1、以字母y结尾的名词变复数，如果字母y的前面是元音（a, e , i, o, u），就在y后面直接加s。如：boy—boys. 如果字母y前面是辅音，则把y变为i, 再加es. 如：lady—ladies city—cities story--stories.
2、动词的第三人称单数：（所谓第三人称单数，就是指既不是你也不是我的另外一个人，可以是具体的人名，他，她，或它，也可以是称呼类，如my mother, my friend等。当一个句子中的人物是第三人称单数，并且这个句子又是一般现在时态时，该句子中的动词要使用第三人称单数形式。）
have—has like—likes do—does go—goes watch--watches
3、词语变化：fun(形容词形式)――funny funny（名词形式）――fun know(同音词)――no
he(宾格形式)---him
反义词：tall—short long—short young—old new—old strong—thin fat—thin
kind—strict active—quiet
4、be like与do like: 在本单元中，What’s …like？的句型是主句型，这里的like是“像…一样”的意思. What’s …like？是问某某长得什么样子,同学们千万别和like的另一个意思“喜欢”相混了。它的答语一般用：He/She/ It is…(后面跟描写人的外貌特征的词语)，如：What’s your father like?你爸爸长得什么样子？。而在do like的句子中，like的意思才是“喜欢”的意思。如：What does your father like? 你爸爸喜欢什么？
第二单元：
1、当询问别人喜欢哪些课程时，classes应当用复数形式，因为别人喜欢的课程可能不止一门。What classes do you like? 你喜欢哪门课程？
2、表示星期几的七个单词，开头第一个字母都要大写。其简写形式为前三个字母加点。
week 星期，周。（一周包括七天）
How many days are there in a week? There are 7.一个星期有几天?七天。
Weekend周末（包括周六和周日）
How many days are there in a weekend? There are 2.一个周末有几天? 2天。
在英语国家中，一个星期的第一天是星期天Sunday. The first day of a week is Sunday.
3、当介词in, on ,at 后面跟表示时间的词语时,表示在某年或某月（当只有年和月的时候），用in.如 in May在五月。In 1988，在1988年。表示在某段时间，如在上午，下午，晚上也用in.如in the morning, in the afternoon, in the evening. 表示在某日，在星期几时，用on。如on Monday, on Sunday . 表示在几点几分，在具体时间时，用at. 如at 6:30, at 9 o’clock.
4、近义词：often(经常)—usually（常常，通常）
5、play with 和…在一起，with后面常用人称代词的宾格形式。 如：I can play ping-pong with you.我可以和你一起打乒乓球。
6. I like Mondays. John likes Sundays. 这里的likes是like的三单形式，在一般现在时的句子中，如果主语是第三人称单数，注意动词要变成三单形式。
7、Today is Sunday. I like Sundays. 在这个句子中，前一个星期日Sunday是特指“今天是星期一”，所以用单数形式，而后一个星期日Sundays是泛指所有的星期日，所以用复数形式。
第三单元：
1、What would you like for lunch? 你午饭想吃什么？“for”:为了。后面要接名词或人称代词的宾格形式。 如：I’d like some tomatoes and mutton。我想吃一些西红柿和羊肉。
2、some与any的区别：
（1）巧记：肯定句中用 some，请求邀请委婉时，some 用于疑问句;
否定疑问用 any, 肯定句中用 any，任何一个接单数。
（2）它俩都是“一些”的意思，后面既可接可数名词复数，又可接不可数名词，但用法有区别。
some 用于肯定句。但当表示请求、邀请、语气委婉，希望对方得到对方肯定回答时，可用于疑问句，此时句中常出现情态动词 can, may, could, would. any 用于否定句和疑问句。 如：
A：Could I have some meat?
B：Sorry, you can't have any meat. There isn't any.
（3）如果名词前有冠词、指示代词、物主代词等限定词修饰时，则只能用 some of，表示“……中的一些。
Some of the apples are hard to reach.
Some of your teachers are not young.
(4)注意:
any 也可用在肯定句中, 此时后面接可数名词的单数, 意为 “任何一个”。如：
You can ask any student in our class.
You can choose any subject.
3、I have eggplant and tomatoes for lunch. 我午饭吃茄子和西红柿。
这里的eggplant是指一道菜，是被切碎了的，熟的，所以这里的eggplant是不可数名词，不能用复数形式。
一日三餐的英语说法： breakfast 早饭 lunch 午饭 dinner 晚饭
西红柿tomato 和土豆potato在指一道菜的时候，一定要用复数形式。
如：I have tomatoes and potatoes for lunch on Mondays .
4、下列单词的形容词形式：
salt― salty（咸的） health― healthy（有用的） taste― tasty（好吃的）
5、同义词：have to (不得不)---must（必须）
同义句： What’s your favourite food? ==Which food do you like best?
6、What’s your favourite food?后面一般跟表示集合的名词，如：food食物 fruit 水果 drink饮料 colour颜色 class课程 book书 sport运动 vegetable蔬菜 animal动物number数字 day天，日子
第四单元：
1、当你想询问别人会干什么时， 用What can you do? 答句有肯定形式：Yes, I can . 否定形式：No, I can’t.
当你想知道他人会干什么时，可用What can he do ? 或者What can she do ? 答句有肯定形式：Yes, he can ./ Yes, she can. 否定形式：No, he can’t./No, she can’t.
2、I can …变为一般疑问句：Can you …? He can…或She can …变为一般疑问句：Can he …/ Can she …? 其中的he , she 也可以变为其他具体的人物。如 My mother can cook the meals. 变为一般疑问句：Can your mother cook the meals?
3、help (形容词形式)――helpful helpful (动词形式)――help
4、当句子中出现了助动词can或其否定形式can’t时，其他的动词要用原型。
第五六单元：
1、There be 句型包括There is a …句型和there are …句型两种。There is a …句型表示有一个，后面跟名词单数。如There is a mirror on the wall.
There are …句型表示有多个，后面一般接具体数字或some , many，再后面跟名词复数，如 There are two end tables near the bed.
There be 句型又叫存在句型，它一般表示在某地有某物。在翻译中文句子时，一般情况下，只要中文句子表达的是“存在”性质的“有”，就要用there be 句型来翻译。如：有一个垃圾桶在门的后面。There is a trash bin behind the door.
There be 句型和一般句型可以相互转换。如：
(1) 把下列句子用There be 句型改写：
The computer is on the desk.
――There is a computer on the desk.
(2) 把下面的句子改为一般句型。
There is a mirror over the bed.――
The mirror is over the bed.
2、There be 句型中使用单数句式还是复数句式遵循就近原则。即离There 最近的名词是单数时用There is a ….离There 最近的名词是复数时，用There are …，不管最后面的名词是单词还是复数，都不去管它，如：
（1）有一个讲台和许多课桌在教室里。There is a teacher’s desk and many desks in the classroom.
(2) 有许多课桌和一个讲台在教室里。There are many desks and a teacher’s desk in the classroom.
3、on 与over的区别：on 在…上面。表示与下面的物体互相接触，紧挨着。
over在…上面，表示与下面的物体不接触，两个物体之间有一定的距离。
20、There be 的单数形式在变为一般疑问句时，将助动词be提前，与there交换位置，如句中有第一人称代词，变为第二人称，将句末的句号变为问号，其他不变。如：There is a closet near the bed.----Is there a closet near the bed?
There is a river in my village.----Is there a river in your village?
There be 的复数形式在变为一般疑问句时，将助动词be提前，与there交换位置，然后将句中some或many变为any, 如句中有第一人称代词，变为第二人称，再将句末的句号变为问号，其他不变。
如：There are some fish in the river.----Are there any fish in the river?
4、There be 句型表示“有”和have, has表示“有”的区别：
There be 句型表示“有”的意思，表示在某个地方有什么，它表示的一种存在。如：There is a bag on the desk. 有一个书包在课桌上。
There are many book on the desk. 有许多书在课桌上。
Have, has 表示“有”的意思，表示一种占有，拥有的关系，一般表示某人有某物。当主语人称是第三人称单数时用has, 其他时候用have.如：
I have a new pen. 我有一支新钢笔。
He has a big schoolbag. 他有一个大书包。
5、示在树上时，in 与on 的不同用法：
当表示人或其他动物在树上时，用in. 当表示树本身的东西如树叶、果实在树上时，用on。如：The bird is in the big tree and the apple is on the small tree.
6、一些特殊疑问词的意义与用法：
（1）what什么，用来问是什么，叫什么，干什么,什么样等。如：What is this? 这是什么？ What’s your name? 你叫什么名字？ What’s your father like?你爸爸长得什么样子？ What’s your mother?你妈妈是干什么的？
（2）Where哪里，用来问在什么地方。如Where are you from?你来自哪里？ Where is my ruler?我的尺子在哪里？
（3）Who谁，用来问人物是谁？如：Who’s that man?那个男人是谁？
Who’s your math teacher? 你的数学老师是谁？
（4）Whose 谁的，用来问东西是谁的。如：Whose book is this? 这是谁的书？ Whose father is a farmer?谁的爸爸是农民？
Whose bike is blue?谁的自行车是蓝色的？
（5）What time什么时间。用来问具体时间是几点。
如：What time is this?现在几点了？
（6）What colour什么颜色。用来问物体是什么颜色的。
如：What colour is your bag?你的书包是什么颜色的？
（7）When 什么时候。用来问时间，后面常跟动词。
如：When do you get up?你什么时候起床？
（8）How 怎么样。用来问人的身体状况。
如：How are you? 你好吗？
How is your mother?你妈妈好吗？
（9）How many多少.用来问物体的数量。
如：How many books do you have?你有多少本书？
How many days are there in a week?
一个星期有几天？
（10）How much 多少钱。用来问商品或物体的价格。
如：How much is your schoolbag?你的书包多少钱？
How much is this book?这本书多少钱？
（11）Which哪一个。用来问具体的哪一个。
如：Which class do you like best?你最喜欢哪一门课程？
Which Class are you in ?你在哪个班级？I am in Class two.我在二班。
Which Grade are you in ?你在哪个年级？I am in Grade six。我在六年级。
Which Grade is your sister in ? 你妹妹在哪个年级？
She is in Grade 4.她在四年级。
（表示年级或班级的单词Grade, Class在答语中必须大写第一个字母。）
7、以系动词be( am , is , are ) 和助动词can , do等开头的一般疑问句，在答语中首先要用 yes或no做出正误判断，后面必须出现问句开头的系动词或助动词,当问句中出现第一人称代词时，还要变为第二人称。
如: Are you a student? Yes, I am. （No, I am not.）
Is your sister a teacher? Yes, she is. ( No, she isn’t.)
Am I a teacher? Yes, you are. ( No, you aren’t.)
Do you have new teachers? Yes, we do. ( No, we don’t.)
Does Amy have new teachers ? Yes, she does. (No, she doesn’t.)
Can you wash the clothes? Yes, I can. (No, I can’t.)
Can your brother set the table? Yes, he can. (No, he can’t.)
Can your friend make the bed? Yes, she can.
( No, she can’t)Last summer, I went to Hangzhou with my parents. We visited my parents' friends first. We went to the West Lake together. I enjoyed the beautiful scenery there. There were so many people in the park near the Wast Lake. We were happy.
Last weekend, all students in my class went to the park. It was sunny that day. The park was full of kinds of flowers. In the morning, some of my classmates sang, danced, and some played volleyball. Some were playing Chinese chess under the tree. After lunch, we went boating and climbing the hills. Although we were tired, we were happy. We enjoyed ourselves that day. In the late of afternoon, we retuned to school by bus.
翻译：
上周末，我班的所有学生去了公园。那是阳光明媚的那一天。公园里满是鲜花。在早上，一些同学唱歌，跳舞，有的玩排球。还有些人在树下玩中国象棋。午饭后，我们去划船和登山。虽然我们都累了，但我们很高兴。那天我们玩的都很开心。在下午晚些了的时候，我们乘巴士返回了学校。
Last weekend, all students in my class went to the park. It was sunny that day. The park was full of kinds of flowers. In the morning, some of my classmates sang, danced, and some played volleyball. Some were playing Chinese chess under the tree. After lunch, we went boating and climbing the hills. Although we were tired, we were happy. We enjoyed ourselves that day. In the late of afternoon, we retuned to school by bus.
翻译：
上周末，我班的所有学生去了公园。那是阳光明媚的那一天。公园里满是鲜花。在早上，一些同学唱歌，跳舞，有的玩排球。还有些人在树下玩中国象棋。午饭后，我们去划船和登山。虽然我们都累了，但我们很高兴。那天我们玩的都很开心。在下午晚些了的时候，我们乘巴士返回了学校。
（注：真的是九句话，有哪里写的不对，欢迎随时追问^_^)
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