快速做网站公司报价,浙江 网站备案,水泥网站营销方案怎么做,怎么做qq分享网站初一各科精品资料初中语文必须会背的180个文言文实词初中数学重点知识点分类总结部编版七年级语文上册文言文知识清单初中英语经典易错题集锦初中语文常用修辞方法详解#xff01;七年级上册这10篇优秀英语作文初中语文七年级课内成语解释汇编初一英语单词分类表数学错题集制作… 初一各科精品资料初中语文必须会背的180个文言文实词初中数学重点知识点分类总结部编版七年级语文上册文言文知识清单初中英语经典易错题集锦初中语文常用修辞方法详解七年级上册这10篇优秀英语作文初中语文七年级课内成语解释汇编初一英语单词分类表数学错题集制作方法 一. 动词be(am,is,are)的用法 be动词包括“am”, “is”, “are”三种形式。 ①第一人称单数(I)配合am来用。句型解析析I am… 例句I am Snoopy. I am ten years old. I am a student. I am a boy. ②第二人称(You)配合are使用。句型解析You are… 例句You are my good friend. You are a good teacher. You are beautiful ③第三人称单数(He or She or It)配合is使用。句型解析She(He, It) is …… 例句She is a good girl. She is so tall. She is short. ④人称复数 (we /you/they)配合are使用。句型解析We (You, They) are …… 例句We are in Class 5,Grade 7. They are my friends. You are good students. 用法口诀我(I)用am, 你(you)用areis跟着他(he)她(she)它(it)。单数名词用is复数名词全用are。变否定更容易be后not加上去。变疑问往前提句末问号莫丢弃。还有一条须注意句首大写莫忘记。 对应练习 一. 用括号中适当的词填空。 1. I ________(am, are, is) from Australia. 2. She _______ (am, are, is) a student. 3. Jane and Tom _________(am, is, are) my friends. 4. My parents _______ (am, is, are) very busy every day. 5. _______ (Are, Is, Do, Does) there a Chinese school in New York? 6. _______ (Be, Are, Were, Was) they excited when he heard the news? 7. There _____ (be) some glasses on it. 8. If he _____ (be) free tomorrow, he will go with us. 二、人称代词 表示“我”、“你”、“他”、“她”、“它”、“我们”、“你们”、“他们”的词叫做人称代词。人称代词有人称、数和格的变化见下表 人称单数复数主格宾格主格宾格第一人称Imeweus第二人称youyouyouyou第三人称hehimtheythemsheheritit 人称代词主格作主语表示谁怎么样了、干什么了。 I am a teacher. You are student. He is a student, too. We/You/They are students. 人称代词宾格作宾语表示动作行为的对象。 Give it to me. Let’s go (let’s let us) 三、物主代词 表示所有关系的代词叫做物主代词也可叫做代词所有格。物主代词分形容词性物主代词和名词性物主代词二种其人称和数的变化见下表。 数人称类别单数复数第一人称第二人称第三人称第一人称第二人称第三人称形容词性物主代词myyourhisheritsouryourtheir名词性物主代词mineyourshishersitsoursyourstheirs汉语我的你的他的她的它的我们的你们的他(她、它)们的 形容词性物主代词(my/your/his/her/its/our/their)名词 而名词性物主代词则相当于形容词性物主代词名词,故其后不必加名词。如 Is this your book? No,it isn’t it’s hers(her book) This pen is mine. 代词练习 一、用所给代词的正确形式填空。 1. These are ______ ( he ) brothers. 2. That is _______( she ) sister. 3. Lily is _______ ( Lucy ) sister. 4. Tom, this is _____ ( me ) cousin, Mary. 5. Now _____________(her parent) are in America. 6. Those __________ ( child ) are _____ ( I ) father’s students. 7. Do you know ______ ( it ) name? 8. Mike and Tom __________ ( be ) friends. 9. Thanks for helping ________( I ). 10. ______(Ann安)mother is ______(we) teacher. 二、用适当的代词填空1We like ________ (he, his , him) very much.2Is this guitar ________ (you, your, yours)?3________(She, Her, Hers) name is Li Li.4Father bought a desk for ________ (I, my, me, mine).5________ (It, Its, Its) is very cold today.6Is this your book, Mike? Yes ,________(we, you, they )are.7Are you and Tom classmates? Yes, ________(we, you ,they )are.8Each of the students ________( have, has) a pen pal.9He has a dog. I want to have ________(it, one ),too.10Her parents are ________ (both, all ,either )teachers.11The text is easy for you .There are ________( few, a few ,little,a little) new words in it.12I want ________( some, any) bananas. Give me these big ________(one, ones). 四、陈述句 1、 概念说明一个事实或是陈述说话人的看法的句子句末用句号。 2、 分类陈述句根据其语法结构可大体分为“主语谓语”和“主语连系动词表语”两种而从语气的角度分又可分为肯定陈述句和否定陈述句 (1)“主语谓语”结构 ①肯定陈述句 I like that book.我喜欢那本书。(陈述一个事实) I really agree.我确实同意。(陈述一个观点) ②否定陈述句 I did not buy the TV.我没有买那个电视。(陈述一个事实) (2)主语连系动词表语结构 ①肯定陈述名 The film is boring . 这部电影没意思。(陈述观点) ②否定陈述句 Smoking is not good for your health.抽烟对你的健康没有好处。(陈述一个事实) 3、 陈述句的否定结构 陈述句的否定式主要用两种结构来表达 (1)句子的谓语动词为be , have 或者谓语动词有助动词、情态动词时其否定结构为 主语谓语动词/助动词/情态动词 not 其他成分 I am not a teacher. 我不是老师。 We have not (havent) any books on animals. 我们没有任何有关动物方面的书。 The children are not (arent) playing in the playground. 孩子们没在操场上玩。 He will not (wont) come. 他不会来。 We must not (mustnt) forget the past. 我们不能忘记过去。 It could not (couldnt) be lost. 它不可能丢的。 (2) 当句子的谓语动词是do (即行为动词)而且没有助动词或情态动词时其否定结构为主语do (does,did) not 动词原形 其他成分 You do not (dont) come here every day . 你没有每天都来这里。 He does not (doesnt) teach this class . 他不教这个班。 They did not(didnt) watch TV last night . 昨晚他们没看电视。 注意陈述句的语调一般用降调。但在表示疑问的语气时用升调在书面上要用问号来表示。 You really want to go to Hong Kong ? 你真的想去香港吗 这句话表示的是一种疑问只不过是通过陈述的语序和疑问的语气来表达的 五、疑问句 疑问句是用来提出疑问的句子句末用问号“”。常考的疑问句有四类即一般疑问句、特殊疑问句、选择疑问句、反意疑问句。 (1)一般疑问句 一般疑问句通常需要用yes 或no 来回答所以又叫做“是非疑问句”。在读这种句子时 要用升调。一般疑问句主要有以下几种类型 1、“be 主语 表语”结构 — Are you sleepy ? 你困了吗 — Yes, I am . 是的我困了。 2、“情态动词 主语言 行为动词(或be)”结构 — May/Can I use the telephone? 我能用这部电话吗 — Yes, you can. 是的可以。 3、“助动词(do, does, did) 主语 行为动词”结构 — Do you like swimming in summer? 你喜欢夏天游泳吗 — No, I dont . 不我不喜欢。 难点提示 回答否定性一般疑问句时要在Yes 后面用肯定结构表示肯定在No 后面用否定结构表示否定。注意在说法上正好与汉语习惯相反。诀窍是在回答的时候只要把它当成没有加否定形式的普通一般疑问句看待就可以了。注意下面例句的回答和它的意思。 — Is he not your elder brother? 他不是你的哥哥吗 —Yes, he is . 不他是(我的哥哥)。No, he is not. 是的他不是(我的哥哥)。 — Isnt she very clever? 她难道不是很聪明吗 — Yes, she is. 不她很聪明。— No, she is not . 是她不聪明。 (2)特殊疑问句 一、特殊疑问句是用来提出来特定问题的疑问句要求听到问题的人针对特定情况来做具体的回答不能像一般疑问句一样简单地用Yes 或No 来回答特殊疑问句要用降调来读。 二、特殊疑问句的结构 特殊疑问词 一般疑问句 Who do English homework in the evening?谁晚上做英语家庭作业 What do you do in the evening?你晚上做什么 What homework do you do in the evening?你晚上做什么家庭作业 When do you do English homework?你什么时候做英语家庭作业 三、注意 对人提问时who“谁” 对所属(谁的)提问用whose“谁的” 对哪一个提问用which“哪一个” 对时间提问用when“什么时候”或what time“几点” 对物体提问用what“什么” 对地点提问用where“哪里” 对原因提问用why“为什么” 对方式提问用how“怎么样” 对数量提问用how many“多少”(用于可数名词复数)或how much“多少”(用于不可数名词) 四、难点提示 1、 以why开头的特殊疑问句否定形式常用于表示建议、请求等。Why dont you have a try? 你为什么不试试呢 2、 特殊疑问句常用到一些缩略形式在平时学习中要注意习惯这些用法。 I dont want to go there. How about you? 我不想去那儿你呢 But what else? 可是还有什么呢 1、把下列句子变成否定句 1. I am listening to music. ___________ 2. Mike is a student. ______________________ 3.Sarah can clean the classroom. _______________ 4. They are in the zoo. ____________________ 5. There are some flowers in the vase.____________ 6. This is my sister. _________________________ 7. We are sweeping the floor._____________________ 8. We need some masks. _________________________ 9. They like making the puppet. ___________________ 10. Su Hai and Su Yang live in a new house. _____________________________ 11. I put a book on my head. _________________________________ 12. They sing “In the classroom” together. __________________________________ 13. We play basketball on Sundays. ________________________________ 14. Tom likes listening to music ______________________________ 2、把下列句子变成一般疑问句 1. I am listening to music. __________ 2. Mike is a student. ___________________ 3. Sarah can clean the classroom._______________ 4. They are in the zoo. _______________________ 5. There are some flowers in the vase.___________ 6. This is my sister. ________________________ 7. We are sweeping the floor._____________________ 8. We need some masks. ______________________ 9. They like making the puppet. _______________ 10. Su Hai and Su Yang live in a new house. _________________________________________________ 11. I put a book on my head. _________________________________________________ 12. They sing “In the classroom” together. _______________________________________________ 13. We play basketball on Sundays. _________________________________________________ 14. Tom likes listening to music ____________________________________________ 六have作实义动词 1.表示“有”的意思 Look, I have wings, just like you. He had fair hair and blue eyes. 〔注1〕其否定和疑问形式变化在美国通常用助动词do。 〔注2〕在英国口语中常用have got代替have. Look, can’t you see Ive got teeth, too, I havent got any jewelry. 2.have和一些其他名词连用表示 (1)一种活动。We have no classes on Sunday.(上课)they’re going to have a volleyball match.(举行比赛) Are we going to have a meeting this week?(开会)We are going to have a talk this afternoon.(听报告) (2)患病。 I have got a headache. I have a bad cold. (3)发生的情况。 Ive had so many falls that Im black and blue all over.(跌跤) (4)生育。 The queen ant may have tens of thousands of babies in one summer. 3.和一与动词同形的名词连用表示一个动作(havea由动词转化和名词)Are you going to have a swim. I have a long talk with the teacher. 4.have on sth.或have sth. on表示“穿着”、“戴着”(to be wearing) I noticed he had on bedroom slippers. At the ball Motile had a diamond necklace on. 5.表示“吃”、“喝” I wanted to have a cup of tea and some eggs. Does she have lunch at home? 6.组成复合结构即“have宾语宾语补足语” (1)不加to的动词不定式作宾语补足语(have sb. do sth.)表示让、叫某人做某事。 The soldier had him stand with his back to his father. 〔注〕否定结构表示“不能让…”或“从未有人…”. We wont have you blame it on others. She had never had anybody speak to her that way before. (2)现在分词作宾语补足语(have sb.(sth.)doing)表示让(使)某人做某事。 …the two men had their lights burning all night long…. (3)过去分词作宾语补足语(have sb. (sth.)done)表示 ①使(让请)别人作某事表示的动作是别人做的。 Emperor Qin Shi Huang had all the walls joined up. …he should have new clothes made of this splendid cloth for the coming great procession. ②遭遇到某事。 Workers in some industries have their hearing harmed by the noise of the machine. 七、英语名词单数变复数的规则 一、绝大多数的可数名词的复数形式是在该词末尾加上后辍-s。 读音变化结尾是清辅音读[s]结尾是浊辅音或元音读[z]。 例friend→friends; cat→cats; style→styles; sport→sports; piece→pieces 二、凡是以s、z、x、ch、sh结尾的词在该词末尾加上后辍-es构成复数。 读音变化统一加读[iz]。 例bus→buses; quiz→quizzes; fox→foxes; match→matches; flash→flashes 三、以辅音字母y结尾的名词将y改变为i再加-es。 读音变化加读[z]。 例candy→candies; daisy→daisies; fairy→fairies; lady→ladies; story→stories 四、以-o结尾的名词如果不是外来词或缩写就加-es否则加-s构成复数。 读音变化加读[z]。 例tomato→tomatoes; potato→potatoes; torpedo→torpedoes; bingo→bingoes 反例silo→silos; piano→pianos(外来词); photo→photos; macro→macros(缩写词) 五、以-f或-fe结尾的名词多为将-f或-fe改变为-ves但有例外。 读音变化尾音[f]改读[vz]。 例knife→knives; life→lives; leaf→leaves; staff→staves; scarf→scarves 反例roof→roofs 六、以-us结尾的名词(多为外来词)通常将-us改变为-i构成复数。 读音变化尾音[Es]改读[ai]其中[kEs]要改读为[sai][gEs]要改读为[dVai]。 例fungus→fungi; abacus→abaci; focus→foci; cactus→cacti; cestus→cesti 七、以-is结尾的名词通常将-is改变为-es。 读音变化尾音[is]改读[i:z]。 例axis→axes; basis→bases; naris→nares; hypothesis→hypotheses; restis→restes 八、以-ix结尾的名词通常将-ix改变为-ices但有例外。 读音变化尾音[iks]改读[isi:z]。 例matrix→matrices; directrix→directrices; calix→calices; appendix→appendices 反例affix→affixes 九、以-um结尾的名词将-um改变为-a。 读音变化去掉鼻尾音。 例forum→fora; stadium→stadia; aquarium→aquaria; datum→data; vacuum→vacua 十、以-a结尾的名词在该词末尾加上后辍-e。 读音变化尾音[E]改读[i:]。 例larva→larvae; formula→formulae; ala→alae; media→mediae; hydra→hydrae 十一、部分单词的复数形式不变。 读音变化保持原音。 例fish→fish; sheep→sheep; cattle→cattle; deer→deer; salmon→salmon 十二、极少数单词其复数形式没有任何规律。 读音变化没有规律。 例man→men; woman→women; child→children; person→people; ox→oxen 十三、一些单数词得加en才能变成复数词 例ox→oxen; child→children; brother→brethren 十四、一些单数词得改头换面一番,才能变成复数词 例analysis→analyses分析; basis→bases基础; datum→data数据; foot→feet; formula→formulae/formulas公式; goose→geese; louse→lice虱子; man→men mouse→mice; medium→media/mediums媒介; memorandum→memoranda/memorandums备忘录; parenthesis→parentheses 圆括号; phenomenon→phenomena现象; radius→radii 半径 tooth→teeth; woman→women 十五、有些名词是单数、复数不分的 例deer; fish; cannon; sheep; salmon 鲑鱼; trout 鳟鱼 十六、一些名词虽分单数、复数但出现次数多的总是单数词 例abscence; clothing; film; help; furniture家具; machinery机械; news; scenery风景; sugar; traffic交通 十七、另一些名词则以复数词出现的机会较多 例bellows风箱; clothes; police; shorts短裤; scissors剪刀; spectacles眼镜; shears大剪刀 trousers长裤; wages工资 十八、compound nouns这类复数词是以主要的名词来表示 例daughter-in-law→daughters-in-law 媳妇; father-in-law→fathers-in-law岳父 man-of-war→men-of-war兵舰; maid-servant→maid-servants step-son→step-sons晚子; son-in-law→sons-in-law 十九、若表达具体数目要借助数量词 例pair(对双); suit(套); a pair of glasses; two pairs of trousers 二十、另外还有一些名词其复数形式有时可表示特别意思 例goods货物waters水域fishes(各种)鱼 二十一、除人民币元、角、分外美元、英镑、法郎等都有复数形式。 例a dollar, two dollars; a meter, two meters 以O结尾的词许多加es构成复数特别是一些常用词如heroes,potatoes,tomatoes,echoes,tornadoes,torpedoes,dominoes,vetoes,mosquitoes,Negroes,mangoes,buffaloes,volcanoes 但下面几类词只加s 1.以“元音o”或“oo”结尾词如:videos,radios,studios,folios 2.一些外来词特别是音乐方面的如pianos,solos,concertos,tobaccos,mottos,cellos 3.一些缩写词和专有名词如kilos,photos,memos,micros,Eskimos,Filipnos 有个别词加两种词尾都可以如archipelago(e)s,halo(e)s,cargoes(英)cargos(美) 名词由单数变成复数的练习 写出下列名词复数 leaf______ puppy_______ box_______ knife_______ fly______ fox______ bus______ bench_____ brush_____ kiss______ church______ dish_____ ruler______ peach________ glass_____ pencil________ boy______ zoo______ man______ roof_______ sheep_______ knife______ lady______ key______ story______ watch______ bamboo______ city______ family______ day_____ apple_______ eraser______ speech______ thief______ mouse______ fish_____ goose____ people ______ ox_____ Chinese _______ deer _______ foot______ child_______ tooth_______ guy________ hero_______ spy______ boss_____ monkey______ city ______ goat ______ radio ________ horse ______ dog ______ 用所给的单词的复数的正确形式填空 1There are so many________(wolf)in the forest. 2There are three ______(chair) in the classroom. 3These _______(tomato) are red. 4______(hero) are great. 5My brother looks after two ______(baby) 6There are some ______(deer) eating the grass. 7My father likes to eat _______(potato). 8Chinese ______(people)like to eat noodles. 9I have a lot of ______(toy) in my bedroom. 10I help my mother wash ______(dish) in the kitchen. 11I have two ______(pencil-box). 12There are some ______(bus)in the street. 13Peter has eight _____(foot). 14Linda has three _______(tooth). 15There are some ______(child) in the garden. 16Michael likes the ______(mouse). 17There are some ______(goose)in the river. 18My uncle and father are _____(man). 19Tom and King are _____(boy). 20Linda has three ______(tooth). 八、现在进行时 1,表示说话时正在进行或发生的动作。 Please dont make so much noise. Im writing a composition. 不要吵闹。我正在写作文。 Lets set off. It isn’t raining now. 咱们出发吧。现在不下雨了。 这类情况常与now现在at the present现在at the moment现在today今天this week这个星期this year今年等时间状语连用。有时通过上下文可以判断出应采用何种时态如 Its four oclock in the afternoon. The children are playing football on the sports ground. 现在是下午四点。孩子们在操场上踢足球。 Hurry up! We are all waiting for you. 快点我们大家都等着你。 Look! They are reading over there under the tree. 看他们在那边的树底下看书。 Listen! She is singing in the room. 听她在房间里唱歌。 Where is Kate? She is reading in the room. 凯特在哪里她在房间里看书。 Why are you crying? Is something wrong? 为什么哭呢有什么不对 2,表示现阶段正在进行而说话时不一定在进行的动作。 We are working in a factory these days. 这几天我们在一家工厂工作。 They are compiling a dictionary. 他们在编一本词典。 这类情况常与today今天this week这个星期this evening今天晚上these days现在、目前等时间状语连用。 3,在口语中表示主语计划将要作的动作。 They are leaving for New York tomorrow. 明天他们将要动身前往纽约。 Is your brother departing soon? 你的兄弟很快就要启程吗 这类情况常与come来go去 leave离开depart离开arrive到达stay逗留start开始等动词连用。所用的动词必须是动作而不是状态主语必须是人。 4,现在进行时与always等副词连用时带有感情色彩。 Hes always quarrelling with others. 他老喜欢跟别人吵架。 She is constantly worrying about her sons health. 她不停地为她儿子的健康担心着。 The boy is forever asking questions. 那个男孩老是问问题。 这类情况常与always总是usually通常continually不断的constantly经常的forever永远、老是等副词连用。 5,有的现在进行时句子和一般现在时同义。用现在进行时表示问者的关切心情。 How are you feeling today? (How do you feel today?)你今天感觉如何 I am looking (look)forward to your next visit. 我盼望你下次再来。 Why are you looking(do you look)so sad? 为什么你看起来这么愁眉苦脸的样子呢 6,有的动词用于现在进行时表示“逐渐”的含义。此种用法除了偶尔和now连用外一般不和其他时间副词连用的。 Our study is becoming more interesting. 我们的学习变得越来越有趣了。 The leaves are turning red. 树叶渐渐地变红了。 The war is ending. 战争接近尾声了。 Wait a moment; I am finishing my supper. 等一会儿我的晚饭就要吃完了。 适合于此种用法的动词有bet/grow/become/turn/run/go变成begin开始forget忘记remember记得die死finish完成find发现rise增强等. 7,“be”动词的现在进行时。“be”动词用于现在进行时表示说话者认为是短暂的、和平常不一样的、甚至是伪装的。 He is being foolish. 他在装傻。 He is being honest. 他表现得特别老实。 She is being rude. 她故意表现粗鲁。 I cant understand why he is being so selfish.我不明白此时他为何如此自私。 适合于此种用法的有foolish愚蠢的nice好的kind好心的careful细心的patient耐心的lazy懒惰的silly傻的rude粗鲁的polite礼貌的impolite无礼的等表示人的特性、性格的形容词。(“be”动词用于现在进行时表示人的行为纯粹表示心理或生理的状态而不带有行动时或主语不是人时“be”动词不能用于现在进行时)如 I am happy.(表语是纯粹的心理状态不可用am being) 我很快乐。 Hes tired.(表语是纯粹的生理状态不可用is being) 他很疲倦。 Its hot today.(主语不是人不可用is being) 今天很热。 常和现在进行时连用的时间状语 用法实例 (1)当句子中有now时常表示动作正在进行这时要用现在进行时。如They are playing basketball now.现在他们正在打篮球。 (2)以look, listen开头的句子提示我们动作正进行这时要用现在进行时。如ListenShe is singing an English song.听她正在唱英语歌。 (3)表示当前一段时间或现阶段正在进行的动作且此时有this week, these days等时间状语这时常用现在进行时。如We are making model planes these days.这些天我们在做飞机模型。 (4)描述图片中的人物的动作也为了表达更生动。此时也常用现在进行时。如Look at the picture. The children are flying kites in the park.看这幅图那些孩子正在公园放风筝。 一般结构 肯定句式主语be( am, is, are)现在分词其它. 否定句式主语be(am, is, are) not 现在分词其它. 一般疑问句Be(am, is, are) 主语现在分词其它 特殊疑问句疑问词be(am, is, are)主语现在分词其它 对一般疑问句作答肯定回答yes,主语be,否定回答no,主语be not 对现在进行时的特殊疑问句的回答它不可以用Yes或No直接作答要根据实际情况回答。 EgThey are working these days. He is buying a bike. They aren’t working these days. He isn’t buying a bike. Are they working these days? Is he buying a bike? What are they doing these days? What is he doing ? 现在分词的变法有 1、一般在动词词尾加上-ing Jump——jumping go——going pushing——pushing play——playing 2、以不发音字母e结尾的动词先去e再加-ing. Take——takeing leave——leaving write——writing have——having 3、.以重读闭音节结尾末尾只有一个辅音字母的词它前面是单个元音字母时要先将词尾的辅音字母双写再加上-ing. Cut—cutting put—putting stop—stopping fit—fitting begin—beginning forget—forgetting 4.以ie结尾的词将ie变为y再加ing Lie—lying 练习 尽管现在进行时比较简单但在做题过程中也常会犯一些错误常见的错误有如下几种 1、 Look! He _____their mother do the housework. A. is helping B. are help C. is help D.is helpping 2 、_____are the boys doing ? They are singing in the room. A .Who B .How C.What D.Where 3、 Don’t talk here. My mother _____. A. is sleeping B .are sleeping C. sleeping D .sleep 4 、Danny ______. Don’t call him. A. is writeing B .is writing C.writing D .writes 5 、–When_____he_____back? – Sorry, I don’t know. A. does,come B.are coming C.is come D.is coming 6、 It’s ten o’clock. My mother _____(lie)in bed. 7、 What____he _____(mend)? 8、 We _____(play)games now. 9、 What ____you____(do) thesse days? 10、 ____he ___(clean) the classroom? 11、 Who____(sing)in the next room? 12、The girl____(like)wearing a sweater. Look! She ____(wear)a red sweater today. 答案1 is lying 2 is mending 3 are playing 4 are doing 5 Is cleaning 6 is singing 7 likes ; is wearing 注意 把动词变成现在分词形式易出错 例1、They are swiming.(swim) 2 、Jenny is plaiing(play)football. 答案1.swimming 2 .playing 丢掉be动词或忘记把动词变成现在分词 例1、 Look,two children flying.(fly) a kite in the park. 2 、Li Mingisn’t read ( not read) a book in bed now. 答案1 are flying 2 isn’t reading 解析:现在进行时肯定句的结构规律为: “be现在分词,缺一不可”。这一点必须牢记。 对动词或动词词组提问时丢掉doing 例1 、The students are singing in the room.(对划线部分提问) What are the students in the room?答案What are the students doing in the room? 解析:现在进行时态中对动作提问可记住此句式“What be 主语doing其它?” 现在进行时态的选择疑问句中易忽视or后用现在分词形式 例孩子们在跑还是在跳 Are the children running or jump?答案Are the children running or jumping? 解析: or连接的是两个并列成分动词形式须一致。
