英语基础知识复习-I-K字母包括的单词、词组、句型
乐学教育剑桥KB1词汇及句型总结
剑桥少儿国际英语1级词汇表one two three four five six seven eight nine ten 一二三四五六七八九十blue green orange pink purple red yellow black 蓝色绿色橘色粉色紫色红色黄色黑色brown grey white棕色灰色白色book chair eraser pen pencil table书椅子橡皮钢笔铅笔桌子ball bike car computer doll train皮球自行车小汽车电脑洋娃娃火车in on under next to在…里在…上在..下在…旁边mother father brother sister grandmother grandfather 妈妈爸爸哥/弟姐/妹奶奶/姥姥爷爷/姥爷old young ugly beautiful happy sad tall 老的年轻的丑的漂亮的高兴的伤心的高的short small big long clean dirty矮的小的大的长的干净的脏的face ears eyes mouth nose teeth arm foot 脸耳朵眼睛嘴鼻子牙齿胳膊脚feet hand leg tail脚手腿尾巴crocodile elephant monkey giraffe hippo snake鳄鱼大象猴子长颈鹿河马蛇tiger老虎jacket shoes skirt socks trousers T-shirt 夹克衫鞋短裙袜子裤子半袖play football play basketball play tennis play the guitar踢足球打篮球打网球弹吉他play the piano swim ride a bike弹钢琴游泳骑自行车boat bus helicopter lorry motorbike plane 小船公交车直升机货车摩托车飞机bathroom bedroom dining room hall kitchen浴室卧室餐厅走廊厨房living room客厅apple banana burger cake chocolate ice cream苹果香蕉汉堡蛋糕巧克力冰激淋orange and but or橙子和但是或者，还是1.Hello,I’m …What’s your name ? 你好，我是。
(暑假一日一练)2020年中考英语一轮复习IJKL开头词汇(二)讲义
中考一轮复习IJKL开头词汇（二）（讲义）❤❤以字母IJKL 开头的单词K 段keep /kiːp/ v. (kept,kept)保持；保存，继续不断；培育，饲养keep quiet 保持安静keep calm 保持冷静keep one’s cool 沉住气；保持冷静keep (on) doing sth. 坚持做某事，一直在做某事keep away from 远离keep…to oneself保守秘密keep sb. from doing 阻止某人做某事 keepone’s word/keep a promise 遵守诺言keep out不进入；使……不进入keep up with 跟上keep…adj.There we put up our tents and made a fire to keep us warm and cook food on. borrow/keep buy/havekeeper /'kiːpə/ n. 饲养员；保管人key /kiː/ n. 钥匙；答案；键；关键the key to the door 门上的钥匙the key to success 成功的关键key wordskeyboard /'kiːbɔːd/ n. 键盘kick /kɪk/ v.&n. 踢kick sb off 开除某人He was really worried that his coach might kick him out of the team.kid /kɪd/ n. 小孩；年轻人kill /kɪl/ v. 杀死，弄死kilo=kilogram /'kiːləʊ/ n. 千克kilometre /'kɪlə,miːtə/ n.(美kilometer)千米，公里kind /kaɪnd/adj. 善良的；友好的n. 种；类kind of 稍微；有点a kind ofmany kinds ofall kinds ofkindness /'kaɪn(d)nɪs/ n. 仁慈；善良king /kɪŋ/ n. 国王kiss /kɪs/ n. 吻，亲吻v. 吻，接吻kitchen /'kɪtʃɪn/ n. 厨房kite /kaɪt/ n. 风筝fly a kite=fly kites knee /niː/ n. 膝盖knife /naɪf/ n.(复knives)刀knock /nɒk/n. 敲，击，敲打v. 敲，打，击knock at/on 敲……knock into 撞上knock sth. down/off/over etc. 碰倒，撞倒The dog managed to knock over a table.knock off (s th.) 停止（工作）；下班I don’t knock off until six.What time do you knock off work?know /nəʊ/ v. (knew, known)知道，了解；认识；懂得 be known for 以……闻名；以……出名well-known 著名的；众所周知的As far as I know, tea plants are grown on the sides of mountain.As we all know, pandas eat only bamboo.know about 了解know well 熟悉knowledge /'nɒlɪdʒ/ n. 知识，学问 [U]Knowledge is power. 知识就是力量。
英语基础知识复习-I字母包括的单词、词组、句型
英语基础知识复习-I字母包括的单词、词组、句型1. I pron. 我2. ice n. 冰；冰层Is the ice thick enough for skating. 这冰的厚度能禁得住在上边滑冰吗？ice cream n. 冰淇淋ice skating n. 滑冰ice tea n. 冰茶3. ID card n. (ID= identification) 身份证4. idea n.计划；主意have no idea=don't not know 不知道That’s a good idea. 那是个好主意。
He is full of ideas. 他足智多谋。
He has no idea how to manage people. 他不知道如何管理人们。
5. ideal adj. 理想的；完美的ideal weather for a holiday 度假的理想天气6. if conj. 假如；倘若引导条件状语从句“主将从现”If it doesn’t rain, we’ll have a picnic.如果明天不下雨，我们就去野餐。
I’ll come at 6：00 if (it is ) necessary. 如果必要，我6点种来。
与过去时连用表示假想的情况I would come early if I were you. 如果我是你，我就会早点去7. ill adj.不健康的；生病的He’s been ill for two weeks. 他病了两周了。
illness n.疾病；生病8. imagine v.想像；幻想Imagine a house with a big garden. 设想有一所大花园的房子。
Imagine that you are in London. 想象一下你正在伦敦。
9. immediately adv.立即；马上She answered almost immediately. 她几乎当下就答复了。
XX初中英语单词、短语、词组汇总(I、J、K开头)
XX初中英语单词、短语、词组汇总（I、J、K开头）XX初中英语单词、短语、词组汇总（I、j、k开头）IIpron.我icen.冰ice-creamn.冰淇淋idean.主意，意见，打算，想法ifconj.如果，假使；是否，是不是illa.有病的；不健康的illnessn.疾病imaginevt.想像，设想immediatea.立即的，马上immediatelyad.立即importv.&n.进口，输入importancen.重要性importanta.重要的impossiblea.不可能的improvevt.改进，更新inprep.在…里；在…；以…ad.在家，在内，向内includevt.包含，包括incomen.收入，所得incorrecta.不正确的，错误的increasev.&n.增加，繁殖India*n.印度Indiana.（美洲）印地安人的；印度人的n.印地安人；印度人industryn.工业，产业influencen.&v.影响Informvt.告诉；通知informationn.信息informationdesk问讯处inkn.墨水，油墨inlanda.内陆的；内地的insideprep.在…里面ad.在里面insistvi.坚持；坚决认为insteadad.代替，顶替instructvt.通知；指示；教instructionn.说明，须知；教导interestn.兴趣，趣味；利息interestinga.有趣的internationala.国际的internetn.互联网，英特网interviewn.&vt.采访，会见，面试intoprep.到……里；向内；变成introducevt.介绍introductionn.引进，介绍inventvt.发明，创造inventionn.发明，创造inventorn.发明者，创造者invitationn.邀请，请帖invitevt.邀请，招待ironn.铁，熨斗vt.熨烫islandn.岛itpron.它Italiana.意大利的；意大利语的n.意大利人；意大利语Italy*n.意大利itspron.它的itselfpron.它自己jjacketn.短上衣，夹克衫januaryn.1月japan*n.日本japanesea.日本的日本人的，日语的n.日本人，日语jeansn.牛仔裤jeepn.吉普车jobn.（一份）工作joinv.参加，加入；连接；会合joken.笑话journalistn.记者，新闻工作者journeyn.旅行，路程joyn.欢乐，高兴，乐趣juicen.汁、液juicya.多汁的；水分多的julyn.7月jumpn.跳跃；跳变v.跳跃；惊起；猛扑junen.6月juniora.初级的；年少的junkfood没有营养的食品just1ad.刚才；恰好；不过；仅kkeepv.保持；保存；继续不断vt.培育，饲养keepern.（动物园中的）饲养员，看守人keyn.钥匙；答案；键；关键keyboardn.键盘kickv.&n.踢kidn.小孩killv.杀死，弄死kilon.千克；千米kilogramn.千克kilometren.千米（公里）kindn.种；类a.善良的；友好的kindergartenn.幼儿园kind-hearteda.好心的kindnessn.仁慈；善良kingn.国王kingdomn.王国kissn.&vt.吻，亲吻kitchenn.厨房kiten.风筝kneen.膝盖knifen.小刀；匕首；刀片knockn.&v.敲；打；击 knowv.知道了解；认识；懂得knowledgen.知识，学问。
ket考试知识点
ket考试知识点一、词汇部分。
1. 日常话题词汇。
- 家庭与人物关系。
- 家庭成员称呼：father（爸爸）、mother（妈妈）、son（儿子）、daughter （女儿）、grandfather（爷爷/外公）、grandmother（奶奶/外婆）等。
- 人物描述词汇：tall（高的）、short（矮的）、fat（胖的）、thin（瘦的）、young（年轻的）、old（年老的）等。
- 学校生活。
- 学科名称：English（英语）、maths（数学）、science（科学）、history （历史）、geography（地理）等。
- 学校设施：classroom（教室）、library（图书馆）、playground（操场）、office（办公室）等。
- 食物与饮料。
- 食物：apple（苹果）、banana（香蕉）、bread（面包）、rice（米饭）、noodle（面条）等。
- 饮料：water（水）、juice（果汁）、tea（茶）、coffee（咖啡）等。
- 购物。
- 商品种类：clothes（衣服）、shoes（鞋子）、book（书）、toy（玩具）等。
- 购物相关词汇：shop（商店）、buy（购买）、sell（出售）、price（价格）等。
2. 高频动词短语。
- get up（起床）、go to bed（上床睡觉）、have breakfast/lunch/dinner （吃早餐/午餐/晚餐）、go to school（上学）、come from（来自）等。
3. 数字与时间表达。
- 数字。
- 基数词：1 - one、2 - two、3 - three……10 - ten、11 - eleven、12 - twelve、13 - thirteen……20 - twenty、30 - thirty等。
- 序数词：first（第一）、second（第二）、third（第三）等。
- 时间。
中考英语一轮复习 IJKL开头词汇(一)讲义
中考一轮复习IJKL开头词汇（一）（讲义）❤❤以字母IJKL 开头的单词icy /'aɪsɪ/ adj. 覆盖着冰的；冰冷的The roads were icy because of the heavy snow from the night before.idea /aɪ'dɪə/ n. 想法，主意Good idea! / _ (What/How) a good idea! / That’s(a/an) idea!We have no idea. / No idea.It also helps them to understand the idea of fairness.if /ɪf/ conj. 如果，假使；是否，是不是①条件状语从句引导词：if, unless, as/so long as, on condition (that), supposing, provided时态：主将从现、主情从现、主祈从现If he comes, Lucy will be very happy.Unless he can hide his tail, he cannot turn himself into a person. If you arenot too sleepy, let’s keep on discussing.I can tell you the truth on condition that you promise to keep a secret.He will sign the contract provided we offer more favorable terms (更优惠的条件).②if 当“是否”讲时，引导宾语从句。
时态：主现从任I don’t know if it (rain) tomorrow. I (not go) to play basketball if it(rain) tomorrow.ill /ɪl/ adj. (worse, worst)有病的；不舒服的作表语sick 有病的ill 有病的作定语 a sick girl 一个生病的女孩。
【词汇】9.2019词汇冲刺单词+词组+句型(ij、k)
单词+词组+句型，20天轻松搞定3500词（I、J、K）1. idea n. 想法，主意，概念have some/no idea + 从句/of… 知道/不知道......I have no idea why she left.I have no idea of his address.2. identity n. 身份，一致The police are trying to discover the identity of the killer.The thief used a false identity.identity card=ID card 身份证3. ill adj.生病的，坏的，邪恶的ill与sick的区别：ill当生病讲时只做表语，sick当生病讲时可做表语也可作定语。
He was ill/sick.a sick motherhave a bad/an ill effect on 对...…影响不好ill adv. 不利地；恶劣地speak/think ill of sb. 说某人的坏话4. illegal adj. 非法的，违法的It is illegal to drive through a red light.illegally adv.He entered the country illegally.5. imagine v.想象imagine sth./doing sth.I can’t imagine life without the children now.I can’t imagine his becoming a teacher.6. immediately adv. 立刻，立即，直接地He answered almost immediately.Turn right immediately after the church.immediately conj. 一……就……Immediately he had gone,I remembered his name.他一走，我就想起了他的名字。
英语数学词汇I和K
数学专业词汇对照以字母I--K 开头i'hospital rule 洛必达规则iconic model 图象模型icosahedral 二十面体的icosahedron 二十面体ideal 理想ideal boundary 理想边界ideal class group 理想类群ideal group 理想群ideal number 理想数ideal point 理想点idele 伊代尔idele class group 伊代尔类群idele group 伊代尔群idemfactor 幂等因子idempotence law 幂等律idempotency 幂等性idempotent 幂等元素idempotent law 幂等律idempotent ring 幂等环idempotent semigroup 幂等半群identical operation 相同运算identical operator 恒等算子identical permutation 恒等排列identical relation 恒等关系式identical representation 恒等表示identical transformation 恒等变换identically distributed 恒等分布的identifiability 能识性identification 同化identification map 粘合映射identification of the first kind 第一类粘合identification topology 同化拓扑identities of kronecker 克罗内克恒等式identity 恒等式identity element 单位元identity function 恒等函数identity graph 恒等图identity map 恒等映射identity operator 恒等算子identity permutation 恒等排列identity theorem 恒等定理if and only if 当且仅当ill conditioned 病态的ill conditioned matrix 病态阵ill posed problem 不适定问题illusory correlation 产生错觉相关image 象集image point 象点image set 象集image space 象空间imaginary 虚数imaginary axis 虚轴imaginary circle 虚圆imaginary ellipsoid 虚椭圆面imaginary number 虚数imaginary part 虚部imaginary plane 虚平面imaginary point 虚点imaginary root 虚根imaginary sphere 虚球imaginary unit 虚数单位imbalance 不稳定imbedded prime ideal 嵌入素理想imbedding 嵌入imbedding method 嵌入法imbedding theorem 嵌入定理immeasurability 非可测的immeasurable 不可度量的immediate 直接的immediate inference 直接推理immediate predecessor 直前仟immediate successor 紧接后元immersed manifold 浸入的廖immersed submanifold 浸入的子廖immersed variety 浸入的廖immersion 浸入impact matrix 碰撞矩阵imperfect field 不完全域implicate 蕴涵implication 蕴涵implicit 隐含的implicit definition 隐定义implicit difference scheme 隐式差分格式implicit differential equation 隐式微分方程implicit differentiation 隐微分法implicit function 隐函数implicit function theorem 隐函数定理imponderability 不可称量性impossibility proof 不可能性证明impossible event 不可能事件impredicative definition 非断言定义imprimitive group 非本原群improper 非正常的improper differentiability 非正常可微性improper divergence 非正常发散improper face 假面improper fraction 假分数improper fractional function 假分数函数improper function 拟函数improper integral 反常积分improper integral of the first kind 第一种反常积分improper limit value 非正常极限值improper orthogonal matrix 非正常正交阵improper rotation 非正常旋转improper singularity 非正常奇点improper symbol 非正常符号improperly integrable function 反常可积函数impulse response 脉冲响应impulsion 脉冲imputation 分配in counter clockwise direction 反时针方向in terms by terms 逐项地inaccessible boundary point 不可达边界点inaccessible element 不可达元素inaccessible number 不可达数inaccessible ordinal 不可达序数inaccuracy 不精密incenter 内心incentre 内心inch 英寸incidence 关联incidence angle 入射角incidence formula 关联公式incidence matrix 关联矩阵incidence number 关联数incidence relation 关联关系incircle 内切圆inclination 倾斜inclination of a line 直线的倾角inclined plane 斜面include 包含included angle 夹角inclusion 包含inclusion functor 包含函子inclusion map 包含映射inclusion relation 包含关系incommensurability 不能通约incommensurable quantities 不可通约量incommensurable segments 不可通约线段incompatibility 不相容性incompatible equations 不相容方程incomplete beta function 不完全函数incomplete equation 不完全方程incomplete factorial function 不完全阶乘函数incomplete gamma function 不完全函数incomplete induction 不完全归纳法incomplete polynomial 不完全多项式incompleteness 不完全性incompleteness theorem 不完全性定理incompressibility 非压缩性incompressible 不可压缩的incongruent 不同余的inconsistency 不一致性inconsistent equations 不相容方程inconsistent estimator 不相容估计量inconsistent formal system 不相容形式系统incorrect proposition 错误命题increase 增加increasing directed set 上方有向集increasing function 增函数increasing progression 递增级数increasing sequence 增序列increasing series 递增级数increasing transfinite sequence 递增超限序列increment 增量increment of a function 函数的增量indecomposable 不可分解的indefinable 难下定义的indefinite form 不定形式indefinite integral 不定积分的indefinite operator 不定算子indefinite total variation 不定全变差indefiniteness 无定性indegree 入度independence 独立independence from path 从路独立性independent axioms 独立公理independent events 独立事件independent sampling 独立抽样independent set 独立集independent system 独立系independent tests 独立检验independent variable 自变量indeterminacy 不确定性indeterminancy principle 测不准原理indeterminate equation 不定方程indeterminate form 不定式indeterminate system of equations 不定方程组indetermined 不定的index 解析指数index number 指数index of a radical 根式的指数index of imprimitivity 非本原指标index of inertia 惯性指数index of operator 算子的指数index of speciality 特性的指数index set 指标集index theorem 指数定理indexing 标引indicator function 指标函数indicator function of event 事件的指标函数indicatrix 标形indicial equation 决定方程indifference region 无差别区域indirect numerical method 间接数值法indirect proof 间接证明indirect sampling 间接抽样indiscrete space 密着空间indiscrete topology 密着拓扑individual 个体individual ergodic theorem 个体遍历定理indivisible 除不尽的indivisible element 除不尽元素induce 诱导induced bundle 诱导纤维丛induced cohomology homomorphism 导出上同调induced fiber bundle 诱导纤维丛induced homomorphism 导出同态induced topology 诱导拓扑induction 归纳induction hypothesis 归纳假设induction method 归纳法induction rule 归纳规则induction step 归纳步骤induction variable 归纳变量inductional assumption 归纳假设inductive dimension 归纳维数inductive limit 归纳限inductive system 归纳系inductively ordered set 归纳有序集inequalities in physics 物理学中的不等式inequality 不等式inequality constraint 不等式约束inequality sign 不等号inequilateral 不等边的inertia 惯性inertia group 惯性群inertial force 惯性力inertial system 惯性系inference 推论inference pattern 推理模型inferior limit 下极限infimum 最大下界infinite 无穷的infinite decimal 无尽小数infinite dimensional 无限维的infinite distributivity 无限分配性infinite half plane 半无限平面infinite induction 无限归纳infinite integral 第一种反常积分infinite interval 无限区间infinite matrix 无限矩阵infinite of the same order 同阶无穷大infinite place 无限位infinite point 无限远点infinite product 无穷乘积infinite progression 无穷级数infinite sequence 无限序列infinite series 无穷级数infinite set 无限集infinite space 无限空间infinite system of differential equations 无穷微分方程组infinite system of linear equations 无穷线性方程组infinitely continuously derivable function 无限次连续可微函数infinitely divisible distribution 无穷可分分布infinitely divisible measure 无穷可分测度infinitely divisible variate 无穷可分变量infinitely near point 无限接近点infinitely small 无穷小的infinitesimal 无穷小infinitesimal analysis 微积分infinitesimal calculus 微积分infinitesimal contact transformation 无穷小切变换infinitesimal deformation 无穷小形变infinitesimal displacement 无穷小位移infinitesimal generator 无穷小算子infinitesimal operator 无穷小算子infinitesimal quantity 无穷小infinitesimal rigidity 无穷小刚性infinitesimal rotation 无穷小旋转infinitesimal transformation 无穷小变换infinity 无穷大inflation 膨胀inflection 拐折inflexion 拐折inflexional asymptote 拐渐近线inflexional tangent 拐切线influence 影响information processing 信息处理information set 信息集information source 信息源information theory 信息论inhomogeneity 不均匀性inhomogeneous 非齐次的inhomogeneous coordinates 非齐次坐标inhomogeneous equation 非齐次方程inhomogeneous integral equation 非齐次积分方程inhomogeneous lorentz group 非齐次络论茨群initial 初始的initial approximation 初始近似initial condition 初始条件initial data 原始数据initial distribution 初始分布initial error 初始错误initial manifold 初始廖initial phase 初相initial point 始点initial position 初始位置initial set 始集initial solution 初始解initial state 初态initial strip 初始带initial term 初项initial value 初值initial value problem 柯问题initial value theorem 初值定理initial velocity 初速度initial vertex 初始顶点injection 单射injective dimension 单射维数injective envelope 单射包络injective mapping 单射injective object 单射对象injectivity 内射性inner automorphism 内自同构inner capacity 内容量inner derivation 内部求导inner normal 内法线inner point 内点inner product 纯量积inner product module 内积模inner product space 内积空间innumerability 无数innumerable 无数的input 入口input alphabet 输入字母input device 输入装置input error 输入数据误差input flow 输入流input function 输入函数input routine 输入程序input signal 输入信号input state 输入状态input unit 输入装置input variable 输入值inradius 内径inscribe 内接inscribed angle 圆周角inscribed circle 内切圆inscribed polygon 内接多边形inscribed quadrangle 内接四边形inscribed tetragon 内接四边形inscribed triangle 内接三角形inseparable 不可分的inseparable degree 不可分次数inseparable element 不可分元inseparable extension 不可分扩张inseparable isogeny 不可分同种inseparable polynomial 不可分多项式insertion 嵌入inside 内部的insoluble equation 不可解方程instability 不稳定性instability constant 不稳定常数instantaneous velocity 瞬时速度instruction 指令instruction address 指令地址instruction code 指令码instruction register 指令寄存器instruction system 指令系统instruction word 指令码insurance 保险insurance calculus 保险演算insurance mathematics 保险数学integer 整数integer linear optimization 整数线性最优化integer optimization 整数规划integer part 整数部分integer polyhedron 整数多面体integer programming 整数规划integer solution 整数解integer valued function 整数值函数integrability 可积性integrability conditions 可积条件integrability in the sense of riemann 黎曼可积性integrable 可积的integrable function 可积函数integral 积分integral calculus 积分学integral closure 整闭包integral conoid 积分劈锥面integral cosine 余弦积分integral criterion 积分判别准则integral curvature 总曲率integral curve 积分曲线integral domain 整环integral element 积分元素integral equation 积分方程integral exponential 积分指数integral formula 积分公式integral formula of cauchy 柯锡分公式integral function 整函数integral geometry 积分几何学integral homology functor 整同弹子integral homology group 整同岛integral homology theory 整同帝integral ideal 整理想integral inequality 积分不等式integral invariant 积分不变式integral kernel 积分核integral logarithm 积分对数integral number 整数integral of a differential equation 微分方程的积分integral of a function 函数的积分integral operator 积分算子integral part 整数部分integral point 整点integral quaternion 整四元数integral rational function 整有理函数integral relation 积分关系integral representation 积分表示;整数表示integral sign 积分符号integral strip 积分带integral surface 积分曲面integral table 积分表integral theorem 积分定理integral theorem of cauchy 柯锡分定理integral transcendental function 整超越函数integral transform 积分变换integral vector 积分向量integrand 被积函数integraph 积分仪integrate 积分integrating factor 积分因子integrating wheel 积分轮integration 积分integration by parts 分部积分法integration by substitution 代换积分法integration constant 积分常数integration operator 积分算子integration term by term 逐项积分integration theory 积分论integration variable 积分变数integrator 积分仪integrimeter 求积仪integro differential equation 积分微分方程integro differential operator 积分微分算子intension 内涵intensity 强度interchange 交换interclass correlation 组内相关interest rate 利率interference 干涉interference function 干涉函数interior 内部interior alternate angles 内错角interior angle 内角interior approximation 内逼近interior boundary problem 内边值问题interior cross sectional measure 内截面测度interior domain 内域interior edge 内部棱interior lebesgue measure 勒贝格内测度interior mapping 开映射interior measure 内测度interior normal 内法线interior of domain 域的内部interior opposite angle 内对角interior point 内点interior problem 内边值问题interior surface 内面intermediate convergent 中间渐近分数intermediate differential 中间微分intermediate field 中间域intermediate fraction 中间渐近分数intermediate group 中间群intermediate integral 中间积分intermediate language 中间语言intermediate result 中间结果intermediate value 介值intermediate value theorem 介值定理intermediate variable 中间变量internal division 内分internal memory 内存储器internal ratio 内比internal storage 内存储器internal store 内存储器internal tangent of two circles 二圆的内切线internal transformation 内点变换internal vertex 内部顶点internally tangent 内切的international system of units 国际单位制interpenetrating samples 互相负穿样本interpolate 插值interpolating spline function 内插样条函数interpolation 插值interpolation error 插值误差interpolation formula 插值公式interpolation function 插值函数interpolation method 插值法interpolation of operators 算子插值interpolation polynomial 插值多项式interpolation problem 插值问题interpolation quadrature formula 插值求积公式interpretater routine 解释程序interpretation 解释interquartile range 四分位数间距intersect 交intersect transversally 相交横截intersecting lines 相交线intersection 交intersection chart 网络图intersection graph 相交图intersection multiplicity 相交重数intersection number 交数intersection point 交点intersection ring 交环intersection theorems 相交定理intersectionproduct 交*积interval 区间interval algebra 区间代数interval analysis 区间分析interval closed at the right 右闭区间interval estimation 区域估计interval function 区间函数interval graph 区间图interval of convergence 收敛区间interval of definition 定义区间interval topology 区间拓扑intra class correlation 同类相关intra class correlation coefficient 同类相关系数intransitive group 非可迁群intransitive relation 非可递关系intransitivity 非可迁性intrinsic geometry 内蕴几何学intrinsic property 内蕴性质intuition 直观intuitionism 直觉皱intuitionist logic 直觉皱逻辑intuitionistic 直觉皱的intuitive 直观的invariability 不变invariable 不变的invariance 不变性invariance theorem 不变性定理invariant 不变式invariant continuation 不变开拓invariant element 不变元invariant factor 不变因子invariant lie subgroup 不变李子群invariant measure 不变测度invariant of an equation 方程的不变量invariant property 不变性invariant set 不变集invariant subalgebra 不变子代数invariant subgroup 不变子群invariant subset 不变子集invariant subspace 不变子空间invariant test 不变检定invariant theory 不变量理论inventory control 库存管理论inverse 逆元inverse calculation 逆计算inverse circular function 反三角函数inverse correspondence 逆对应inverse cosecant 逆余割inverse cosine 逆余弦inverse cotangent 逆余切inverse curve 反曲线inverse element 逆元inverse figure 逆图形inverse form 逆形式inverse fraction 反分数inverse function 反函数inverse hyperbolic function 反双曲函数inverse image 逆象inverse interpolation 逆插法inverse isomorphism 反同构inverse isoperimetric problem 逆等周问题inverse isotone mapping 逆保序映射inverse laplace transform 逆拉普拉斯变换inverse laplace transformation 拉普拉斯逆变换inverse limit 逆向极限inverse logarithm 反对数inverse mapping 逆映射inverse matrix 逆阵inverse number 反数inverse operation 逆运算inverse operator 逆算子inverse permutation 逆置换inverse polish notation 逆波兰表示法inverse problem 逆问题inverse proportion 反比inverse proposition 逆命题inverse quaternion 反四元数inverse relation 逆关系inverse secant 反正割inverse similarity 逆相似性inverse sine 逆正弦inverse spectrum 逆谱inverse square law 平方反比定律inverse system 逆向系inverse tangent 反正切inverse theorem 逆定理inverse transformation 反变换inverse trigonometric function 反三角函数inverse value 逆值inverse vector iteration 逆向量迭代inversely proportional quantities 反比例量inversely well ordered set 逆良序集inversion 反演inversion formula 反演公式inversion of a point 点的反演inversion principle 反演原理inversion problem 反演问题inversion theorem 反演定理inversor 反演器invert 翻转invertibility 可逆性invertible element 可逆元invertible fractional ideal 可逆分式理想invertible map 可逆映射invertible matrix 可逆矩阵invertible module 可逆加法群invertible operator 可逆算子invertible sheaf 可逆层invertible transformation 可逆变换involute 渐伸线involution 对合involutorial anti automorphism 对合反自同构involutory algebra 对合代数involutory matrix 对合矩阵involutory system 对合系involve 包含irrational 无理的irrational algebraic expression 无理代数式irrational equation 无理方程irrational fraction 无理分数irrational function 无理函数irrational number 无理数irrationality 无理性irreducibility 既约性irreducibility criterion 不可约性判别准则irreducible 不可约的irreducible algebraic correspondence 不可约代数对应irreducible algebraic variety 不可约代数簇irreducible branch 不可约分支irreducible case 不可约情形irreducible character 不可约特贞irreducible constituent 不可约组成成分irreducible curve 不可约曲线irreducible element 不可约元irreducible equation 不可约方程irreducible factor 不可约因子irreducible generating set 不可约生成集irreducible markov chain 不可约马尔可夫链irreducible matrix 不可约阵irreducible polynomial 不可约多项式irreducible proof 不可约证明irreducible quadratic form 不可约二次形式irreducible r module 不可约r 模irreducible representation 不可约表示irreducible set 不可约集irreflexible 不反射的irreflexive relation 非自反关系irreflexively partially ordered set 非自反半序集irreflexivity 反自反性irregular 不正则的;不规则的irregular birational transformation 非正则双有理变换irregular divisor class 非正则因子类irregular point 非正则点irregular singular point 非正则奇点irregularity 非正则性irreversibility 不可逆性irreversible 不可逆的irreversible process 不可逆过程irrotational 无旋的irrotational vector field 无涡向量场isobaric surface 等压面isochronous curve 等时曲线isogeneous algebraic group 同种代数群isogeny 同种isogon 等角多角形isogonal 等角的isogonal affine transformation 等角仿射变换isogonal conformal mapping 等角映射isogonal conformal transformation 等角映射isogonal conjugate lines 等角共轭线isogonal trajectory 等角轨线isogonal transformation 保角映射isogonality 等角变换isohypse 等压等高线isolate 抽数isolated element 孤立元素isolated point 孤点isolated prime ideal 孤立素理想isolated set 离散集isolated singular point 孤立奇点isolated subgroup 孤立子群isolated vertex 孤立项点isometric 同度量的isometric chart 等距图isometric circle 等距圆isometric embedding 等距嵌入isometric form 等距形式isometric mapping 等距映射isometric operator 等距算子isometric space 等距空间isometric stereogram 等距图isometric surface 等距曲面isometric transformation 同度量度换isometry 等距映射isomorphic 同构的isomorphic complex 同相复形isomorphic field 同构域isomorphic graph 同构图isomorphic group 同构群isomorphic image 同构象isomorphic map 同构象isomorphic mapping 同构映射isomorphic partially ordered set 同构半序集isomorphism 同构isomorphism class 同构类isomorphism condition 同构条件isomorphism invariant 同构不变量isomorphism problem 同构问题isomorphism theorems 同构定理isomorphism theorems of group theory 群论的同构定理isomorphism type 同构型isoperimetric 等周的isoperimetric figure 等周形isoperimetric inequality 等周不等式isoperimetric parameter 等周参数isoperimetric problem 等周问题isopleth 等值线isoptic curve 切角曲线isosceles 等腰的isosceles trapezoid 等腰梯形isosceles triangle 等腰三角形isotherm 等温线isothermal parameter 等温参数isothermal parameter curve 等温参数曲线isothermal surface 等温曲面isothermalasymptotic surface 等温渐近曲面isothermic system of curves 等温曲线系isotone mapping 保序映射isotone transformation 保序变换isotone valuation 保序赋值isotonic injective mapping 保序单射映射isotonic mapping 保序映射isotony 保序性isotopic embedding 合痕嵌入isotopic figure 合痕图形isotopic groupoid 合痕广群isotopic knot 合痕纽结isotopic quasi fields 合痕拟域isotopy 合痕isotopy class 合痕类isotopy invariant 合痕不变式isotopy type 合痕型isotropic 蛤同性的isotropic body 蛤同性体isotropic cone 迷向锥面isotropic curvature 迷向曲率isotropic curve 迷向曲线isotropic line 迷向线isotropic matter 蛤同性物质isotropic surface 迷向曲面isotropic vector 迷向向量isotropy 迷向isotropy group 迷向群isthmus 分离棱iterate 迭代iterated function 叠函数iterated integral 累积分iterated kernel 叠核iterated limit 迭代极限iterated logarithm 叠对数iterated series 叠级数iterating 重复iteration 迭代iteration loop 迭代循环iteration method 迭代法iteration step 迭代步iterative computation 迭代计算iterative method 迭代法iterative method for eigenvalue problems 特盏问题迭代法iwasawa decomposition 伊娃沙娃分解jacobi bracket 雅可比括号jacobi canonical form 雅可比标准型jacobi criterion 雅可比准则jacobi identity 雅可比恒等式jacobi method 雅可比法jacobi polynomial 雅可比多项式jacobian 函数行列式jacobian curve 雅可比曲线jacobian matrix 函数矩阵jacobian method of eigenvalue problem 特盏问题的雅可比法jacobian variety 雅可比簇jacobson radical 雅讣森根基jet 导网join 并集joint distribution 联合分布jordan algebra 约当代数jordan automorphism 约当自同构jordan canonical form theorem 约当标准型定理jordan curve 约当曲线jordan dedekind chain condition 约当绰金链条件jordan domain 约当域jordan homomorphism 约当同态jordan matrix 约当矩阵jordan measurable 约当可测的jordan measure 约当测度jordan module 约当模jordan normal form 约当标准型jordan ring 约当环joukowski function 儒可夫斯基函数judgment 判断jump 跳跃jump function 跳跃函数jump instruction 转移指令jump point 跳跃点juxtaposition 并列k connected graph k 连通图k isomorphism k 同构k rational point k 有理点k samples problem k 样本问题k statistic k 统计量k th moment k 阶矩k theory k 理论k vertex connected graph k 连通图k3 surface k3 曲面kaplansky density theorem 卡普兰斯基稠密性定理kappa curve 曲线karnaugh map 卡诺图kelvin transformation 凯尔文变换kepler equation 开普勒方程kepler laws 开普勒定律kernel 核kernel function 核kernel of an integral equation 积分方程的核kernel of integral operator 积分算子核kernel of linear mapping 线性映射的核kernel preserving functor 核保存函子key 链keyboard 盘killing form 基林形式kilogram 公斤kinematic potential 动势kinematics 运动学kinetic energy 动能kinetics 动力学kirchhoff law 克希霍夫定律klein bottle 克莱茵瓶klein coordinates 克莱茵坐标klein geometry 克莱茵几何klein model 克莱茵模型kleinian function 克莱茵函数kleinian group 克莱茵群knot 纽结knot complement 结点余空间knot theory 纽结理论known 己知known number 已知数kolmogorov criterion 柯尔莫哥洛夫准则kolmogorov smirnov test 柯尔莫哥洛夫斯米尔诺夫检验kolmogorov test 柯尔莫哥洛夫检验krein milman property 克莱因米尔曼性质kronecker delta 克罗内克符号kronecker existence theorem 克罗内克存在性定理kronecker index 克罗内克指数kronecker product 克罗内克积kronecker symbol 克罗内克符号kuhn tucker theorem 库二克定理kummer surface 库默尔曲面kummer test 库默尔判据kurtosis 峰态。
2020年中考英语复习之重点核心词汇详解7：I、J、K字部
2020年中考英语复习之重点核心词汇详解专题七I、J、K字部1. illadj.生病的，有病的关联词组：fall ill生病；feel ill感到不适；seriously/badly ill病重ill和sick的区别：○1表示“生病的”意义时，ill通常只作表语，跟在系动词后面，例如be/become/get/look/seem ill；○2表示“生病的”意义时，sick可作表语，也可作定语，例如：A vet helps sick pets and other animals.兽医帮助生病的宠物和别的动物。
词性转换：illness=sickness n.疾病（2019，浙江卷，完形）___2___, their economic(经济的) situation changed when she became ill with laryngitis(喉炎) in 1894.2. A. Although B. So C. However D. Besides2. imaginev.想象；设想○1imagine + 名词或代词：The house was just as she had imagined it.这房子正是她所想象的。
○2imagine + that/wh-从句（that可省略），表示“胡乱猜想……；认为……”：Close your eyes and imagine (that) you are in a forest.闭上眼睛，设想自己在森林里。
○3imagine + doing 想象做某事：Imagine doing a horrible job like that!想象一下做那种可怕的工作吧！○4imagine sb./sth. (to be)…：The boy imagined himself (to be) a pilot.那个男孩想象自己是一名飞行员。
词性转换：imagination n.想象；imaginative adj.富有想象力的；imaginable adj.想象得到的；可想象的（2019，浙江卷，阅读B）But most people in the world live in fear of things that they imagine.3. immediatelyadv.立刻，立即用法：immediately常常和一些词搭配使用，比如：immediately after/following在……之后立即；immediately before在……之前立即；immediately behind/above/below/in front of sth.后面/上面/下面/前面紧挨着……：the seat immediately behind the driver驾驶员正后方的那个座位词性转换：immediate adj.立刻的，直接的同义词：immediately=at once=right away（2019，浙江卷，单项填空）5.Betty felt so tired last night that she ____________ fell asleep in bed after lying down.A. recentlyB. suddenlyC. frequentlyD. immediately4. importantadj.重要的关联词组：play an important role起到重要作用用法：important后面可接介词for/to，表示“对……很重要”；常用语It is important (for sb.) to do sth.结构，表示“（对……来说）做某事很重要”：It is important to follow the doctor’s advice.词性转换：importance n.重要性，价值；importantly adv.重要地（2019，山东卷，阅读B）So the family set out for Mongolia, where horses have been important for long.5. improvev.改进，改善，提高；变得更好用法：improve可作及物动词，后接名词或代词作宾语；也可作不及物动词，后面接状语成分：Many wines improve with age (= get better as they get older ).很多葡萄酒年代越久越香醇。
高中3500个英语单词K和L字母
高中3500个英语单词K和L字母小编今天整理了高中生3500个单词里的首字母K和L的部分，高中的同学赶紧收藏起来学习一下吧，记熟了会你的学习很有帮助哦，同学们赶紧收藏起来好好学吧Kkangaroo [kæŋɡəˈruː] n. 大袋鼠keep (kept, kept) [kiːp] v. 保持;保存;继续不断 vt. 培育, 饲养keeper [ˈkiːpə(r)] n. (动物园中的)饲养员, 看守人kettle [ˈket(ə)l] n. (烧水用的)水壶key [kiː] n. 钥匙;答案;键;关键keyboard [kiːbɔːd] n. 键盘kick [kɪk] v.& n. 踢kid [kɪd] n. 小孩kill [kɪl] v. 杀死, 弄死kilo [ˈkiːləʊ] n. 千克;千米kilogram [ˈkɪləɡræm] n. 千克kilometre ['kiləʊmi:tə(r)] e n. 千米(公里)kind [kaɪnd] n. 种;类 a. 善良,友好的kindergarten [kɪndəˈɡɑːt(ə)n] n. 幼儿园kind-hearted [kaɪnd- 'hɑ:tid] a. 好心的kindness [ˈkaɪndnɪs] n. 仁慈;善良king [kɪŋ] n. 国王kingdom [ˈkɪŋdəm] n. 王国kiss [kɪs] n.& vt. 吻, 亲吻kitchen [ˈkɪtʃɪn] n. 厨房kite [kaɪt] n. 风筝knee [niː] n. 膝盖knife [naɪf] (复 knives) n.小刀;匕首;刀片knock [nɔk] n.& v. 敲;打;击 ?know(knew,known) [nəʊ] v. 知道, 了解;认识;懂得knowledge [ˈnɔlɪdʒ] n. 知识, 学问Llab [ˈnɔlɪdʒ] = laboratory n. 实验室labour (美labor) [ˈleɪbə(r)] n. 劳动labourer (laborer) ['leibərə] n.体力劳动者lack [læk] n.& vt. 缺乏, 缺少ladder [ˈlædə(r)] r n. 梯子lady [ˈleɪdɪ] n. 女士, 夫人lake [leɪk] n. 湖lamb [læm] n. 羔羊lame [leɪm] a. 跛的, 瘸的, 残废的lamp [læmp] n. 灯, 油灯;光源land [lænd] n.陆地,土地v.登岸(陆)降落language [ˈlæŋɡwɪdʒ] n. 语言lantern [ˈlæntən] n. 灯笼;提灯lap [læp] n. (人坐时)膝部.(跑道的)一圈large [lɑːdʒ] a. 大的;巨大的laser [ˈleɪzə(r)] n. 激光last [lɑːst; (US) læst] a.最近刚过去;最后的ad.最近刚过去;最后地n.最后v.持续late [leɪt] a.晚的,迟的ad.晚地,迟地lately [ˈleɪtlɪ] ad. 最近, 不久前later [ˈleɪtə(r)] a. 晚些的, 迟些的latest [ˈleɪtɪst] a.最近, 最新的;最晚的latter [ˈlætə(r)] n.(两者之中的)后者laugh [lɑːf] n.& v. 笑, 大笑;嘲笑laughter [ˈlɑːftə(r); (US) ˈlæftər] n. 笑; 笑声laundry [ˈlɔːndrɪ] n. 洗衣店;要洗的衣服lavatory [ˈlævətrɪ; (US) ˈlævətɔːrɪ] n. 便所, 厕所law [lɔː] n. 法律, 法令;定律lawyer [ˈlɔːjə(r), ˈlɔɪə(r)] n. 律师lay (laid, laid) [leɪ] vt. 放, 搁lazy [ˈleɪzɪ] a. 懒惰的lead (led, led) [liːd] v. 领导, 带领 n. 铅leader [ˈliːdə(r)] n. 领袖, 领导人leading [ˈliːdɪŋ] a. 最主要的, 第一位的leaf (复 leaves) [liːf] n. (树, 菜)叶league [liːɡ] n. 联盟, 社团leak [liːk] vi. 漏; 渗learn (learnt, learnt;--ed --ed) [lɜːn] vt. 学, 学习, 学会learned [ˈlɜːnɪd] a. 有才华的;博学的least [liːst] n.最少, 最少量leather [ˈleðə(r)] n. 皮革leave (left, left) [liːv] v. 离开;把…留下, 剩下lecture [ˈlektʃə(r)] n. 讲课, 演讲left [left] a.左边的 ad.向左 n.左,左边left-handed [left- ' hændid] a. 惯用左手的leftover ['leftˌəuvə] a.剩余,剩下的n.剩饭菜left-wing [left-wɪŋ] n. 左翼的leg [leɡ] n. 腿;腿脚;支柱legal [ˈliːɡ(ə)l] a.与法律有关的, 法律的lemon [ˈlemən] n. 柠檬 a. 柠檬色(味)的lemonade [leməˈneɪd] n. 柠檬水lend (lent, lent) [lend] vt.借(出),把…借给length [leŋθ] n. 长, 长度, 段, 节less(little的比较级) [les] a.& ad. 少于,小于lesson [ˈles(ə)n] n. 课;功课;教训let (let, let) [let] vt. 让letter [ˈletə(r)] n. 信;字母letter-box [ˈletə(r)- bɔks] n. 信箱level [ˈlev(ə)l] n. 水平线, 水平liberty [ˈlɪbətɪ] n. 自由liberate [ˈlɪbəreɪt] vt. 解放, 使获自由liberation [lɪbəˈreɪʃ(ə)n] n. 解放librarian [laɪˈbreərɪən] n. 图书管理员;(西方的)图书馆馆长library [ˈlaɪbrərɪ; (US) ˈlaɪbrerɪ] n. 图书馆, 图书室。
2018届中考英语一轮复习教案：IJKL开头词汇(二)(讲义含答案)
中考一轮复习IJKL开头词汇（二）（讲义）❤❤以字母IJKL开头的单词K段keep /kiːp/ v. (kept,kept)保持；保存，继续不断；培育，饲养keep quiet 保持安静keep calm 保持冷静keep one’s cool沉住气；保持冷静keep (on) doing sth. 坚持做某事，一直在做某事keep away from 远离keep…to oneself保守秘密keep sb. from doing 阻止某人做某事keep one’s word/keep a promise 遵守诺言keep out 不进入；使……不进入keep up with 跟上keep…adj.There we put up our tents and made a fire to keep us warm and cook food on.borrow/keep buy/havekeeper /'kiːpə/ n.饲养员；保管人key/kiː/ n. 钥匙；答案；键；关键the key to the door 门上的钥匙the key to success 成功的关键key wordskeyboard/'kiːbɔːd/ n. 键盘kick /kɪk/ v.&n.踢kick sb off 开除某人He was really worried that his coach might kick him out of the team. kid /kɪd/ n.小孩；年轻人kill /kɪl/ v. 杀死，弄死kilo=kilogram /'k iːləʊ/ n. 千克kilometre /'kɪlə,miːtə/ n.(美kilometer) 千米，公里kind /kaɪnd/adj.善良的；友好的n. 种；类kind of 稍微；有点a kind ofmany kinds ofall kinds ofkindness /'kaɪn(d)nɪs/ n.仁慈；善良king /kɪŋ/ n. 国王kiss /kɪs/ n. 吻，亲吻v. 吻，接吻kitchen /'kɪtʃɪn/ n. 厨房kite /kaɪt/ n. 风筝fly a kite=fly kitesknee /niː/ n. 膝盖knife /naɪf/ n.(复knives)刀knock /nɒk/n. 敲，击，敲打v. 敲，打，击knock at/on 敲……knock into 撞上knock sth. down/off/over etc. 碰倒，撞倒The dog managed to knock over a table.knock off (sth.) 停止（工作）；下班I don’t knock off until six.What time do you knock off work?know /nəʊ/ v. (knew, known)知道，了解；认识；懂得be known for 以……闻名；以……出名well-known 著名的；众所周知的As far as I know, tea plants are grown on the sides of mountain.As we all know, pandas eat only bamboo.know about 了解know well 熟悉knowledge /'nɒlɪdʒ/ n. 知识，学问[U]Knowledge is power. 知识就是力量。
首字母为K和L的单词精讲-中考英语1600个单词用法精讲
考点： v.持续
The game lasted for 2 hours.
比赛持续了两个小时。
te
[leɪt]
考点： be late for… 迟到
adj.接近末期的；迟到的 adv.晚地；迟地
35. Ken was almost late for school. The bell rang right after he entered the classroom. （河北省）
[læb] [leɪk] ['læŋɡwɪdʒ] [lɑːdʒ] [lænd]
n.实验室 n.湖 n.语言 adj.大的；大量的 n.陆地；土地 v.着陆；登陆
dy
考点： 复数形式：ladies
['leɪdi]
n.女士；夫人
st
[lɑːst]
adj.最近的；最后的 adv.最后；最近 v.持续
可中爱考英的用语长法必颈精备讲鹿1-6K00L个单词
1. keep
[kiːp]
考点： keep--kept--kept
v.保持；保存；继续
1. keep
[kiːp]
v.保持；保存；继续
考点： keep doing sth.
一直做某事
9. Mr. Wu keeps __________ his students that the future belongs to the well-educated. （江苏-盐城）
A. quiet; quiet
B. quiet; quietly
C. quietly; quiet
D. quietly; quietly
1. keep
[kiːp]
v.保持；保存；继续
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英语基础知识复习-I\K字母包括的单词、词组、句型
J
1. jacket n.短上衣；茄克（衫）
2. January n.一月；元月
3. Japan n.日本
4. Japanese n. 日本人；日语 adj. 日本（人）的；日语的
5. jeans n.牛仔裤；斜纹布裤
a pair of jeans 一条牛仔裤
6. job n.工作；职业
7. join v.结合；加入；连接
Join one section of pipe to the next.
把一段管道与相邻的管道连接起来。
join sb. 加入、会面或相见。
Ask him to join us for lunch. 请他和我们一起吃午饭。
join sth. 参加（某组织）
He joined the Party last year. 他去年入的党。
join in sth. 参加（某活动）
近义词辨析：attend, join, take part in
attend 是指出席或参加会议、聚会、讲座等；
join是加入到某一组织、团体或人群中去，并成为其中的一员；
take part in 是参加到某项活动中。
Did you attend the meeting last Friday?
你参加上周五的会议了吗？
When did you join the club?
你什么时间加入的俱乐部？
All the students take part in the party.
所有的学生都参加了聚会。
8. joke n.笑话；笑料 v. 开玩笑
Don’t be angry. It’s just a joke. 别生气，这只不过是个玩笑。
I didn’t mean any harm. I was just joking. 我并没恶意，我不过开个玩笑。
play a joke on 开某人玩笑
It’s impolite to play a joke on others. 开别人玩笑是不礼貌的。
9. joy n.欢欣；高兴
10. juice n.（水果）汁，液；果汁
11. July n.七月
12. jump v.跳跃；跳动
13. June n.六月
14. just adj. 公正的；正义的 adv. 只是；仅仅；刚刚；恰好；刚要
just now 刚才
K
1. kangaroo n. 袋鼠
2. keep (kept, kept) v.保持；保存；留有；经营；遵守；饲养
keep on doing something 一直做某事
I shouted to him but he just keep on writing. 我向他喊话，可是他一直继续写字。
keep out 不许进入，抵挡在外
Those trees can keep out the strong wind. 那些树木可以抵御狂风。
keep away from 不靠近
keep a secret 保守秘密
keep a diary 记日记
keep+adj. 保持某种状态
Schools keep closed for about two months in summer. 暑期学校停课约两个月。
keep+n. 保存，保管
Could you keep these books for me, please? 你能替我保管这些书吗？
keep off 勿踏; 勿踩
近义词辨析：borrow/keep
borrow属瞬时动词，其动作不能延续，不能和表示时间段的状语连用；而keep可以跟时间段连用。
You can keep the book for three days.
这本书你可以借三天。
He borrowed the book three days ago.
他是三天前借的这本书。
3. key n.钥匙；关键；钥匙；键
4. keyboard n.键盘
5. kick v./n.踢；反冲
6. kid n.小孩；小山羊
I just want to speak to my ki d brother. It’s none of your business. 我只是想和我的弟弟通话，不关你的事。
7. kill v./n.杀死；扼杀
8. kilogram/kilo n.千克
9. kilometre n.千米；公里
10. kind n. 种类 adj. 和蔼的；善良的
11. king n.君主；国王
12. kiss n./v.吻；轻触
13. kitchen n.厨房；炊具
14. kite n.风筝
15. knee n.膝；膝部
16. knife (pl. knives) n.刀；匕首
17. knock v./n.敲；打
knock into 撞上
knock down 撞倒
knock at (on) the door 敲门
a knock at (on) the door 敲门
18. know（knew, known）v.了解；熟悉；知道；认识；懂得
be known for 因……而出名
He is known for his works. 他是因其作品而出名的。
be known as 作为……而出名
Lu Xun was known as a writer. 鲁迅作为作家很出名的。
know about 了解或知道某事物
let sb. know 让某人知道......
make oneself known to 对……作自我介绍
近义词辨析：know/know of
know 的意思是“知道、认识、熟悉”
I know his father very well. 我跟他的父亲非常熟悉。
know of 的意思是“知道情况、听说过”
I know of him, but I don’t know hi m.
我听说过他，但是我不认识他。
19. knowledge n.知识；知道。