例子He lent a book to me last week=He lent me a book last week

have a teacher
例子一
Alexander the Great,one of the greatest man since the dawn of human civilization,would never achieve his great success that he built the empire across 3 continents if he had not learnt from his great teacher,Aritotle.Aristotle,one of the great phylosopher in greek,not only imparted Alexander a large amount of knowledge including Philosophy,mathmatics,literature,but also taught him how to be a man with great stength and bravity.再做简单的论证就可以.
例子二
Helen Keller,who was bot blind and deaf since a grave diease in her childhood,became a great woman in human history with her kindness and intelligence.All her achievement could never separated from the effrots of her tutor,Salliven,a woman with both great intelligence and reponsibility.Salliven helpt young helen go throung the most tough time in her childhood,taught her how to speak word by word,encouraged her to go to the Camparige school and was always with her when Helen made speeches all over ther world to aspire the disability.It was Salliven who inspired and directed Helen in her long way to success.再简单论述一下就Okay~
hope it can help you!

There is a watch in the box
There are two cows in the picture
There are some birds in the tree
There is a cat under the chai

直接利用热能：
烧柴取暖
烧煤（气）做饭
间接利用热能：
烧煤（油）发电：化学能→热能→机械能→电能
汽车：化学能→热能→机械能

i want to go

were some flowers

No smoking-You can't smoke here.
No parking-You can't park here.
No fishing-You can't fish here.

将以上两句合并后的结果如下：
Frank is a fine basketball player,as his father was.
注：此处用"was”是因为2句的"Before him”,表示曾经.
译为：弗兰克是个优秀的足球运动员,就跟他爸爸以前一样.

1.So + be/助动词/情牵动词/主语
　　前面陈述的肯定情况也适于另一人(物)时,常用到这种倒装结构,表示"另一人(物)也如此."前面陈述的否定情况也适于另一人(物)时,常用"Neither/ Nor + be/助动词/情态动词+主语."这种倒装结构.
　　注意："So+主语+be/助动词/情态动词."这一句型常用于表示赞同,进一步肯定对方的看法,表示"的确如此.""是呀."
　　2.Turn right/left at the first/second/…crossing
　　这一指路的句型意为"在第一/二/……个十字路口向右/左拐."相当于Take the first /second/…turning on theright/left.
　　3.It takes sb.some time to do sth
　　此句型表示"干某事花了某人一段时间."其中的it是形式主语,后面的动词不定式(短语)才是真正的主语.
　　4.…think/find + it + adj.+ to do sth
　　此句型中的it是形式宾语,不可用其它代词替代,形容词作宾语的补足语,后面的动词不定式(短语)才是真正的宾语.
　　5.What's wrong with…?
　　此句型相当于What''s the matter/ trouble with…?后跟某物作宾语时,意为"某物出什么毛病了?"后跟某人作宾语时,意为"某人怎么了?"
　　6.too…to…
　　在so…that…复合句中,that后的句子是否定句时,常与简单句too…to…(太……而不能……)进行句型转换.
　　在so…that…复合句中,that后的句子是肯定句时,常与简单句…enough to…进行句型转换.
　　7.Sorry to hear that
　　全句应为I''m sorry to hear that.意为"听到此事我很难过(遗憾)."常用于对别人的不幸表示同情、遗憾之意.
　　8.There be 结构
　　a.这是英语中常见的一种结构,表示“某地有某物”其含义为“存在有”.
　　eg.There are twenty girls in our class.have也解释为“有”但是与there be有区别,它的含义是“所有,属有”,其主语为某人.eg.I have a nice watch.
　　b.There be 结构中的be动词要和后面所跟名词保持一致.
　　c.There is a river near our school.
　　否：There is not a river near our school.
　　问：Is there a river near our school.
　　回答：Yes,there is.No,there isn't.

建筑工人或者木匠用绳子绑住重物,可以观察是否垂直

…… 还是你
美丽的花朵,你左右摇摆,是要给我跳一段优美的舞蹈吗?顽强的小草,你穿着一身绿衣服,是要和我比谁的衣服更漂亮吗?可爱的蜗牛,你背着小房子慢悠悠地爬动,是在观赏风景吧!高大的柳树,你长发飘飘,多么像一位漂亮的小姑娘.

Mike is playing football now.
They are playing chess now.
He is doing an experiment now.
The lions are fighting in the woods now.
是这样吗,改成现在进行时?

一鸣惊人
邹忌讽齐王纳谏
烛之武退秦师
任座直言

The boys aren`t playing football.
He didn`t call me yesterday .

问题就是看y和u是不是相同size的
建议在leng=length(u);
后边加一行
y = zeros(size(u));
再试试看

A great deal of evidence indicates that our natural environment is undergoing drastic changes.
注释:
这里的"例子",未必就是examples,而是evidence,即证据,或facts,即事实.
"急剧变化":drastic changes
用了这个短语做宾语,就要用动词undergo来搭配:is undergoing drastic changes
诚意地指出:
一楼与三楼的主语the natural environment为第三人称单数,相应的谓语动词应为changes,而不是change; 此外,rapid是形容词,不能修饰动词change,应该用rapidly.准是疏忽了.

Two rivers:the Yangtze River and the Amazon River The Yangtze River is almost as long as the Amazon River.The Amazon is longer than the Yangtze,but the Yangtze River is the longest river in China.
第一部分Two cities:
Beijing city and Guangzhou（北京和广州）
Beijing is almost as big as Guangzhou.
Guangzhou is bigger than Beijing

第二部分Two animals:
The horse and the tiger（马和老虎）
The horse is almost as fast as the tiger
The tiger is faster than the horse.


以上纯手打,希望可以被采纳,应该是全对的.

are you interested in reading?
Yes, I am interested in reading.
No, I'm interested in singing.
do you enjoy playing basketball?
Yes. I enjoy playing basketball.
No, I enjoy playing soccer.
is there a toy shop near your home?
Yes, there is a toy shop near my home.
No, there is a bicycle shop near my home.
are these your stamps?
Yes, these are my stamps.
No, these are my sister's stamps.

雷达和蝙蝠,飞机和蜻蜓,

{.1} in the end 在内部的后面
{.}1 at the end of
by the end of 是时间上的末尾

I want what you have.最简单的例子,我想要你有的.
其中,what you have是宾语从句,what作从句的宾语.
或者在明显一点,I know what you should do.我知道你应该做什么.
其中,what you should do是宾语从句,what作从句的宾语,若是原来的特殊疑问句,就为What should you do?这个是不是你想问的?
有什么不明白的还可以问.没关系的.

1,Did the children clean the classrooms?
No,they didn't clean the classrooms.
But they cleaned the labs.
2,Is the new bedroom comfortable?
No,it isn't comfortable.
But the old bedroom is comfortable.
3,was the living-room clean and tidy?
No,it wasn't clean and tidy.
But it was messy.
4,Does Joan look beautiful?
No,he doesn't look beautiful.
But,Joan's sister looks beautiful.
5,Is the study larger than the kitchen?
No,it isn't larger than the kitchen.
But,it is larger than the toilet.

（1）A:did the children clean the labs
B:no,the children didn't clean the labs.
but the children cleaned the classrooms.
(2)A ：is the old bedroom comfortable?
B no ,the old bedroom isn't comfortable
but the neew bedroom is comfortable.
(3)A was the living room messy?
B no ,the living room wasn't messy
but the living room was clean and tidy.
(4) A Does joan's sister look beautiful?
B no,joan's sister doesn't look beautiful,but joan looks beautiful.
(5)A is the study larger than the toilet?
B:no ,the study isn't larger than the toilet.But the study is larger than the kitchen.
大小写,你自己改吧.

　　He opened the door
他打开了门

‍‍We found the key
我们发现了钥匙

examples

she's fluent in French and German.She also speaks a little Italian.她的法语和德语很流利,她还会说一点意大利语.
Husband and Wife were similarly successful in their chosen careers.夫妇在各自选择的事业上都很成功.

sp杂化：由原子的一个ns和一个np轨道杂化形成两个sp杂化轨道,每个sp杂化轨道各含有1/2s成分和1/2p成分,两个轨道的伸展方向恰好相反,互成180度夹角,形成σ键.eg.BeCl2、CO2、CS2、C2H2
sp2杂化：原子以一个ns和两个np轨道杂化,形成三个能量相同sp2杂化轨道,每个杂化轨道各含1/3s成分和2/3p成分.三个杂化轨道间的夹角为120度.eg.C2H4
sp3杂化：由一个ns和三个np轨道杂化形成四个能量等同的sp3杂化轨道.每个sp3轨道都含有1/4s成分和3/4p成分.eg.CH4、NH3

第1和第3个字是名词,第2和第4个字是来形容那两个名词的.
山青水秀,草长莺飞,鸡飞蛋打,
秋高气爽,风和日丽,水清木华,
老妪衰翁,鹤发童颜,情闲意定,
月朗星稀,夜深人静,鸟宿花眠,
才子佳人,瓜田李下,眉来眼去.
以后有问题找我哦!

中秋佳节：今夜月明人尽望,不知秋思落谁家?——王建的《十五夜望月》
学校餐厅：谁知盘中餐,粒粒皆辛苦.——李绅《悯农》
庐山瀑布：飞流直下三千尺,疑是银河落九天.——李白《望庐山瀑布》

1.I travel to london every day, as do most of the people who live in this village

Model:He does some reading in the evening.
He doesn't do any reading in the evening.
(1)The boys are playing football.
________The boys aren't playing football_______________
(2)The pupils can swim.
____The pupils can't swim.
____________________
(3)Mary has some goldfish.
____Mary doesn;t have any goldfish.
____________________
(4)The farmers were very busy.
____The farmers weren't very busy____________________
(5)He called me yesterday.
____He didn't call me yesterday____________________
(6)Mr Brown was ill.
__Mr Brown wasn't ill______________________

I travel to london every day,as do most of the people who live in this village.

伴随状语是指状语从句的动作伴随主句发生,它的特点是：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.
例如：
①He sat in the armchair,reading a newspaper. 他坐在扶手椅里读报.
②All night long he lay awake,thinking of the problem. 他整夜躺在床上睡不着,思考着那个问题.
伴随状语的判断
The dog entered the room, following his master.一般在分词短语 （现在分词表主动 过去表被动）前有逗号的是伴随状语.
伴随状语出现的条件
由一个主语发出两个动作或同一个主语处于两种状态, 或 同一个主语发出一个动作时又伴随有某一种状态.
伴随状语的逻辑主语
一般情况下必须是全句的生语,伴随状语与谓语动词所表示的动作或状态是同时发生的.
伴随状语可以有以下几种表示方法：
一、使用分词形式 The dog entered the room, following his master(这条狗跟着主人进了屋). The master entered the room, followed by his dog(主人进了屋,后面跟着 他的狗).
二、用 with 复合结构 The little girls were playing with snow with their hands frozen red(小女孩 们在玩雪,手都冻红了). The workers went out of work, talking and laughing all the way(工人们下 班了,一路有说有笑).
三、用独立主格结构 Last year I came here by climbing over the wall, sword in hand. The little boy goes to school, the little dog accompanying him every day(这小孩每天去上学,那条小狗陪伴着他).
四、用形容词 Crusoe went home, full of fear(克鲁索满怀恐惧地回家). Confident of the victory the players are fighting hard(运动员们对比赛夺胜 满怀信心奋力拼搏). The match will be broadcast live(这场比赛将作实况转播). He left home young and came back old(他少小离家老大回).
五、用名词 He went away a beggar but retuned a millionaire(他讨吃要饭离家,腰缠 万贯回归). He who had been twice prime minister of the country, died civilian(他曾两 度出任这个国家的总理,而死的时候却是一个平民).
六、用介词短语 The girl came back to her mother in tears.(这女孩眼泪汪汪地回到母亲身 边). How can you go to the wedding party in rags(你怎能衣衫褴褛地去参加婚 宴)? I went home out of breath(我上气不接下气地回家).
with 复合结构做伴随状语：
由“with ＋宾语＋宾补”构成的复合结构,在句中可作状语,表示伴 随.这一结构中的宾语补足语可由现在分词、过去分词、形容词、副 词或介词短语等来充当.
例如： 1．With production up by 60％,the company has had another excellent year．产量增涨了 60％,公司又是一个盈利年. 2．He soon fell asleep with the candle still burning．蜡烛还亮着,他很 快就睡着了. 3． She sat there alone with her eyes filled with tears． 他独自一人坐在那 儿,眼里充满了泪水.

独立主格结构做伴随状语：
独立主格结构是由一个名词或代词（作为该短语结构的逻辑主语） , 加上一个分词、形容词、副词、动词不定式或介词短语（作为该短语 结构的逻辑谓语）构成.该从属结构主要起状语作用,相当于一个状 语从句.故独立主格结构也可做伴随状语.
例如： 1．Mr.．Smith flew to New York this morning,his assistant to join him there this Saturday．今天早上史密斯先生坐飞机去了美国,他的秘书 星期六和他在那儿见面. 2．He was lying on the grass,his hands crossed under his head．他躺在 草地上,头枕双手. 3．He stood on the deck,pipe in mouth．他站在甲板上,嘴里叼着烟 斗.
分词短语做伴随状语：
现在分词短语和过去分词短语都可以做伴随状语, 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.
例如： 1．“Can't you read?”Mary said angrily pointing to the notice．玛丽生气 地指着通知说：“难道你不识字吗?” 2．He sent me an e-mail hoping to get further information．他给我发了 一封电子邮件,希望得到更多信息. 3．He hurried to the hall,followed by two guards．他匆忙进了大厅, 后面跟着两个警卫.
形容词短语做伴随状语：
形容词短语做伴随状语时,通常表状态.
例如： 1．Full of apologies,the manager approached us．经理向我们走来, 嘴里不停地说着抱歉的话. 2．He was too excited,unable to say a word．他太激动了,一句话也 说不出来. 3．He stared at the footprint,full of fear．他盯着脚印,满心恐惧.
单个形容词做伴随状语：
单个形容词做伴随状语也表示状态,不表动作.
例如： 1．He sat there,silent．他一声不响地坐在那儿. 2．Breathless,she rushed in throughthe back door．穿过后门,他气喘 吁吁地冲了进来. 3．He went to bed,coldand hungry．他又冷又饿地上床睡觉了其实分词做伴随状语就是分词做方式状语的一种,伴随是一种方式.大多情况下 其实方式状语从句都等于伴随状语从句. 只有在 just) as…so…结构中位于句首, 这时 as 从句带有比喻的含义,意思是"正如…","就像",多用于正式文体
伴随状语的特点是：
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 1）现在分词与过去分词作状语的区别. 现在分词做状语与过去分词做状语的最主要区别在于两者与所修饰的主语的主 动与被动关系的区别. 1）现在分词作状语时,现在分词的动作就是句子主语的动作,它们之间的关系 是主动关系. ）过去分词作状语时,过去分词表示的动作是句子主语承受的动作,它们之间的 关系是被动关系.
比如 The teacher came in the classroom with handing a book in his hand. with handing 就是个例子 过去分词,现在分词 都可以做伴随状语,即在某件事情发生的时候相伴发生的 事情 这个句子 老师进入了教室,他是拿着本书进入教室的,在他进入教室的时 候他的手中有一本书（相伴）知道意思了吧.
做题的时候要注意区分什么时候使用过去分词和什么时候使用现在分词做伴随 状语.
一般的无非又几种情况：
过去分词表示一种完成了的 或者是被动意义的动作 分词作状语（关键找逻辑主语）
a)放在句首的分词往往看作时间状语 1 以及原因状语 2 1. Looking (when I looked) at the picture, I couldn't help missing my middle school days. 2.Seriously injured, Allen was rushed to the hospital. =As he was seriously injured, Allen was rushed to the hospital.
b)放在句中或句末常常看作为伴随状态(并列句) The girl was left alone in the room,weeping（crying ）bitterly. (但注意特殊：Generally/frankly speaking... / taken as a whole(总的来讲）不考 虑逻辑主语,看作为独立成分) C.difference between "being done"&"done" 1）being done---->"又被动,又进行” 2）done------->“又被动,又完成” 1）,2）均可作原因状语从句,而且更倾向于“done”,因为简单 eg.(being) deeply moved, she couldn't help crying. 但作条件(a),伴随状语只能用(b)2）,不能用 1） eg.(a)Once seen, it can't be forgotten./If asked so many questions, Mary's face will turn red. (b)she watched all the gifts ,greatly amazed.(=she watched all the gifts, and was greatly amazed 在一般句中：v1,and v2/ v1,v2,and v3) 结论： 当发现所要填非谓语为被动时, 能用"done"就用"done"(除了有先后顺序(用 (having done/having been done),详见 D) D.having done1)/having been done2)作状语时,分词的动作先于谓语动词 eg.1)Having handed in the paper, he left the room.(分词逻辑主语与主语相同, 用 having done) 2)Having been given a map, we found our way easily.(分词逻辑主语与主语不 同,是别人给的,用 having been done)

孟母三迁