非谓语动词易错题及解析
非谓语动词易错题及解析
非谓语动词易错题及解析 一、单项选择非谓语动词 1．(福建) _____________ basic first-aid techniques will help you respond quickly to emergencies. A．Known B．Having known C．Knowing D．Being known 【答案】C 【解析】 【详解】 考查动名词。句意：了解基本的急救知识可以帮助您快速应对紧急情况。分析句子成分，谓语是will help，所以前面的是主语，用动名词做主语，故选C项。 2．When he was a boy, he used to go there and watch _____. A．to repair bicycles B．bicycles to be repaired C．bicycles being repaired D．repairing bicycles 【答案】C 【解析】 3．Once be falls asleep, I have great difficulty _______ him up. A．wake B．waken C．to wake D．waking 【答案】D 【解析】 一旦他睡着了，我叫醒他就有很大的困难。have difficulty (in) doing sth. 做某事有困难，选D。 4．In Australia, many road signs are now both in English and Chinese, ______ it easier for Chinese tourists to travel. A．making B．made C．make D．makes 【答案】A 【解析】考查状语从句。在澳大利亚，许多路标都是用英文和中文同时标识，使中国游客去旅游更加容易。根据与前面一句用逗号隔开，没有连词，故判断此空用非谓语动词，根据与主语是主动关系，故用动词-ing形式，用来修饰和补充上一句话，故选A。 5．Pressed from his parents, and ____ that he has wasted too much time, the boy is determined to stop playing video games. A．realizing B．realized C．to realize D．being realized 【答案】A
高中英语语法易错题非谓语动词陷阱题
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高考英语专题非谓语动词知识点易错题汇编
高考英语专题非谓语动词知识点易错题汇编 一、选择题 1．—Did you have a good time at the party? —Thanks. I appreciated______to your home. A．to be invited B．to have invited C．being invited D．having invited 2．The man was so surprised at _______ that he did not try to escape or defend himself. A．discovered B．discovering C．to be discovered D．being discovered 3．The president promised to keep all the board members _____ of how the negotiations were going on． A．inform B．informing C．be informed D．informed 4．Some psychologists suggest that one could improve his performance when mentally imagining himself ________ (perform) well at some back. A．performing B．to perform C．performed D．having performed 5．________ with a roomful of dresses, a woman may easily spend hours going from one dress on another before selecting the dresses she wants to try on. A．Having faced B．Faced C．To face D．Facing 6．Employees might feel unsafe in the current jobs, thus ________ an eye on what is new in the job market is of great importance to them. A．keep B．keeping C．being kept D．to be kept 7．I missed the last bus and had no money for a taxi，so I could do nothing but ____ home last night. A．to walking B．walk C．walking D．walked 8．As far as I’m concerned, this book deserves ______ several times. A．being read B．to read C．reading D．read 9．_________ in the northwest of China, Xi'an is seen as the birthplace of the country's civilization. A．Locating B．Being located C．To locate D．Located 10．Though he had often made his little sister ________, today he was made ________ by his little sister. A．cry; to cry B．crying; crying C．cry; cry D．to cry; cry 11．—Where does your little daughter want to go during her holiday ? —She is always looking forward to _____ to the Wu Yi Mountain. A．take B．taking C．being taken D．be taken 12．The long-last ing war, filled with blood and deaths, ended in people’s sadness, _______no result. A．reached B．to reach C．would reach D．reaching
高三数学培优补差辅导专题讲座-集合、函数与导数单元易错题分析与练习p
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经典易错题会诊(非谓语动词) 含答案
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非谓语动词易错题集锦
非谓语动词易错题集锦 一、单项选择非谓语动词 1．——Can I smoke here? ——Sorry. We don’t allow _______here. A．people smoking B．people smoke C．to smoke D．smoking 【答案】D 【解析】 试题分析：句意：--我可以在这里吸烟吗？---对不起，我们不允许在这里吸烟。allow sb to do 允许某人做某事；allow doing允许做某事。根据句意故选D。 考点：考查冠词的用法。 2．(山东) There is a note pinned to the door ___________ when the shop will open again. A．saying B．says C．said D．having said 【答案】A 【解析】 试题分析：在这个句子中note和say是主动关系，所以要用saying。此处saying引导的句子做伴随状语。句意为：门上钉着张纸条，写着这家商店什么时候再营业。故答案选A。考点：考查非谓语动词。 【知识拓展】非谓语动词的选择要根据所填的动词及它所要修饰的逻辑主语之间的关系确定。doing表主动表进行；done表被动表完成；to do表目的表将来。 【名师点睛】本题考查非谓语。先把句子简化：There is a note (which is pinned to the door) saying when the shop will open again.伴随状语是指状语从句的动作伴随主句发生，它所表达的动作或状态是伴随着句子谓语动词的动作而发生或存在的，本题考查的是现在分词做伴随状语,用ing形式。现在分词短语表示与主句的主语在逻辑上有主谓关系，即表示主动意义；而过去分词短语则表示与主句的主语在逻辑上是动宾关系，即被动意义；如：He went to the classroom holding two books； He went to the forest , followed by two dogs. 3．We’ve had a good start, but next, more work needs _____to achieve the final success. A．being done B．do C．to be done D．to do 【答案】C 【解析】 试题分析：句意：我们有一个好的开端，但是下一步需要做更多的工作得到最后的目标。Need doing或need to be done需要被做…，所以选C。 考点：考查非谓语动词 4．________ the convenience of digital payment, many senior citizens started to use smart phones.
导数有关知识点总结、经典例题及解析、近年高考题带答案
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（1）函数f （x ）在点x 0处可导，是指0→?x 时，x y ??有极限。如果x y ??不存在极限，就说函数在点x 0处不可导， 或说无导数。 （2）x ?是自变量x 在x 0处的改变量，0≠?x 时，而y ?是函数值的改变量，可以是零。 由导数的定义可知，求函数y=f （x ）在点x 0处的导数的步骤： （1）求函数的增量y ?=f （x 0+x ?）－f （x 0）； （2）求平均变化率x y ??=x x f x x f ?-?+) ()(00； （3）取极限，得导数f’(x 0)=x y x ??→?0lim 。 二、导数的几何意义 函数y=f （x ）在点x 0处的导数的几何意义是曲线y=f （x ）在点p （x 0，f （x 0））处的切线的斜率。也就是说，曲线y=f （x ）在点p （x 0，f （x 0））处的切线的斜率是f’（x 0）。相应地，切线方程为y －y 0=f/（x 0）（x －x 0）。 三、几种常见函数的导数 ①0;C '= ②() 1;n n x nx -'= ③(sin )cos x x '=; ④(cos )sin x x '=-; ⑤();x x e e '=⑥()ln x x a a a ' =; ⑦ ()1ln x x '= ; ⑧()1 l g log a a o x e x '=. 四、两个函数的和、差、积的求导法则 法则1：两个函数的和(或差)的导数,等于这两个函数的导数的和(或差)， 即： ( .)' ''v u v u ±=± 法则2：两个函数的积的导数,等于第一个函数的导数乘以第二个函数,加上第一个函数乘以第二个函数的导数， 即： .)('''uv v u uv += 若C 为常数,则' ''''0)(Cu Cu Cu u C Cu =+=+=.即常数与函数的积的导数等于常数乘以函数的导数： .)(''Cu Cu = 法则3：两个函数的商的导数，等于分子的导数与分母的积，减去分母的导数与分子的积，再除以分母的平方： ? ?? ??v u ‘=2' 'v uv v u -（v ≠0）。 形如y=f [x (?])的函数称为复合函数。复合函数求导步骤：分解——求导——回代。法则：y ＇|x = y ＇|u ·u ＇|x 五、导数应用 1、单调区间： 一般地，设函数)(x f y =在某个区间可导，
【英语】非谓语动词易错题及解析
【英语】非谓语动词易错题及解析 一、单项选择非谓语动词 1．Distinguished guests and friends, welcome to our school, _____the ceremony of the 50th Anniversary this morning are our alumni （校友） from home and abroad. A．Attend B．To attend C．Attending D．Having attended 【答案】C 【解析】 主句 .Distinguished guests and friends are our alumni （校友） from home and abroad. Attending the ceremony of the 50th Anniversary this morning非谓语动词作伴随状语。 2．(天津) The hospital has recently obtained new medical equipment, ________ more patients to be treated. A．being allowed B．allowing C．having allowed D．allowed 【答案】B 【解析】 【详解】 考查非谓语动词。句意：近期这个医院购进了新的医疗设备，允许更多的病人被治疗。前句购进医疗设备和后面允许更多的病人被治疗之间是必然的结果关系，用doing即现在分词作结果状语，表示顺理成章的结果。A. being allowed表示被动且正在进行；C. having allowed 强调先于谓语动词发生；D. allowed表示被动且完成，故选B。 【点睛】 判断非谓语动词的形式的第一步是分析句子成分，看是用谓语动词还是非谓语动词，确定了是非谓语动词，还要判断非谓语动词的成分，和这个动词和逻辑主语的关系。 3．While waiting for the opportunity to get , Henry did his best to perform his duty. A．promote B．promoted C．promoting D．to promote 【答案】B 【解析】 试题分析：本题考查的非谓语动词的固定搭配“get+过去分词”，如“get burnt”被烫伤，get paid获得报酬；本句中的get promoted获得提拔。句意：在等待着背提拔的机会的时候，Herry全力以赴地尽好自己的责任。故B正确。 4．When we saw the road ________ with snow, we decided to spend the holiday at home. A．block B．to block C．blocking D．blocked
导数中的易错题
第20练 导数中的易错题 一、选择题 1．如果f ′(x )是二次函数，且f ′(x )的图象开口向上，顶点坐标为(1，3)，那么曲线y ＝f (x )上任意一点的切线的倾斜角α的取值范围是( ) A ．(0，π 3] B ．[π3，π 2) C ．(π2，2π 3 ] D ．[π 3 ，π) 2．(优质试题·福建福州三中月考)已知点A (1,2)在函数f (x )＝ax 3 的图象上，则过点A 的曲线C ： y ＝f (x )的切线方程是( ) A ．6x －y －4＝0 B ．x －4y ＋7＝0 C ．6x －y －4＝0或x －4y ＋7＝0 D ．6x －y －4＝0或3x －2y ＋1＝0 3．(优质试题·兰州诊断)在直角坐标系xOy 中，设P 是曲线C ：xy ＝1(x >0)上任意一点，l 是曲线C 在点P 处的切线，且l 交坐标轴于A ，B 两点，则以下结论正确的是( ) A ．△OAB 的面积为定值2 B ．△OAB 的面积有最小值3 C ．△OAB 的面积有最大值4 D ．△OAB 的面积的取值范围是[3,4] 4．若函数f (x )＝2x 2 －ln x 在其定义域内的一个子区间(k －1，k ＋1)内不是单调函数，则实数k 的取值范围是( ) A ．[1，＋∞) B ．[1，3 2) C ．[1,2) D ．[3 2 ，2) 5．若函数y ＝x 3 －3ax ＋a 在(1,2)内有极小值，则实数a 的取值范围是( ) A ．1 高考非谓语动词易错题汇总 一、单项选择非谓语动词 1．Mr. Wang made up his mind to devote all he could ____ his oral English before going abroad. A．improve B．to improving C．improving D．to improve 【答案】B 【解析】 【详解】 考查非谓语动词。句意：王先生决心在出国前尽其所能提高英语口语。此处是devote…to…“将……奉献给；把……专用于”，to是介词，he could (devote)是all的定语从句，由此可知，B项正确。故选B。 2．I’m afraid that I can’t attend Tom’s wedding party ______ next weekend. A．to be held B．being held C．held D．is to be held 【答案】A 【解析】 试题分析：考查非谓语动词作定语。句子中已经有了谓语can't attend，故此处应填非谓语动词，首先排除D。hold与party构成被动关系，但ABC答案均表被动。因此再根据时间状语next weekend可确定填不定式表将来，故选A。考查非谓语动词作定语时，要注意看与所修饰名词之间的关系，判断是主动还是被动。同时还要注意从时间上判定，不定式作定语表将来，现在分词表进行，过去分词表完成。 考点：考查非谓语动词作定语。 3．A hearty laugh relieves physical tension, _____your muscles relaxed for over half an hour. A．to leave B．left C．leaving D．leave 【答案】C 【解析】 【详解】 考查非谓语动词。句意：开怀大笑可以缓解身体紧张，至少可以使你的肌肉放松半小时。分析句子可知，空格处做伴随状语。且与逻辑主语laugh构成主动关系，所以用现在分词。故选C。 4． He is thought ___foolishly .Now he has no one but himself to blame for losing the job. A．to act B． to have acted C． acting D．having acted 【答案】B 【解析】 试题分析：句型“有人认为..已....”可用It is thought/ believed/ ...that sb have/has done...结构。从句中的动作发生在主句动作之前。该结构可转化为sb is thought/believed +不定式的完成式。如： 非谓语动词易错题解析 1. _________________(face) with a bill for $ 10,000, John has taken an extra job.（难度0.5） 2.He hurried to the booking office only _____________（tell）that all the tickets had been sold out.（难度0.6） 3. _____________（convince ）that the government can lead them out of the financial crisis, people are optimistic about the future of the country. （难度0.5） 4.After he became conscious , he remembered ___________(attack) and_______(hit)on the head with a rod.（难度0.5） 5. Isn't it time you got down to ____________ (mark )the papers? （难度0.5） 6. I don’t know whether you happen_______________(hear) it, but I am going to study in the United States this September.（难度1） 7. The country has already sent up three unmanned spacecraft, the most recent ______________________ (launch) at the end of last March. （难度0.9） 8. When asked why he went there, he said he was sent there _____________ (train) for a space flight. （难度0.5） 9. __ (say) that she didn’t do a good job, I don’t think I am abler than her. （难度0.9） 10. She wants her paintings ___________ (display) in the gallery, but we don t think they would be very popular. （难度0.6） 11. The flowers his friend gave him will die unless ______________ (water) every day. （难度0.6） 12. I feel greatly honored _________________(welcome) into their society. （难度0.7） 13. _______________(wait) in the queue for half an hour, the old man suddenly realized he had left the cheque in the car. （难度0.8） 14. _________ (search) the website of the Fire Department in your city, and you will learn a lot about firefighting. （难度0.6） 15. I hear they’ve promoted Tom, but he didn’t mention __________________(promote) when we talked on the phone. （难度0.7） 16. ___________(show) around the Water Cube, we were then taken to see the Bird’s Nest for the 2008 Olympic Games. （难度0.7） 17. ___________ (fail) to reach them on the phone, we sent an email instead. （难度0.6） 18. He was busy writing a story, only _____________(stop) once in a while to smoke a cigarette. （难度0.8） 19. If we have illegal immigrants ___________(come) in, many local workers will lose their jobs. （难度0.8） 20. Schools across China are expected to hire 50,000 college graduates this year as short-term teachers, almost three times the number hired last year, ____________ (help) reduce unemployment pressures.（难度0.6） 21. The government plans to bring in new laws ____________ (force) parents to take more responsibility for the education of their children. （难度0.6） 22. There is a great deal of evidence ______________ (indicate) that music activities engage different parts of the brain. （难度0.5） 2009年高考数学专题复习函数、导数部分错题精选 一、选择题： 1、已知函数()x f y =，[]b a x ,∈，那么集合()()[]{}(){} 2,,,,=∈=x y x b a x x f y y x 中元素的个数为（ ） A. 1 B. 0 C. 1或0 D. 1或2 2、已知函数()x f 的定义域为[0，1]，值域为[1，2]，则函数()2+x f 的定义域和值域分别是（ ） A. [0，1] ，[1，2] B. [2，3] ，[3，4] C. [-2，-1] ，[1，2] D. [-1，2] ，[3，4] 3、已知0＜a ＜1，b ＜-1，则函数b a y x +=的图象必定不经过（ ） A. 第一象限 B. 第二象限 C. 第三象限 D. 第四象限 4、将函数()x x f 2=的图象向左平移一个单位得到图象1C ，再将1C 向上平移一个单位得图象 2C ，作出2C 关于直线x y =对称的图象3C ，则3C 对应的函数的解析式为（ ） A. ()11log 2+-=x y B. ()11log 2--=x y C. ()11log 2++=x y D. ()11log 2-+=x y 5、已知函数()()x x f a -=2log 1在其定义域上单调递减，则函数()() 2 1log x x g a -=的单调 减区间是（ ） A. (]0,∞- B. ()0,1- C. [)+∞,0 D. [)1,0 6、函数x x x y sin cos -=在下面的哪个区间上是增函数（ ） A. ??? ??23,2ππ B. ()ππ2, C. ?? ? ??25,23ππ D. ()ππ3,2高考非谓语动词易错题汇总
非谓语动词易错题解析
函数及导数易错题精选