三年級英語語法復習大全(2)
三年級英語語法復習大全
第一至第十 | 第十一至第十九 | 第二十及以上 |
first | eleventh | |
second | twelfth | twentieth |
third | thirteenth | thirtieth |
fourth | fourteenth | fortieth |
fifth | fifteenth | fiftieth |
sixth | sixteenth | sixtieth |
seventh | seventeenth | seventieth |
eighth | eighteenth | eightieth |
ninth | nineteenth | ninetieth |
tenth | 除第1、2、3, 直接加th | ty結尾，變y為ie，再加th |
語法專項整理(五)介詞
1、介詞的分類
詞類 | 例詞 |
時間介詞 | at 7:00, in the morning, on Monday, before lunch, after dinner, |
方位介詞 | on the desk, in the park, at home, under the tree, behind the door, over the bed, in front of the house, near the lake, next to the cinema, |
動向介詞 | go to school, jump into the water, climb up the tree, ski down the mountain, run out of the door |
方式介詞 | by bike, on foot, play with my friend |
2、at, on, in在表示時間時的區(qū)別：
(1)at用于具體的時刻：at 10:05, at noon, at night,
(2)on用于具體的一天(常與星期、節(jié)日、具體的某一天連用，也表示某天上午、下午或晚上)：
on Monday, on New Year’s Day, on June 1st, on my birthday, on Friday morning, on the weekend,
(3)in用于某一段時間(常與上午、下午、晚上連用，常與月份、季節(jié)、年份連用)：
in the morning, in the afternoon, in the evening, in March, in spring, in 2007,
語法專項整理(六)There be 結構
1、 概念：There be結構又叫存在句，表示某地存在某物。
2、 There be 結構的肯定句
(1) There is + 可數(shù)名詞單數(shù) + 地點：There is a book on the desk.
(2) There is + 不可數(shù)名詞 + 地點：There is some water in the glass
(3) There are + 可數(shù)名詞復數(shù) + 地點：There are some flowers in the garden.
l 就近原則：若句子中有幾個并列的主語，be動詞的形式和最近的一個主語保持一致
There is a book and 2 pencils in the bag.
There are many flowers and a tree in the garden.
3、 There be 結構的疑問句(把be動詞提到句子前面，若句子中有some，要變?yōu)閍ny)
Is there a book on the desk? Is there any water in the glass?
Are there any flowers in the garden?
語法專項整理(七)現(xiàn)在進行時
1、概念：表示說話時正在進行的動作。(提示詞：Now, look, listen)
2、構成：be動詞 + 現(xiàn)在分詞：
形式 | 例句 |
第一人稱單數(shù) + am + 現(xiàn)在分詞 | I am reading a book. |
第三人稱單數(shù)+ is + 現(xiàn)在分詞 | He is doing homework. She is flying a kite. |
第二人稱單數(shù)/各人稱復數(shù)+ are + 現(xiàn)在分詞 | We are cooking dinner. They are cleaning the room. |
3、現(xiàn)在分詞
規(guī)則 | 例詞 |
一般情況，加ing | Walk-walking, do-doing |
e結尾，去e加ing | dance-dancing, make-making, write-writing, have-having, |
漢堡單詞，雙寫加ing | run-running, swim-swimming |
語法專項整理(八)一般現(xiàn)在時
1、概念：表示現(xiàn)在存在著的狀況，也可理解為習慣性的動作，不斷重復發(fā)生的事。
提示詞：always, often, usually, sometimes, never, every morning, every… ~
2、構成：
分類 | 形式 | 例句 |
Be動詞的一般現(xiàn)在時 | 第一人稱單數(shù) + am | I am a student. |
第三人稱單數(shù) + is | He is a boy. She is pretty | |
第二人稱單數(shù)/各人稱復數(shù) + are | We are good friends. | |
其他動詞的一般現(xiàn)在時 | 第三人稱單數(shù) + 動詞單三形式 | She works in the hospital. He livesin the city. |
其他人稱 + 動詞原形 | They work in the farm. We live in the village. |
3、動詞單三形式：
規(guī)則 | 例詞 |
一般動詞,加s | work—works, make—makes |
o，ch，sh，s，x結尾加es | watch--watches, wash--washes, go--goes, do--does |
輔音字母加y，去y加ies | fly—flies, cry--cries, |
元音字母加y，直接加s | buy--buys, play—plays, stay--stays, |
不規(guī)則形式 | have--has are,am—is |
語法專項整理(九)一般將來時
1、概念：表示將來要做的事，要發(fā)生的動作。
提示詞：tomorrow, tonight, this afternoon, this evening, this weekend, next weekend, next Monday,
2、構成：
(1)be動詞 + going to + 動詞原形：
I am going to watch TV after dinner.
He is going to buy a book this afternoon.
They are going to go swimming next Sunday.