up when he said he would come.6.His statues stand on different university (campus).7.He had little (form) schooling when he was young.8.As far as I know,the course is designed beginners.9.The tennis players need total (concentrate) during play.10.The experts (explore) every part of the island now.11.We have full (confident) that we shall succeed.Ⅱ.用适当的介词填空1.He was waiting for his brother’s return anxiety.2.We were deeply impressed the painting that day.3.He has told me his plans and he’s made a good impression me.4.You must concentrate your attention improving your English.5.He got annoyed the boy for being so stupid.6.He is confident his ability to achieve success.Ⅲ.用短语的适当形式填空1.Frank ,so the manager gave him the job.2.After several delays,he set out at 8 o’clock .3.They said that they had been for 3 days with no food in the house.4.Don’t take yourself too seriously:so you make a mistake?5.I cannot my attention my book with all that loud music going on.参考答案：Ⅰ.1.of2.lectures3.registration4.nationalities5.annoyed6.campuses7.formal8.for9.concentration10.are exploring11.confidence二、1.with2.by/with3.on4.on5.with6.in/about三、1.made a good impression2.at last3.left alone4.what if5.concentrate onUNIT1TEENAGE LIFE课后篇巩固提升Ⅰ.单句语法填空1.Schools need (volunteer) to help children to read.2.The question of the origin of the universe is still hotly (debate).3.He made a small (move) with his right hand.4.Would now be a (suit) moment to discuss my report?5.There are lots of people there who can (actual) help you.Ⅱ根据教材P12Conversation3的内容填空。
2019-2020学年高一英语人教版必修一课时作业：Unit1FriendshipWord版含答案
Unit 1课时作业1、(ignore) the difference between two research findings will be one of the worst mistakes you make.2、It is no pleasure (join) in your walking.3、While(walk) your dog, you should not loosen the rope to let the dog run around.4、The room has been empty for a long time and all the furniture is(dust).5、To be honest, I was(entire) frightened by the thunder just now.6、As far as I am(concern) , children should often play outdoors.7、I have to get my car (repair) before going to work.8、(actual) it is one of the smallest planets, and only looks big because it is so near to us.9、The two countries haven t signed the (agree).10、We all hope that she can make a full (recover).11、The manager expressed some (disagree) about the suggestion.12、Each comer had a guard tower , which was (exact) ten metres in height.13、Her mother is hard on everyone and difficult(get) along with.14、一What's wrong with him?— He(suffer) from a bad cold.15、Everyone has his own attitude to helping others and I would be(grate) if you could give me a hand.16、I was never very neat,while my roommate Kate was extremely oiganized. Each of her objects had itsplace, but mine always hid somewhere. She even labeled(贝占标签)everything. I always looked for everything. Over time, Kate got neater and I got messier. She would push my dirty clothing over, and Iwould lay my books on her tidy desk. We both got tired of each other.War broke out one evening. Kate came into the room. Soon, I heard her screaming, "Take your shoesaway! Why under my bed!" Deafened, I saw my shoes flying at me. I jumped to my feet and started yelling. She yelled back louder.The room was filled with anger. We could not have stayed together for a single minute but for a phonecall. Kate answered it. From her end of the conversation, I could tell right away her grandma was seriously ill. When she hung up, she quickly crawled（爬） under her covers, sobbing. Obviously, that was something she should not go through alone. All of a sudden, a warm feeling of sympathy rose up in my heart.Slowly, I collected the pencils, took back the books, made my bed, cleaned the socks and swept thefloor even on her side. I got so into my work that I even didn ‘t notice Kate had sat up. She was watching,her tears dried and her expression one of disbelief. Then, she reached out her hands to grasp mine. Ilooked up into her eyes. She smiled at me, "Thanks."Kate and I stayed roommates for the rest of the year. We didn ’t always agree, but we learned the keyto living together: giving in, cleaning up and holding on.1.What made Kate so angry one evening?A.She couldn't find her books.B.She heard the author shouting loud.C.She got the news that her grandma was ill.D.She saw the author's shoes beneath her bed.2.The author tidied up the room most probably because ____________ .A.she was scared by Kate's angerB.she hated herself for being so messyC.she wanted to show her careD.she was asked by Kate to do so3.How is Paragraph 1 mainly developed?A.By analyzing causes.B.By showing differences.C.By describing a process.D.By following time order.4.What might be the best title for the story?A.My Friend KateB.Hard Work Pays OffD.Learning to Be RoommatesC.How to Be OrganizedParents often believe that they have a good relationship with their teenagers. But last summer,17、Joanna and Henry noticed a change in their older son. Suddenly he seemed to be talking far more to his friends than to his parents. "The door to his room is always shut," Joanna noted.Tina and Mark noticed similar changes in their 14-year-old daughter. "She used to cuddle up （依偎）against me on the sofa and talk," said Mark. "Now we joke that she does this only when she wants something. Sometimes she wants to be treated like a little girl and sometimes like a young lady. The problem is understanding which time is which."Before age 11, children like to tell their parents what 's on their mind. "In fact, parents are first on the list," said Michael Riera, author of Uncommon Sense for Parents with Teenagers. "This completely changes during the teen years," Riera explained. "They talk to their friends first, then maybe their teachers, and their parents last."Parents who know what 's going on in their teenagers' lives are in the best position to help them. Tobreak down the wall of silence, parents should create chances to understand what their children want to say, and try to find ways to talk and write to them. And they must give their children a mental （思想的）break, for children also need freedom, though young. Another thing parents should remember is that to be a friend, not a manager, with their children is a better way to know them.1."The door to his room is always shut" suggests that the sonA.keeps himself away from his parentsB.begins to dislike his parentsC.is always busy with his studyD.doesn't want to be ignored2.What troubles Tina and Mark most is thatA.their daughter isn't as lovely as beforeB.they don't know what to say to their daughterC.they can't read their daughter's mind exactlyD.their daughter talks with them only when she needs help3.Which of the following best explains "the wall of silence" in the last paragraph?A.Teenagers talk a lot with their friends.B.Teenagers do not talk much with their parents.C.Teenagers do not want to understand their parents.D.Teenagers talk little about their own lives.4.We can learn from the passage that .A.parents are unhappy with their growing childrenB.parents have to talk with children face to faceC.parents shouldn't be angry with teenagersD.parents should try to understand their teenagers18、英语课上，老师要求同桌之间相互修改作文。
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单元质量评估
（120分钟150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.已知向量a=(1,1
,2),b=(2,-1,k),且a与b互相垂直,则k的值是( )
2
A.-1
B.3
C.1
D.-3
2.若a,b,c是空间任意三个向量,λ∈R,下列关系中,不成立的是( )
A.a+b=b+a
B.λ(a+b)=λa+λb
C.(a+b)+c=a+(b+c)
D.b=λa
3如图,空间四边形ABCD中,E,F分别是BC,CD的中点,则AB→+1BC→+1BD→等于( )
A.AD→
B.FA→
C.AF→
D.EF→
4.若A(1,-2,1),B(4,2,3),C(6,-1,4),则△ABC的形状是( )
A.不等边锐角三角形
B.直角三角形
- 1 -
C.钝角三角形
D.等边三角形
5.已知平面α的一个法向量为n1=(-1,-2,-1),平面β的一个法向量n2=(2,4,2),则不重合的平面α与平面β( )
A.平行
B.垂直
C.相交但不垂直
D.不确定
6.若a=e1+e2+e3,b=e1+e2-e3,c=e1-e2+e3,d=e1+2e2+3e3,d=αa+βb+γc,则α,β,γ分别为( )
A.5
2,-1,-1
2
B.5
2
,1,1
2
C.-5
2,1,-1
2
D.5
2
,1,-1
2
7.(2013·吉安高二检测)已知直线l1的方向向量a=(2,4,x),直线l2的方向向量b=(2,y,2),若|a|=6,且a⊥b,则x+y的值是( )
A.1或-3
B.-1或3
C.-3
D.1
8.已知A(1,-1,2),B(2,3,-1),C(-1,0,0),则△ABC的面积是( )
A.√70
B.√35
C.√170
D.√35
9.下列命题正确的是( )
A.若OP→=1
2OA→+1
3
OB→,则P,A,B三点共线
B.若{a,b,c}是空间的一个基底,则{a+b,b+c,a+c}构成空间的另一个基底
- 1 -
- 1 -
C.(a ·b )·c =|a |·|b |·|c |
D.△ABC 为直角三角形的充要条件是AB →
·AC →
=0
10.如图所示,四边形ABCD 为矩形,AB=3,BC=1,EF ∥BC 且AE=2EB,G 为BC 的中点,K 为△ADF 的外心.沿EF 将矩形折成一个120°的二面角A-EF-B,则此时KG 的长是
( )
A.1
B.3
C.√3
2
D.√3
11.如图所示,在棱长为1的正方体ABCD-A 1B 1C 1D 1中,E,F 分别为棱AA 1,BB 1的中点,G 为棱A 1B 1上的一点,且A 1G=λ(0≤λ≤1),则点G 到平面D 1EF 的距离为( ) A.√3
B.√2
2
C.√2
3
D.√5
5
12.如图,在长方体ABCD-A 1B 1C 1D 1中,AB=BC=2,AA 1=1,则BC 1与平面BB 1D 1D 所成角的正弦值为( )
A.√6
3B.2√5
5
C.√15
5
D.√10
5
二、填空题(本大题共4小题,每小题5分,共20分.请把正确答案填在题中横线上)
13.已知向量a=(λ+1,0,2λ),b=(6,2μ-1,2),若a∥b,则λ与μ的值分别是、.
14.若A(0,2,19
8),B(1,-1,5
8
),C(-2,1,5
8
)是平面α内的三点,设平面α的法向量为
n=(x,y,z),则x∶y∶z= .
15.平面α,β,γ两两相互垂直,且它们相交于一点O,P点到三个面的距离分别是1cm,2 cm,3cm,则PO的长为cm.
16.如图,平面PAD⊥平面ABCD,四边形ABCD为正方形,∠
PAD=90°,且PA=AD=2,E,F分别是线段PA,CD的中点,则
异面直线EF与BD所成角的余弦值为.
三、解答题(本大题共6小题,共70分.解答时应写出必要的
文字说明、证明过程或演算步骤)
17.(10分)已知空间三点A(0,2,3),B(-2,1,6),
- 1 -。