2020-2021学年重庆开县实验中学高一英语上学期期末试题含解析
甘肃省部分名校2020-2021学年高一上学期期末考试英语试题精选汇编：书面表达专题
甘肃省部分名校2020-2021学年高一上学期期末考试英语试题精选汇编书面表达专题甘肃省静宁县第一中学2020-2021学年高一上学期期末考试英语试题第四部分书面表达（满分25分）近年来全球许多国家开始在公共场所禁止吸烟。
针对这个问题，你班同学组织了一场辩论会，请你根据下表内容，以“Should people stop smoking in public places?”为题，写一篇短文，客观介绍双方的不同观点, 并表达你自己的观点。
注意：1、词数：100左右；2、题目已给出，不计入总词数。
Should people stop smoking in public places?【答案】参考范文：Should people stop smoking in public places?Our class had a heated debate whose topic was about whether people should stop smoking in public places. Opinions vary on this topic.Some students agree that smoking is dangerous. Not only does smoking harm smokers themselves but also harm the people around them. Stopping smoking in public places would also urge smokers to smoke less or give it up.However, others hold an opposite view. They believe that it’s legal to smoke and smokers should have the freedom and right to smoke in any place they like. Besides, stopping smoking in public places would drive many bars, pubs or clubs out of business. What’s worse, many people will be out of job because of this.As far as I am concerned, stopping smoking in public places is really necessary for the benefit of both smokers and non-smokers.甘肃省兰州市第二十七中学2020-2021学年高一上学期期末考试英语试卷第三节书面表达（满分25分）假如你是高一学生李华，你想与一名叫王林的灾区同学成为朋友，并在学习上给予他一定的帮助，请给他写一封信，信的内容包括：1. 你个人的基本情况（年龄，爱好，特长，理想）;2. 向他介绍你的学习经验（至少两条）;3. 欢迎他到学校学习参观。
2020-2021学年高一英语下学期期末教学质量检测试题(含解析)
第二学期期末教学质量检测高一英语试卷考生注意:1.本试卷共150分，考试时间120分钟。
2.请将各题答案填写在答题卡上。
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.【此处有音频，请去附件查看】What are the speakers mainly talking about?A. Turning on the light.B. Power failure.C. Buyingair-conditioning.【答案】B【解析】【原文】W:The light has gone out!M: We often have power failure in this city when too many people are using air conditioning.2.【此处有音频，请去附件查看】How does the man usually go to work?A. By bus.B. By car.C. On foot.【答案】A【解析】【原文】W:Do you go to work on foot every day?M: Well. I'm too fat to walk a lot. I usually take a bus. But sometimes when the bus is crowded. I wish someone would give me a ride.3.【此处有音频，请去附件查看】What color does the man prefer to paint the bedroom?A. Light blue.B. Yellow.C. Pink.【答案】A【解析】【原文】W:Do you think we should paint our bedroom yellow or pink?M:Why not light blue?4.【此处有音频，请去附件查看】Where was the man last night?A. In the library.B. At home.C. At the concert. 【答案】B【解析】【原文】W: Hello. Tony. Where were you last night?M: I had to stay at home.W:But you missed a really wonderful concert!5.【此处有音频，请去附件查看】What do we know about the man?A. He likes driving.B. He enjoys traveling by car.C. He used to have a car.【答案】C【解析】【原文】W: You’ve sold your old car. You don’t need a new one?M:Not really. I’ve never liked driving anyway. Now that I’ve moved to a place near the subway entrance. I can go to work quite conveniently.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。
2020-2021学年重庆市高一上学期期中数学试题(解析版)
2020-2021学年重庆市高一上学期期中数学试题一、单选题1．已知集合{0,1,2}A =,则A 的子集个数为( ) A ．6 B ．7 C ．8 D ．16【答案】C【分析】根据子集的个数为2n (n 为集合元素的个数),即可求得答案. 【详解】{0,1,2}A =.根据子集的个数为2,n (n 为集合元素的个数)∴A 的子集个数328=.故选:C ．【点睛】本题考查了求集合子集个数问题,解题关键是掌握子集概念,考查了分析能力和计算能力,属于基础题.2．已知()f x 是偶函数，()g x 是奇函数，且2()()(1)f x g x x +=-，则(1)f -=（ ） A ．2 B ．2- C ．1 D ．1-【答案】A【分析】分别取1x =和1x =-，代入函数根据奇偶性得到答案. 【详解】()f x 是偶函数，()g x 是奇函数，2()()(1)f x g x x +=-，取1x =得到(1)(1)0f g +=，即(1)(1)0f g ---=；取1x =-得到(1)(1)4f g -+-=； 解得(1)2f -= 故选：A【点睛】本题考查了根据函数奇偶性求函数值，意在考查学生对于函数性质的灵活运用. 3．2()4f x ax bx a =+-是偶函数，其定义域为[1,2]a a --，对实数m 满足2()(1)f x m ≤+恒成立，则m 的取值范围是（ ） A ．(,3][1,)-∞-+∞ B ．[3,1]- C ．(,1][3,)-∞-⋃+∞ D ．[1,3]-【答案】A【分析】根据奇偶性得到0b =，1a =-得到2()4f x x =-+，计算函数的最大值，解不等式得到答案.【详解】2()4f x ax bx a =+-是偶函数，其定义域为[1,2]a a --，则0b =，且()12a a -=--即1a =-，故2()4f x x =-+，()max ()04f x f ==故24(1)m ≤+，解得m 1≥或3m ≤- 故选：A【点睛】本题考查了根据函数奇偶性求参数，函数最值，解不等式，意在考查学生的综合应用能力.4．若,a b ，R c ∈，a b >，则下列不等式成立的是 A ．11a b< B ．22a b > C ．||||a cbc >D ．()()2222a c b c +>+【答案】D【分析】结合不等式的性质，利用特殊值法确定. 【详解】当1,1a b ==-排除A ，B 当0c 排除C 故选：D【点睛】本题主要考查了不等式的性质，特殊值法，还考查了特殊与一般的思想，属于基础题.5．已知函数)25fx =+，则()f x 的解析式为（ ）A ．()21f x x =+ B ．()()212f x x x =+≥C ．()2f x x =D ．()()22f x x x =≥【答案】B【分析】利用换元法求函数解析式.【详解】2t =,则2t ≥，所以()()()()2224t 251,2,f t t t t =-+-+=+≥即()21f x x =+()2x ≥.故选：B【点睛】本题考查利用换元法求函数解析式，考查基本分析求解能力，属基础题.6．已知()f x 是定义域为R 的奇函数,当0x >时,()223f x x x =--,则不等式()20f x +<的解集是A ．()() 5,22,1--⋃-B ．()(),52,1-∞-⋃-C ．()(,1)52,--⋃+∞D ．(),1()2,5-∞-⋃【答案】B【分析】根据函数奇偶性的性质，求出函数当0x <时，函数的表达式，利用函数的单调性和奇偶性的关系即可解不等式. 【详解】解：若0x <，则0x ->，∵当0x >时，()223f x x x =--，∴()223f x x x -=+-，∵()f x 是定义域为R 的奇函数，∴()223()f x x x f x -=+-=-，即2()23f x x x =--+，0x <.①若20x +<，即2x <-，由()20f x +<得，()()222230x x -+-++<，解得5x <-或1x >-，此时5x <-；②若20x +>，即2x >-，由()20f x +<得，()()222230x x +-+-<，解得31x -<<，此时21x -<<，综上不等式的解为5x <-或21x -<<. 即不等式的解集为()(),52,1-∞-⋃-. 故选：B.【点睛】本题主要考查不等式的解法，利用函数的奇偶性的性质求出函数的解析式是解决本题的关键. 7．若函数()f x =R ，则实数a 的取值范围是（ ）A ．(0,4)B ．[0,2)C ．[0,4)D ．(2,4]【答案】C【分析】等价于不等式210ax ax ++>的解集为R, 结合二次函数的图象分析即得解. 【详解】由题得210ax ax ++>的解集为R, 当0a =时，1＞0恒成立，所以0a =.当0a ≠时，240a a a >⎧⎨∆=-<⎩，所以04a <<. 综合得04a ≤<.故选：C【点睛】本题主要考查函数的定义域和二次函数的图象性质，意在考查学生对这些知识的理解掌握水平.8．设函数22,()6,x x x af x ax x a⎧--≥⎪=⎨-<⎪⎩是定义在R 上的增函数，则实数a 取值范围（ ）A ．[)2,+∞B ．[]0,3C ．[]2,3D ．[]2,4【答案】D【分析】画出函数22y x x =--的图象，结合图象及题意分析可得所求范围．【详解】画出函数22y x x =--的图象如下图所示，结合图象可得，要使函数()22,,6,,x x x a x ax x a ⎧--≥⎪=⎨-<⎪⎩是在R 上的增函数，需满足22226a a a a ≥⎧⎨--≥-⎩，解得24x ≤≤． 所以实数a 取值范围是[]2,4． 故选D ．【点睛】解答本题的关键有两个：（1）画出函数的图象，结合图象求解，增强了解题的直观性和形象性；（2）讨论函数在实数集上的单调性时，除了考虑每个段上的单调性之外，还要考虑在分界点处的函数值的大小关系． 二、多选题9．若0a >，0b >，且2a b +=，则下列不等式恒成立的是（ ）A 1B ．11ab≥ C ．222a b +≥ D ．112a b+≥【答案】BCD【分析】由条件可得12211112a a b a b a abb b ab ++=≥+==⇒≥⇒≥，结合2222()()a b a b ++，即可得出．【详解】因为0a >，0b >，所以12211112a a b a b a abb b ab ++=≥+≤==⇒≥⇒≥， 所以A 错，BD 对；因为22222()()(0)a b a b a b -+=-≥+，则22222()()2a b a b ++=，化为：222a b +，当且仅当1a b ==时取等号，C 对． 故选：BCD ．【点睛】本题考查了不等式的基本性质以及重要不等式的应用，考查了推理能力与计算能力，属于基础题．10．给出下列命题，其中是错误命题的是（ ）A ．若函数()f x 的定义域为[0，2]，则函数(2)f x 的定义域为[0，4].B ．函数1()f x x=的单调递减区间是(,0)(0,)-∞+∞ C ．若定义在R 上的函数()f x 在区间(,0]-∞上是单调增函数，在区间(0,)+∞上也是单调增函数，则()f x 在R 上是单调增函数.D ．1x 、2x 是()f x 在定义域内的任意两个值，且1x <2x ，若12()()f x f x >，则()f x 减函数.【答案】ABC【分析】对于A ，由于()f x 的定义域为[0，2]，则由022x ≤≤可求出(2)f x 的定义域；对于B ，反比例函数的两个单调区间不连续，不能用并集符号连接；对于C ，举反例可判断；对于D ，利用单调性的定义判断即可【详解】解：对于A ，因为()f x 的定义域为[0，2]，则函数(2)f x 中的2[0,2]x ∈，[0,1]x ∈，所以(2)f x 的定义域为[0,1]，所以A 错误； 对于B ，反比例函数1()f x x=的单调递减区间为(,0)-∞和(0,)+∞，所以B 错误； 对于C ，当定义在R 上的函数()f x 在区间(,0]-∞上是单调增函数，在区间(0,)+∞上也是单调增函数，而()f x 在R 上不一定是单调增函数，如下图，显然，(1)(0)f f < 所以C 错误；对于D ，根据函数单调性的定义可得该选项是正确的， 故选：ABC11．若a ，b 为正数，则（ ）A ．2+aba bB ．当112a b+=时，2a b +≥C ．当11a b a b+=+时，2a b +≥D ．当1a b +=时，221113a b a b +≥++【答案】BCD【分析】利用基本不等式，逐一检验即可得解.【详解】解：对A ，因为+a b ≥2aba b≤+，当a b =时取等号，A 错误；对B ，()11111+=2+2=2222b a a b a b a b ⎛⎛⎫⎛⎫++≥+ ⎪ ⎪ ⎝⎭⎝⎭⎝，当a b =时取等号，B 正确；对C ，11=+=a ba b a b ab++，则1ab =，+2a b ≥=，当1a b ==时取等号，C 正确；对D ，()()()2222222211+111+111+b a a b a b a b a b a b a b b a ++⎛⎫+++=+++≥++ ⎪++⎝⎭2222()1a b ab a b =++=+=， 当12a b ==时取等号，即221113a b a b +≥++，D 正确.故选：BCD.【点睛】本题考查了基本不等式的应用，重点考查了运算能力，属中档题.12．已知连续函数f (x )对任意实数x 恒有f （x ＋y ）＝f (x )＋f （y ），当x ＞0时，f (x )＜0，f （1）＝－2，则以下说法中正确的是（ ） A ．f （0）＝0B ．f (x )是R 上的奇函数C ．f (x )在[－3，3]上的最大值是6D ．不等式()232()(3)4f x f x f x -<+的解集为213x x ⎧⎫<<⎨⎬⎩⎭∣ 【答案】ABC【分析】根据函数()f x 对任意实数x 恒有()()()f x y f x f y +=+，令0x y ==，可得(0)0f =，判断奇偶性和单调性，即可判断选项；【详解】解：对于A ，函数()f x 对任意实数x 恒有()()()f x y f x f y +=+， 令0x y ==，可得(0)0f =，A 正确；对于B ，令x y =-，可得(0)()()0f f x f x =+-=，所以()()f x f x =--， 所以()f x 是奇函数；B 正确；对于C ，令x y <，则()()()()()f y f x f y f x f y x -=+-=-， 因为当x ＞0时，f (x )＜0，所以()0f y x -<，即()()0f y f x -<， 所以()f x 在()()0,,,0+∞-∞均递减， 因为()0f x <，所以()f x 在R 上递减；12f ，可得(1)2f -=；令1y =，可得()()12f x f x +=-()24f =-， ()36f =-；()3(3)6f f =--=，()f x ∴在[3-，3]上的最大值是6，C 正确；对于D ，由不等式2(3)2()(3)4f x f x f x -<+的可得2(3)()()(3)4f x f x f x f x <+++， 即2(3)(23)4f x f x x <++，4(2)f =-，2(3)(23)(2)f x f x x f ∴<++-，则2(3)(52)f x f x <-，2352x x ∴>-，解得：23x <或1x >； D 不对；故选：ABC ．【点睛】本题主要考查函数求值和性质问题，根据抽象函数条件的应用，赋值法是解决本题的关键． 三、填空题13．函数y _________. 【答案】[]2,5【分析】先求出函数的定义域，再结合复合函数的单调性可求出答案. 【详解】由题意，2450x x -++≥，解得15x -≤≤，故函数y []1,5-.函数y =二次函数245u x x =-++的对称轴为2x =，在[]1,5-上的增区间为[)1,2-，减区间为[]2,5，故函数y []2,5. 故答案为：[]2,5.【点睛】本题考查复合函数的单调性，考查二次函数单调性的应用，考查学生的推理能力，属于基础题.14．奇函数f (x )在(0,)+∞内单调递增且f （1）＝0，则不等式()01f x x >-的解集为________． 【答案】{|1x x >或01x <<或1x <-}．【分析】根据题意，由函数()f x 的奇偶性与单调性分析可得当01x <<时，()0f x <，当1x >时，()0f x >，当10x -<<时，()0f x >，当1x <-时，()0f x <，而不等式()01f x x >-等价于1()0x f x >⎧⎨>⎩或1()0x f x <⎧⎨<⎩；分析可得答案．【详解】解：根据题意，()f x 在(0,)+∞内单调递增，且f （1）0=， 则当01x <<时，()0f x <，当1x >时，()0f x >，又由()f x 为奇函数，则当10x -<<时，()0f x >，当1x <-时，()0f x <， 不等式()01f x x >-，等价于1()0x f x >⎧⎨>⎩或1()0x f x <⎧⎨<⎩；解可得：1x >或01x <<或1x <-； 即不等式()01f x x >-的解集为{|1x x >或01x <<或1x <-}． 故答案为：{|1x x >或01x <<或1x <-}． 15．已知函数()f x 的定义域为()0,∞+，则函数1f x y +=__________． 【答案】(-1，1)【分析】先求()1f x +的定义域为()1,-+∞，再求不等式组21340x x x >-⎧⎨--+>⎩的解集可以得到函数的定义域．【详解】由题意210340x x x +>⎧⎨--+>⎩，解得11x -<<，即定义域为()1,1-．【点睛】已知函数()f x 的定义域D ，()g x 的定义域为E ，那么抽象函数()f g x ⎡⎤⎣⎦的定义域为不等式组()x Eg x D ∈⎧⎨∈⎩的解集．16．定义：如果函数()y f x =在区间[],a b 上存在00()x a x b <<，满足0()()()f b f a f x b a-=-，则称0x 是函数()y f x =在区间[],a b 上的一个均值点．已知函数2()1f x x mx =-++在区间[]1,1-上存在均值点，则实数m 的取值范围是________. 【答案】(0,2).【详解】试题分析：由题意设函数2()1f x x mx =-++在区间[1,1]-上的均值点为，则0(1)(1)()1(1)f f f x m --==--，易知函数2()1f x x mx =-++的对称轴为2m x =，①当12m≥即2m ≥时，有0(1)()(1)f m f x m f m -=-<=<=，显然不成立，不合题意；②当12m≤-即2m ≤-时，有0(1)()(1)f m f x m f m =<=<-=-，显然不成立，不合题意；③当112m -<<即22m -<<时，（1）当20m -<<有0(1)()()2m f f x f <≤，即214m m m <≤+，显然不成立；（2）当0m =时， 0()0f x m ==，此时01x =±，与011x -<<矛盾，即0m ≠；（3）当02m <<时，有0(1)()()2mf f x f -<≤，即214m m m -<≤+，解得02m <<，综上所述得实数m 的取值范围为(0,2).【解析】二次函数的性质. 四、解答题17．已知集合{}22|430,|03x A x x x B x x -⎧⎫=-+≤=>⎨⎬+⎩⎭（1）分别求A B ,R R A B ⋃（）；（2）若集合{|1},C x x a A C C =<<⋂=,求实数a 的取值范围． 【答案】（1）(2,3]A B ⋂=,(,2](3,)R R A B ⋃=-∞⋃+∞（2）3a ≤【分析】（1）化简集合,,A B 根据交集定义,补集定义和并集定义,即可求得答案; （2）由A C C =,所以C A ⊆,讨论C =∅和C ≠∅两种情况,即可得出实数a 的取值范围．【详解】（1）集合{}2|430[1,3]A x x x =-+≤=∴(,1)(3,)RA =-∞⋃+∞,[3,2]RB =-∴(2,3]A B ⋂=,(,2](3,)RR A B ⋃=-∞⋃+∞,（2）A C C =∴ 当C 为空集时,1a ≤∴ 当C 为非空集合时,可得 13a ≤＜综上所述:a 的取值范围是3a ≤．【点睛】本题考查了不等式的解法,交集和补集的运算,解题关键是掌握集合的基本概念和不等式的解法,考查了计算能力,属于基础题.18．已知函数()f x 是定义在R 上的偶函数，已知当0x ≤时，()243f x x x =++.（1）求函数()f x 的解析式；（2）画出函数()f x 的图象，并写出函数()f x 的单调递增区间； （3）求()f x 在区间[]1,2-上的值域.【答案】（1）()2243,043,0x x x f x x x x ⎧-+>=⎨++≤⎩； （2）见解析； （3）[]1,3-.【分析】（1）设x ＞0，则﹣x ＜0，利用当x≤0时，f （x ）=x 2+4x+3，结合函数为偶函数，即可求得函数解析式；（2）根据图象，可得函数的单调递增区间；（3）确定函数在区间[﹣1，2]上的单调性，从而可得函数在区间[﹣1，2]上的值域． 【详解】（1）∵函数()f x 是定义在R 上的偶函数∴对任意的x ∈R 都有()()f x f x -=成立∴当0x >时，0x -<即()()()()224343f x f x x x x x =-=-+-+=-+∴ ()2243,043,0x x x f x x x x ⎧-+>=⎨++≤⎩（2）图象如右图所示函数()f x 的单调递增区间为[]2,0-和[)2,+∞. （写成开区间也可以）（3）由图象，得函数的值域为[]1,3-.【点睛】本题考查函数的解析式，考查函数的单调性与值域，考查数形结合的数学思想，属于中档题．19．若二次函数()f x 满足11,()22f x f x x R ⎛⎫⎛⎫+=-∈ ⎪ ⎪⎝⎭⎝⎭,且(0)1,(1)3f f =-=．（1）求()f x 的解析式;（2）若函数()(),()g x f x ax a R =-∈在3,2x ⎛⎤∈-∞ ⎥⎝⎦上递减,3,2⎡⎫+∞⎪⎢⎣⎭上递增,求a 的值及当[1,1]x ∈-时函数()g x 的值域.【答案】（1）2()1f x x x =-+（2）2a =,值域为[1,5]-． 【分析】（1）设二次函数的解析式为2()(),0f x ax bx c a =++≠,由11,()22f x f x x R ⎛⎫⎛⎫+=-∈ ⎪ ⎪⎝⎭⎝⎭可得()f x 对称轴为12x =,结合条件,即可求得答案;（2）根据增减性可知32x =为函数()g x 的对称轴,即可得到a 的值,而根据()g x 在[1,1]x ∈-上递减可得出()g x 在[1,1]x ∈-上的值域．【详解】（1）设二次函数的解析式为2()(),0f x ax bx c a =++≠二次函数()f x 满足11,()22f x f x x R ⎛⎫⎛⎫+=-∈ ⎪ ⎪⎝⎭⎝⎭∴二次函数()f x 的对称轴为:12x =． ∴122b a -=,可得:=-b a ——① 又(0)1f =,∴(0)1f c ==,可得:1c =．(1)3f -=．即:13a b -+=,可得:2a b -=——②由①②解得: 1,1a b ==-∴()f x 的解析式为2()1f x x x =-+．（2） 函数()(),()g x f x ax a R =-∈()g x 在3,2x ⎛⎤∈-∞ ⎥⎝⎦上递减,3,2⎡⎫+∞⎪⎢⎣⎭上递增． ∴()g x 的对称轴为32x =, 即:1322a +=．解得:2a =． ∴2()31g x x x =-+．()g x 在3,2x ⎛⎤∈-∞ ⎥⎝⎦上递减, ∴()g x 在[1,1]x ∈-上递减,则有:在[1,1]x ∈-上,min ()(1)1g x g ==-．函数()g x 在[1,1]x ∈-上的值域为[1,5]-【点睛】本题考查了待定系数法的运用以及对称轴的形式,根据增减性判断函数的对称轴及在区间上值域问题,解题关键是掌握二次函数的基础知识,考查了分析能力和计算能力,本题属中档题．20．已知函数24()x ax f x x++=为奇函数. （1）若函数()f x 在区间,2m m ⎡⎤⎢⎥⎣⎦（0m >）上为单调函数，求m 的取值范围； （2）若函数()f x 在区间[]1,k 上的最小值为3k ，求k 的值.【答案】（1）4m ≥或02m <≤；（2【分析】（1）函数()f x 为奇函数，可知对定义域内所有x 都满足()()f x f x -=-，结合解析式，可得0ax =恒成立，从而可求出a 的值，进而可求出()f x 的解析式，然后求出函数()f x 的单调区间，结合()f x 在区间,2m m ⎡⎤⎢⎥⎣⎦（0m >）上为单调函数，可求得m 的取值范围；（2）结合函数()f x 的单调性，分12k <≤和2k >两种情况，分别求出()f x 的最小值，令最小值等于3k ，可求出k 的值.【详解】（1）由题意，函数()f x 的定义域为()(),00,-∞+∞，因为函数()f x 为奇函数，所以对定义域内所有x 都满足()()f x f x -=-，即()()2244x a x x ax x x-+-+++=--， 整理可得，对()(),00,x ∈-∞+∞，0ax =恒成立，则0a =， 故244()x f x x x x +==+. 所以()f x 在()0,2上单调递减，在[)2,+∞上单调递增，又函数()f x 在区间,2m m ⎡⎤⎢⎥⎣⎦（0m >）上为单调函数，则2m ≤或22m ≥，解得4m ≥或02m <≤.（2）()f x 在()0,2上单调递减，在[)2,+∞上单调递增，若12k <≤，则()()min 43f x f k k k k ==+=，解得k =12k <≤，只有k =合题意；若2k >，则()()min 42232f x f k ==+=，解得43k =，不满足2k >，舍去.故k 【点睛】本题考查函数的奇偶性，考查函数单调性的应用，考查了函数的最值，利用对勾函数的单调性是解决本题的关键，考查学生的计算求解能力，属于基础题. 21．已知二次函数2()(0)f x ax x a =+≠.（1）当0a <时，若函数y a 的值；（2）当0a >时，求函数()()2||g x f x x x a =---的最小值()h a .【答案】（1）-4；（2）()0,1,a a h a a a a ⎧-<<⎪⎪=⎨⎪-≥⎪⎩ 【分析】（1）当0a <时，函数y 而可求出a 的值； （2）当0a >时，求出()g x 的表达式，分类讨论求出()g x 的最小值()h a 即可.【详解】（1）由题意，()0f x ≥，即()200ax x a +≥<，解得10x a≤≤-，即函数y 定义域为10,a ⎡⎤-⎢⎥⎣⎦， 又当0a <时，函数()2f x ax x =+的对称轴为12x a =-，21111222(4)f a a aa a ⎛⎫= ⎪⎝-=-⎭--，故函数y⎡⎢⎣，函数y1a -=4a =-. （2）由题意,0a >，2()||g x ax x x a =---，即()()22()2,,x a x ax g a a x a x ax -+≥-<⎧⎪=⎨⎪⎩， ①当01a <≤，则10a a≥>， x a ≥时，2min 1111(2)()()()g x g a a a a a a a-+=-==， x a <时，min ()(0)g x g a ==-， 若1a a a -≥-1a ≤≤， 若1a a a -<-，解得0a <<即0a <<min 1()g x a a =-1a ≤≤时，min ()g x a =-. ②当1a >时，1a a <， x a ≥时，33min ())2(g x g a a a a a a ==-+=-，x a <时，min ()(0)g x g a ==-，因为3a a a ->-，所以1a >时，min ()g x a =-.综上，函数()g x 的最小值()0,1,a a h a a a a ⎧-<<⎪⎪=⎨⎪-≥⎪⎩. 【点睛】本题考查函数的定义域与值域，考查二次函数的性质，考查函数的最小值，考查分类讨论的数学思想，考查学生的逻辑推理能力，属于中档题.22．定义在R 上的函数()f x 满足:①对一切x ∈R 恒有()0f x ≠；②对一切,x y R ∈恒有()()()f x y f x f y +=⋅；③当0x >时，()1f x >，且(1)2f =；④若对一切[,1]∈+x a a (其中0a <)，不等式()224(2||2)f x a f x +≥-恒成立.(1)求(2),(3)f f 的值；(2)证明:函数()f x 是R 上的递增函数；(3)求实数a 的取值范围.【答案】（1）4，8（2）证明见解析（3）(,-∞ 【分析】1）用赋值法令1,1x y ==求解.（2）利用单调性的定义证明，任取12x x <，由 ()()()f x y f x f y +=⋅，则有()()()2211f x f x x f x =-，再由条件当0x >时，()1f x > 得到结论.（3）先利用()()()f x y f x f y +=⋅将4(2||2)-f x 转化为(2||)f x ，再将()22(2||)+≥f x a f x 恒成立，利用函数()f x 是R 上的递增函数，转化为222||≥+x a x 恒成立求解.【详解】（1）令1,1x y == 所以(2)(1)(1)4f f f =⋅=所以(3)(2)(1)8f f f =⋅=（2）因为()()()f x y f x f y +=⋅任取12x x <因为当0x >时，()1f x >所以()211f x x ->所以()()12f x f x <，所以函数()f x 是R 上的递增函数，（3）因为()4(2||2)2(2||2)[2(2||2)](2||)-=-=+-=f x f f x f x f x又因为()224(2||2)f x a f x +≥-恒成立且函数()f x 是R 上的递增函数，所以222||≥+x a x ，[,1]∈+x a a (其中0a <)恒成立所以222||+≥-a x x 若对一切[,1]∈+x a a (其中0a <)，恒成立.当11a ≤-+ ，即2a ≤-时()()2max 143=+=---g x g a a a所以2243≥---a a a ，解得2a ≤-当21a -<≤-时，()max 1g x =解得21a -<≤-当10a -<≤，()()(){}max max ,1=+g x g a g a所以222≥--a a a 且221≥-+a a解得1a -<≤-综上：实数a 的取值范围(,-∞ 【点睛】本题主要考查了抽象函数的求值，单调性及其应用，还考查了分类讨论的思想和运算求解的能力，属于难题.。
高一上学期期末英语试题分类汇编：七选五专题(部分答案)
七选五专题黑龙江省鹤岗市第一中学2020-2021学年高一英语上学期期末考试试题第二节（共5小题；每小题2.5分，满分12.5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。
选项两项为多余选项。
Everybody hates the idea of cutting back spending because it usually means living without things you like. But not always.16. They could reduce your costs by thousands of dollars a year.17 .An increasing number of grocery chains are selling their own lines of food. Actually, these brands cost less than the famous brands, but taste the same. Switch and you could save 25 percent on your grocery bills.Make a listWhether you're buying groceries or gifts, spur-of-the-moment decisions are your enemy.18. If you want to buy something on impulse, force yourself to go home and think about it.Carry snacks19. The same holds true for anything you eat out. So if you know you're going to be out for several hours and likely to get hungry, throw an apple in your car or carry a six-pack of soda or water in your bag.Use it upBefore you run to the store, make sure you check your fridge. There's a good chance that you've got lots of unused or partially used items that will go to waste while you waste your cash buying more.20A. Make a savings planB. Switch to store brandsC. There are many painless ways to saveD. Choose reliable brands of known companiesE. Write a to-do list before you go shopping and stick to itF. Whether it's food or beauty care, use it up before you replace itG. Buy a soda at a restaurant and you're likely to pay twice as much七选五16-20 CBEGF黑龙江省哈尔滨市呼兰区第一中学校等三校2020-2021学年高一上学期期末联考英语试题第二节（共5小题; 每小题2分，满分10 分）根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。
2020-2021学年第一学期九年级英语期末试题（原创）（带听力与答案）
2020-2021学年第一学期九年级英语期末试题（原创）（带听力与答案）2020-2021学年九年级上学期期末考试英语试题卷（满分120分，考试时间120分钟）听力部分（共20分）. 情景反应（共5小题，每小题1分，满分5分）这一节共有5个小题，每小题你将听到一段对话。
请你根据听到的内容，从A、B、C三幅图中选出与对话内容相符的图片，并将其字母标号填入题前的括号内。
П. 对话理解（共5小题，每小题1分，满分5分）这一节共有5个小题，每小题你将听到一段对话。
请你根据听到的内容和提出的问题，从A、B、C三个选项中选出一个最佳选项，将其字母标号填入题前的括号内。
（）6. A. Honest. B. Helpful. C. Active.（）7. A. By shaking hands. B. By bowing. C. By kissing her.（）8. A. At 8:30. B. At 8:45. C. At 9:00.（）9.A. 4000 yuan. B. 3000 yuan. C. 2000 yuan.（）10.A. She can come to the party.B.She is too busy to come to the party.C.She will come to the party after the meeting. Ⅲ. 语篇理解（共5小题，每小题1分，满分5分）这一节你将听到一篇短文，请你根据听到的短文内容和提出的五个问题，从每小题所给的A、B、C三个选项中选出一个最佳选项，将其字母标号填入题前的括号内。
( )11. What happened to the writer when she entered the junior high school?A.She felt lonely.B. She did badly in her studies.C. She hurt her classmates. ( )12. How did the writer deal with her problem?A.She talked to her classmates.B.She shared it with her parents.C.She hid it in her heart alone.( )13.What did the boy give the writer?A.Some kind words.B. A bright smile.C. A hot kiss.( )14. Where does the writer think the unhappiness come from?A.From her friends.B. From her school.C. From herself.( )15. What does the writer mainly want to tell us?A.We should love the world.B.We should be open to others.C.We should face difficulties bravely.IV.听力填空（共5小题，每小题1分，满分5分）V. 单项选择（每小题1分，共10分）( )21.China is no longer only good at making everyday things, but also high-technology .A.skills B, buildings C. products( )22. Everyone Hangzhou for its beautiful scenery, so millions of people go and visit it every year.A.hatesB. praisesC. encourages.( )23. In my time, I often hang out with my friends at the mall.A.spareB. busy.C. exact( )24. The New Silk Road will offer a good for nations to communicate.A.chance B habit C. question( )25. The new movie Forever Young be worth watching. The tickets sell out every day.A.can’ tB. mightC. must( )26. - Dad, I got hired as a bus driver.- Congratulations! Make yourself so that the company won’ t want tolose you.A.fashionableB. valuableC. changeable( )27. Mind-map is a kind of reading strategy(策略). It means you draw a picture about the article you have read and it can express the ideas.A slowlyB loudly C. clearly( )28.Safety has always been a hot topic to students. They are told to dangerous places and people when hanging out aloneA come up with B. keep away from C. take care of( ) 29. At the party, mike was so excited about talking with his friends that he nearly forgot his sister. That really made her feel .A.left outB. gone outC. taken out( )30. -Do you know ?-Yes, of course. It will be hosted by Beijing and Zhangjiakou.A.when the 2022 Winter Olympics will be held.B.how the 2022 Winter Olympics will be held.C.where the 2022 Winter Olympics will be held.VI. 补全对话（每小题1分，共5分）根据对话内容，从方框内所给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。
04 七选五专练(解析版)-2020-2021学年上学期高一英语期末专项训练
高一上学期期末专项训练4 七选五01Things I Wish I'd Known in High SchoolSometimes high school seems like a necessary evil. Now at the end of my college journey, I know that there are still more things I could have done to make my high school experience more beneficial.1Take a class that scares you during high school. The experience will definitely prepare you for future academic challenges.Don't worry about your grades too much. Getting a B is not the end of the world. 2I have started college with all A's since seventh grade, and it was hard to deal with not being able to repeat that. I stayed away from taking some harder courses I might have done well in because I was afraid of doing poorly. Now, I can fully accept that if I try my best in at least one harder class and get a B+, that is still something to be proud of.Find your own de-stressing(解压) routine. Another essential skill to begin building in high school is how to manage work and stress. Maybe you deal with stress by going for a run, or watching a silly movie. Talk with a friend for a while or play with your dog.3Spend your summers wisely. Don't take on a full-time job the first summer you decide to work.4Do find something to do that will make the ten weeks worthwhile. Look for programs that take you to interesting places, or a job that will give you insights into something you might be interested in.Finally, remember to have fun. Your life does not depend on high school. 5You will have plenty of time to work hard in college and beyond. Be prepared, but don't stress out too much about it. If you can make your high school experience fun, you will have no problem doing the same for your life in college and beyond.A.In fact, it's a kind of good thing.B.Take full advantage of your brain.C.You do have to be active in making friends.D.Do your best, but leave time for fun with friends.E.They will be improved if you make great efforts.F.Find out what relaxes you, and you will feel less stressed.G.Forty hours a week will be a huge shock and you'll have plenty of time for that in the future.1. 2. 3. 4. 5.答案[语篇解读]作者讲述了上高中应该做的几件事。
2020-2021学年高一第一学期期末考试(一)英语试卷含答案
汪清四中2020-2021学年度高一年级第一学期期末考试英语试卷（考试时间：120分钟试题总分：120分）第一部分听力（共两节，满分20分）第一节（共5小题；每小题1分，满分5分）1.What are the speakers doing?A.Seeing a doctor.B. Enjoying a concert.C. Buying some tickets.2.What will the the man do next Thursday?A.Start his new job.B. Have an interview.C. Meet Professor Green.3.What is the woman’s first lesson this morning?A.ScienceB. GeographyC. Math.4.What day is it probably today?A.MondayB. Wednesday.C. Friday5.What kind of music does the woman like best?A．Country music. B. Rock music. C. Pop music第二节（共15小题：每小题1分，满分15分）听第六段材料，回答第6、7题。
6.How old is the woman now?A．Eight years old. B．Ten years old. C. Eighteen years old.7.Where does the woman plan to go next year ?A．To Canada. B. To America. C. To France.听第七段材料，回答第8、9题。
8.How does the man feel when he sees the sandwiches?A.DisappointedB. ExcitedC. Annoyed9.What will the man order ?A．Steak B. Seafood C. Fried chicken听第八段材料，回答第10至12题。
湖南省2020-2021学年上学期高一英语期末试卷精选汇编：应用文写作专题
应用文写作专题湖南省永州市2020-2021学年高一上学期期末考试英语试题第一节应用文写作（满分15分）46. 假如你是李华，收到你英国朋友Tom的电子邮件，邮件中提到他想锻炼，但是没有足够的时间，也没有钱去健身俱乐部，而且还难以坚持下去；请你针对他的情况给予回信。
内容要点如下：1. 表示理解；2. 提出建议；3. 表示祝愿。
注意:1. 词数80左右;2. 可以适当增加细节, 以使行文连贯。
【答案】Dear TomI quite understand your situation and there are some suggestions that you might find helpful.First, remember that you don’t have to exercise for 30 minutes or a whole hour non-stop. Instead, try to do small amounts of exercise, for example, taking the stairs up instead of the lift. Secon d, you don’t have to pay to exercise. Many can be done outside the gym, such as running and walking. Finally, you can invite your family and friends to work out with you. In this way, you are more likely to stick with.I’m sure you’ll soon be happy to exe rcise.【解析】【分析】本篇书面表达属于应用文，要求考生给英国朋友Tom写一封邮件，针对他对于锻炼方面的问题给予回信。
四川省2020-2021学年上学期高一期末英语解析版试卷精选汇编：语法填空专题(含解析)
语法填空专题四川省雅安市2020－2021学年上期期末检测高一英语试题第二节阅读填空（共10小题；每小题1.5分，满分15分）阅读下面材料，在空白处填入适当的内容（1个单词或括号内单词的正确形式）。
Close to 70 percent of the world’s population will live in cities by the year 2050. Experts warn that population ___41___(grow) will worsen housing crises in some areas.Large cities around the world already struggle with housing problems. In some neighborhoods, rising house prices have forced ___42___ poor from their homes. Many poor people now live in shelters or on the street.People ___43___(move) to large cities now not just for high-paying jobs. Many are also looking for the chance to live and work with other people, career opportunity and access to much___44___(good) resources. Some countries have built new capital cities ___45___(help) ease overcrowding. These efforts help, but do not solve the problem.The report says that by 2030 the world will have had 43 very large ___46___(city), each with more than10 million people.Tjada McKenna, ___47___ is chief operating officer for an aid group, says that the ability to own a home in many countries is often difficult, ___48___(especial) for women and minority groups.Every city is different in ___49___(deal) with development problems. Each one has its own economic forces at work and its own history. Experts say that answers ____50____ the housing crisis and other problems must be developed city by city.【答案】41. growth42. the 43. are moving44. better 45. to help46. cities 47. who48. especially49. dealing50. to【解析】这是一篇说明文。
广东省实验中学2020-2021学年高一英语上学期期末考试试题
20XX年复习资料教学复习资料班级：科目：广东省实验中学2020-2021学年高一英语上学期期末考试试题试卷共12页，满分150分。
考试用时120分钟。
注意事项：1．答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名、考号填写在答题卷上。
2．选择题每小题选出答案后，用2B铅笔把答题卷上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其它答案；不能答在试卷上。
3．非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卷各题目指定区域内的相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。
不按以上要求作答的答案无效。
4．考生必须保持答题卡的整洁，考试结束后，将答题卷收回。
第一部分听力（共三节，满分15分）第一节听下面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.When is the woman too busy to meet the man?A. On Monday.B. On Tuesday.C. On Wednesday.2.What does the woman want to do well in?A. Plan making.B. Public speaking.C. Face-to-face conversations.3.How does the man feel about the grade?A. Amazed.B. Disappointed.C. Confused.4.What can the website help people find?A. Part-time jobs.B. Cute pet photos.C. Animals to care for.5.Where might the speakers be?A. At a concert hall.B. At a ticket office.C. At a bank.第二节听下面2段对话或独白。
2020-2021学年第一学期高一年级期末考试英语试题含参考答案
2020~2021学年第一学期高一年级期末考试英语试卷（考试时间：上午10:30-12:00)说明：本试卷为闭卷笔答，答题时间90分钟，满分100分。
请将第I卷试題答案填在第1卷卷首的相应位置。
第1卷（共65分）第一部分听力（共两节，满分15分）第一节（共5小题；每小题1分，满分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。
答案写在答题卡上。
例：How much is the shirn?A.£19.15.B.£9.18.C.£9.15.答案是C.1.How long did the man spend reading the short story?A.About 30 minutes.B.About one hour.C.About two hours.2.What will the man probably do?A. Buy an apartment.B.Book a popular hotel.C.Live with the woman's parents.3. Which of the following does the woman mean?A. As busy as a bee.B.Kill two birds with one stone.C. When the cat's away, the mice will play.4.What's the possible relationship between the two speakers?A.Parents.B.Strangers.C.Friends.5.Why isn't the woman interested in spoken English?A.Because she is not good at it.B.Because she thinks it is useless.C.Because she is interested in written English.第二节（共10小题；每小题1分，满分10分）听下面3段对话或独白。
2020-2021学年重庆八中高一上学期第一次月考英语试题(解析版)
重庆八中高2023级高一（上）第一次月考英语试题第一部分听力第一节听下面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 does the man think of Linda’s husband?A. Clever.B. Unfriendly.C. Quiet.2. What will the weather be like on Friday?A. Rainy.B. Windy.C. Sunny.3. What are the speakers talking about?A. A hotel.B. An airport.C. A hospital.4. What does the man suggest doing?A. Going fishing.B. Staying at home.C. Buying some books.5. What a re in the man’s bag?A. Some CDs.B. Some bottles.C. Some books.第二节听下面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、7题。
6. What does the woman usually do on Saturdays?A. She goes swimming.B. She plays basketball.C. She goes shopping.7. When does the woman usually go to the cinema with friends?A. On Friday nights.B. On Saturday nights.C. On Sunday nights.听第7段材料，回答第8、9题。
四川省2020-2021学年上学期高一期末英语解析版试卷精选汇编：短文改错专题
短文改错专题四川省雅安市2020－2021学年上期期末检测高一英语试题第一节短文改错（共10小题，每小题1分，满分10分）51. 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。
Studying in the UK have been a good experience for me. When I first arrived, I find life very hard as I didn’t know anybody here, but I soon got to know other Chinese student. Later I became interesting in communicating with people from various cultures, but I made more friends. The courses here were excellent and we were encouraged to think for yourselves, which was quite different from that I had experienced before. During my study, I chose to live in with my classmates in the dormitory. I think it’s better than living in British family because I can meet people from different countries easy.【答案】1.have→has 2.find→found 3.student→students4.interesting→interested5.but→and6.yourselves→ourselves7.that→what8.去掉with前的in 9.British前添加a 10.easy→easily四川省成都市2020-2021学年高一上学期期末考试英语试题五、短文改错51．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。
重庆市2020-2021学年高一上学期期末联合检测试卷英语试题 含答案
重庆市2020-2021学年高一上学期期末联合检测英语试卷英语测试卷共8页，满分150分。
考试时间120分钟。
注意事项：1.答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。
2.作答时，务必将答案写在答题卡上。
写在本试卷及草稿纸上无效。
3.考试结束后，将本试卷和答题卡一并交回。
第一部分听力（共两节，满分30分）做题时，请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。
例：How much is the shirt?A. £19.15.B. £9.15.C. £9.18.答案是B。
1. What does the man ask for?A. The woman’s phone.B. The woman's book.C. The woman’s car.2. How does Tom feel these days?A. Excited.B. Worried.C. Angry.3. What is the woman's suggestion?A. Going to school.B. Seeing a doctor.C. Staying home.4. What will the speakers probably do this weekend?A. See a movie.B. Buy a computer.C. Eat out in town.5. When will the next train for Shanghai leave?A. At 8:30.B. At 10:30.C. At 11:30.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。
2020-2021学年重庆第四十二中学高一英语测试题含解析
2020-2021学年重庆第四十二中学高一英语测试题含解析一、选择题1. The problem ________ at the meeting yesterday.A. came toB. came acrossC. came upD. came up with参考答案：C2. A poet and a writer ________ coming to our school to give us a talk this Friday afternoon.A. areB. isC. willD. were参考答案：A略3. . Sitting alone by the window, all the memories __________ .A. clouded inB. clouded withC. crowded inD. crowded with参考答案：C略4. With so many noises from the busy traffic in the street, I couldn’t and do my research work.A. put downB. set downC. get downD. settle down参考答案：D5. Tom and Dick were both heroes who protected ______ city, but only ______ latter is remembered today.A. a; /B. the; aC. /; theD. the; the参考答案：D6. The president said, “ __________ is our hope that the two countries will work together in these scientific fields. ”A. ThisB. ThereC. ThatD. It参考答案：D7. They didn’t know how the change had .A．been takenplace B．happenC．come about D．broke out参考答案：C8. It’s their duty for the soldiers our country our enemies.A．to prevent; from B．to keep; fromC．to protect; from D．to defend; with参考答案：C9. If you leave the club, you will not be back in.A. receivedB. admittedC. turnedD. moved参考答案：B10. Mr. Smith insisted that the party _________ properly.A. organizesB. organizeC. be organizedD. would beorganized参考答案：C11. The group of students went to the suburb, did some research work, and ________ the water in the river to see if it had been polluted.A. provedB. boiledC. testedD. exchanged参考答案：C解析：test表示“测试；测验”，以确认是否合格。
2020-2021学年重庆开县实验中学高一英语联考试卷含部分解析
2020-2021学年重庆开县实验中学高一英语联考试卷含解析一、选择题1. ---May I put my luggage on the seat beside you, sir?--- .A. Sure, with pleasureB. Oh, please yourselfC. Well, never mindD. No, help yourself参考答案：B略2. He has some doubt ________ he will succeed in his research work.A. whetherB. ifC. whichD. that参考答案：A3. We each ____ strong points and each of us on the other hand ____ weak points.A. have, haveB. has, haveC. has, hasD. have, has参考答案：D4. —Yang yan, are you coming with us?—I’d love to, but something unexpected ______.A. was coming upB. had come upC. would come upD. has come up参考答案：B5. --- Do you need any help, Lucy?-- Yes. The job is ____ I could do myself.A. less thatB. more thanC. rather thanD. other than 参考答案：B6. I don’t think the film you told me about this morning is worth _____.A. seeingB. being seenC. to seeD. to be seen参考答案：A7. —What shall we do tonight then?——whatever you want.A．It’s up to you B．No problemC．Help yourself D．It’s a deal参考答案：A8. Everything depends on _______ they will support you about it.A. ifB. whichC. whetherD. that参考答案：C9. --If we don’t do our best to reduce pollution, man’s history won’t last long.--_________.A. It’s OKB. You are ly rightC. That’s all r ightD. Mind your own business参考答案：B10. ---I wonder if I could use your bike?---________.A. Sure. Go aheadB. I’m sorry. Help yourselfC. Yes, you couldD. No, you couldn't 参考答案：A11. The boy insisted that he_____ nothing wrong and that he_____ at onceA. should do; should be set freeB. should do; must set freeC. had done; be set freeD. had done; must be set free参考答案：C句意：这个男孩坚持认为他没有做错事，应该被立刻释放。
2020-2021学年重庆蜀都中学高一英语联考试题含部分解析
2020-2021学年重庆蜀都中学高一英语联考试题含解析一、选择题1. The father as well as his three children ____ skating on the frozen river every Sunday afternoon in winter.A. is goingB. goC. goesD. are going参考答案：A2. Only then_______ that I was lost in the forest.A. I realizedB. I had realizedC. did I realizedD. had I realized参考答案：C略3. —Who called just now, Sam?—It’s Terry. She asked _____.A. that Alice was inB. if was Alice inC. if Alice was inD. whether was Alice in参考答案：C4. I just wonder ______ that you don’t want to cooperate with me.A. why it doesB. what it doesC. how it isD. why it is参考答案：D5. Our teacher advised you to _______ the article that is too long so as to make it fit the space.A. cut awayB. cut throughC. cut upD. cut down参考答案：D 6. ______ advertisement uses ______ words and pictures the advertisers think of to convince people to buy ______ product or________ service, or to believe in an idea.A. An; the; a; /B. An; /; the; aC. The; /; a; /D. The; the; /; the参考答案：A略7. We were ly amazed_____ his attitude _____ the thing.A. at; ofB. with; ofC. with; onD. at; to参考答案：D8. The little girl was so ________ when she saw the dog that she dared not move at all.A．frightening B．frightened C．shocking D．shocked参考答案：B[句意：小姑娘见到狗时吓坏了，动也不敢动。
2020-2021学年重庆第七中学高一英语联考试卷含部分解析
2020-2021学年重庆第七中学高一英语联考试卷含解析一、选择题1. When deeply lost in thought, _______ he often was, he would forget all about eating or sleeping. ks5uA. thatB. whereC. whichD. when参考答案：C2. ________ you've got a good friend, you might as well value him.A. AfterB. AlthoughC. Now thatD. As soon as参考答案：Cnow that引导原因状语从句，意为“既然”，其他选项不符合句意。
3. The poor man stood there , with his hands _____, his eyes upon the dark cave.A. crossed, fixingB. crossing, fixingC. crossed, fixedD. crossing, fixed参考答案：A4. --Look! The telephone is broken. Someone damaged it ________ purpose.---That may be right. But perhaps it was broken _________ accident.A. on; byB. for; byC. on; intoD. by; on参考答案：A5. Joanne was delayed by a customer when she _________the office.A. leftB. had leftC. was leavingD. leaves 参考答案：C6. Shopping malls will have more customers if they have seats women can park their men.A. whichB. thatC. whereD. when参考答案：C考查非限制性定语从句。
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2020-2021学年重庆开县实验中学高一英语上学期期末试题含解析一、选择题1. — Could I use your car this afternoon?—________! You may go there by taxi.A. No problemB. No wayC. Good luckD. All right参考答案：B2. Mary _____ writing. She’s _____ three books in the last two years and they _____ to be quite a hit.A. makes a bet on; awarded; seemedB. gets away with; announced; provedC. has fun with; finished; appearedD. has a gift for; published; turned out参考答案：D3. I _____ the book the whole day, yet I haven’t finished it.A. have been readingB. have readC. have ever hadD. had ever had参考答案：A4. —It was careless of you to put your new bike downstairs all night.—My God!______.A. So I didB. So it wasC. So did ID. So have I参考答案：A略5. ---How did you find your visit to Moscow, Mike?---__________.A. Oh, wonderful indeedB. I went there aloneC. First by plane and then by trainD. A guide showed me the way参考答案：A略6. ‘You will soon learn English,’ he said. I wonder. I _____.A. am not sureB. am sureC. wanderD. know参考答案：A7. She could not come here_________ her father’s illness.A. becauseB. asC. because ofD. if参考答案：C8. Only those who have reached the standard for their event will _______ as competitors.A. admitB. admittedC. be admittedD. be admitting参考答案：C9. _____, the great mother, in order to save her sick child, kept waiting for four hours in the heavy snow.A. It dependsB. Take it easyC. Believe it or notD. It is OK参考答案：C10. She wants to let her appear live on the air,______ that Huike will see her.A. hopingB. to hopeC. hopedD. hopes参考答案：A略11. --Would you mind if I used your mobile phone?-- _______, please.A. YesB. Go aheadC. Of courseD. All right参考答案：B12. When his mother came in, the boy pretended ____.A. readingB. being readC. to readD. to be reading参考答案：D13. They are all interested in the newly-built apartments along the river, really want to buy them yet.A. none of themB. neither of themC. none of whomD. neither of whom参考答案：C14. --Can I use your dictionary?--______.A. Go ahead, help yourself, pleaseB. Yes, you couldC. With pleasureD. It doesn’t matter参考答案：A15. My father made me a promise ___ he would buy me a present if I got a good markA. whenB. whichC. thatD. if参考答案：C略二、单词拼写41. The little boy was so ____________ (好奇) that he reached for the package.42. We got into a(an) ____________ (争论) about whether to go by sea or by air.43. While delivering his speech at that meeting, the speaker often ____________ (参考) to his notes.44. What will happen if you do not eat a ____________ (平衡的) diet.45. I have met Mike on many ____________ (场合), so I am familiar with him.46. They ____________ (懊悔) that they had left home without having brought their dog.47. Scientists are taking some ____________ (措施) to find the cause of the disease.48. ____________ (不幸), his father died, leaving his family in a worse situation.49. Peter came in and ____________ (耳语) something in Daddy’s ear.50. He had ____________ (克服) many difficulties before he finally succeeded.参考答案：41. curious42. argument43. referred44. balanced45. occasions46. regretted47. measures48. Unfortunately/Unluckily49. whispered50. overcome【41题详解】考查形容词。
句意：小男孩非常好奇，伸手去拿包裹。
分析句子结构可知，空处填形容词作表语，再根据句意可知，curious意为“好奇的”，故填curious。
【42题详解】考查名词。
句意：我们就该坐船去还是乘飞机去争论起来。
分析句子结构可知，空处填名词作into宾语，再根据句意可知，argument意为“争论”，故填argument。
【43题详解】考查动词。
句意：在那次会议上发言时，演讲者经常查阅他的笔记。
分析句子结构和语境可知，空处填动词的过去式，再根据句意可知，refer意为“查阅、参考”，故填referred。
44题详解】考查形容词。
句意：如果你不吃均衡的饮食会发生什么。
分析句子结构可知，空处填形容词作diet的定语，再根据句意可知，balanced意为“均衡的”，故填balanced。
【45题详解】考查名词。
句意：我已经见过迈克很多次了，所以我对他很熟悉。
many修饰可数名词复数，再根据句意可知，occasion意为“时刻、时候”，是可数名词，因有many修饰，故填occasions。
【46题详解】考查动词。
句意：他们后悔没带狗就离开了家。
分析句子结构和语境可知，空处填动词过去式，再根据句意可知，regret意为“后悔”，故填regretted。
【47题详解】考查名词。
句意：科学家们正在采取一些措施来找出这种疾病的原因。
分析句子结构可知，空处填名词，再根据句意可知，take measures是固定搭配，意为“采取措施”，故填measures。
【48题详解】考查副词。
句意：不幸的是，他的父亲去世了，使他的家庭陷入更糟糕的境地。
副词置于句首修饰句子，再根据句意可知，unfortunately/unluckily意为“不幸的是”，故填Unfortunately/Unluckily。
【49题详解】考查动词。
句意：彼得进来对爸爸耳语了几句。
根据came in 可知，空处填动词的过去式形式，再根据句意可知，whisper意为“耳语”，故填whispered。
【50题详解】考查动词。
句意：他克服了许多困难才最终成功。
分析句子结构可知，本句为过去完成时。
再根据句意可知，overcome意为“克服”，其过去分词是overcome，故填overcome。
17. 根据句中所提供的信息，在空格内填入适当词的正确形式。
（共10分）71. We ____________(祝贺) her on the birth of her daughter.72. Our manager has the ______(权力)to decide how many cars we need to buy next year.73. After years of travel, we decided to ____________(定居)in London.74. Reading is one of the best ways of enriching your ______________(词汇).75. It’s an __________(荣幸) for me to be invited to speak here.76. Your parents weren’t disappointed at your work. ___________（实际上）they felthappy that you had been making progress.77. Finally Linda ______________ (痊愈)from her illness, which made her family happy.78. A d______ person always tries his best to finish the task given to him, however hard it is.79. His a___________ toward me has greatly changed.80.Go s____________ down the street and then turn left at the second crossing.参考答案：71. congratulated 72.power 73.settle 74.vocabulary 75.honour76. actually 77.recovered 78. determined 79. attitude 80.straight略三、阅读理解18. Contestants from around the world met in Pomona, California, this month to test their skills at things like driving a car, walking down stairs, and opening doors. Sounds easy, right? But the competitors weren’t people—they were robots!The bots were participating in(参加) the final round of the US’s DARPA(Defense Advanced Research Projects Agency) Robotics Challenge. This event, which took place on June 5-6, tested robots on how well they could respond during a disaster and the winning team finally took home a $2 million grand prize.The DARPA challenge was created after the 2011 Fukushima nuclear disaster in Japan. An earthquake caused a tsunami, which damaged a nuclear power plant. Workers at the plant needed to shut off an important valve(阀门), but it was too dangerous for humans to reach it.The US scientists at DARPA wondered whether the disaster could have been avoided if a robot had been sent to do the job. So they set up the robotics competition.Turning a valve was just one task a robot might have to perform when entering a disaster zone. In addition to doing this, robots participating in the challenge had to navigate a course containing several other tasks: driving and exiting a vehicle, opening a door, walking over or clearing objects, cutting a hole in a wall, plus climbing a flight of stairs.Teams had to complete the challenge in one hour, and points were awarded based on how quickly the robots completed a task. They didn’t have to attempt all the tasks. To make things even more realistic, challenge organizers caused short computer-system blackouts(断电) that prevented robots and the human operators controlling them from communicating. That means teams had to program their robots to be partially autonomous(独立的). Robots also couldn’t be attached to anything that could keep them from falling down, which happened a lot.29. What do we know about this year’s DARPA challenge?A. It lasted five days.B. It was held in Japan.C. Its winner got a cash prize.D. Its winner will work in Fukushima.30.What does the underlined part “the job” in Paragraph 3 refer to?A. To open a door.B. To close a valve.C. To predict a tsunami.D. To rebuild a nuclear power plant.31.The robots that participated in the US’s DARPA challenge were required to _____.A. challenge all the tasksB. have a good sense of smellC. complete their tasks in an hourD. act in the dark in the whole process32.What is the text mainly about?A. A nuclear disaster.B. A research program.C. A robotics competition.D. A scientific organization.参考答案：29.C30.B31.C32.C32.C考察主旨大意。