天津河西速記英語單詞，譽德文苑快樂學英語
譽德教育注重培養(yǎng)學生記憶英語單詞能力。讓孩子輕松記單詞，3000單詞贏戰(zhàn)900小升初，4000贏戰(zhàn)1600中考，7000贏戰(zhàn)3500高考。更重要的是我們教授的不單單是英語，更是一種思維；提升的不僅是知識點應(yīng)用，更是一種學習英語的方法、能力
譽德教育英語小課堂：
一、助動詞
助動詞本身沒有詞義，不能單獨作謂語，只能和主要動詞一起構(gòu)成謂語動詞，表示否定、疑問、時態(tài)、語態(tài)等語法形式，或用來加強語氣。常用的助動詞有:be, do, have, shall, will等。它們的具體用法如下：
（1）助動詞be
a. 可用于構(gòu)成進行時態(tài)
she is doing her homework now.
i asked him what he had been doing all afternoon.
b. 可用于構(gòu)成被動語態(tài)
the baby was put in bed by his mother.
the invitation was received yesterday.
c. 可與動詞不定式構(gòu)成謂語
these books are not to be taken out of the room.
she is to arrive at six this morning.
（2）助動詞have
a. 構(gòu)成完成時態(tài)
i have not seen him for three years.
how long has your uncle taught in the village?
he had lived in scotland for fifteen years before he came to england.
b. 和動詞不定式構(gòu)成謂語，表示因客觀環(huán)境促使不得不做的事情
she had to go shopping yesterday.
（3）助動詞do
a. 構(gòu)成疑問句和否定句
did anyone sharpen this knife?
i don’t think you are right.
b．用來加強語氣
i do want to have a talk with you
do come and see me.
c．用來代替動詞詞組
have you finished your work?yes, i did yesterday.
he plays basketball well. so does his brother.
（4）助動詞shall
構(gòu)成將來時態(tài)，單純表示未來情況
i shall not be back tonight.
we shall pay a visit to the banpo ruins next month.
（5）助動詞will
構(gòu)成將來時，用于第v一、二、三人稱。如：
they will move to a new house.
she will not eat any solid food.
注意：
（1）have to 與must的區(qū)別
must是情態(tài)動詞，意思是“必須”、“應(yīng)該”、“一v定要”，后接動詞原形。must的否定形式為mustn’t.構(gòu)成疑問句時，肯定回答一般用must。否定回答用needn’t或don’t have to 表示“不必”。如：
must i do it now ?
yes, you mustno, you needn’t.
have to 表示“不得不，必須”，可用于多種時態(tài)。
i missed the train, so i had to take a taxi.
i’m sorry i won’t go with you, i’ll have to go to the bank.
we don’t have to install this new television set.
（2）used to 表示過去常常，而現(xiàn)在不再有的習慣。其否定形式為: used not to, usedn’t (usen’t) to , didn’t use to.
i used to go to work by bus. now i go by car.
i used to collect stamps when i was a boy.
used they to have a lot more free time ?
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譽德教育英語小課堂：
一、助動詞
助動詞本身沒有詞義，不能單獨作謂語，只能和主要動詞一起構(gòu)成謂語動詞，表示否定、疑問、時態(tài)、語態(tài)等語法形式，或用來加強語氣。常用的助動詞有:be, do, have, shall, will等。它們的具體用法如下：
（1）助動詞be
a. 可用于構(gòu)成進行時態(tài)
she is doing her homework now.
i asked him what he had been doing all afternoon.
b. 可用于構(gòu)成被動語態(tài)
the baby was put in bed by his mother.
the invitation was received yesterday.
c. 可與動詞不定式構(gòu)成謂語
these books are not to be taken out of the room.
she is to arrive at six this morning.
（2）助動詞have
a. 構(gòu)成完成時態(tài)
i have not seen him for three years.
how long has your uncle taught in the village?
he had lived in scotland for fifteen years before he came to england.
b. 和動詞不定式構(gòu)成謂語，表示因客觀環(huán)境促使不得不做的事情
she had to go shopping yesterday.
（3）助動詞do
a. 構(gòu)成疑問句和否定句
did anyone sharpen this knife?
i don’t think you are right.
b．用來加強語氣
i do want to have a talk with you
do come and see me.
c．用來代替動詞詞組
have you finished your work?yes, i did yesterday.
he plays basketball well. so does his brother.
（4）助動詞shall
構(gòu)成將來時態(tài)，單純表示未來情況
i shall not be back tonight.
we shall pay a visit to the banpo ruins next month.
（5）助動詞will
構(gòu)成將來時，用于第v一、二、三人稱。如：
they will move to a new house.
she will not eat any solid food.
注意：
（1）have to 與must的區(qū)別
must是情態(tài)動詞，意思是“必須”、“應(yīng)該”、“一v定要”，后接動詞原形。must的否定形式為mustn’t.構(gòu)成疑問句時，肯定回答一般用must。否定回答用needn’t或don’t have to 表示“不必”。如：
must i do it now ?
yes, you mustno, you needn’t.
have to 表示“不得不，必須”，可用于多種時態(tài)。
i missed the train, so i had to take a taxi.
i’m sorry i won’t go with you, i’ll have to go to the bank.
we don’t have to install this new television set.
（2）used to 表示過去常常，而現(xiàn)在不再有的習慣。其否定形式為: used not to, usedn’t (usen’t) to , didn’t use to.
i used to go to work by bus. now i go by car.
i used to collect stamps when i was a boy.
used they to have a lot more free time ?
天津譽德文苑教育咨詢有限公司
18602258280
北京時耐爾450軋機減震器
304不銹鋼管生產(chǎn)廠家哪家好？幫忙推薦一家
天津市研學，深度游學體驗
PA384Z-3X1詢價0731-23353000
聊城鑫臺島_通達車業(yè)_鑫臺島生產(chǎn)廠家
天津河西速記英語單詞，譽德文苑快樂學英語
供應(yīng)三菱PLC中國代理商FX2N-16MT-001廣州超低價
提取設(shè)備|中藥提取罐|半噸超聲波提取罐
供應(yīng)屏蔽袋供應(yīng)
供應(yīng)雄獅補充油GER900
小家電取暖電器 平安保險公司禮品
工作服供應(yīng)商_工作服_上寶制衣
供應(yīng)母線槽和母線橋
山東廠家直銷冷凍鹿肉批發(fā)經(jīng)銷商，鹿肉價格
山推 花鍵套16Y-15-00013
優(yōu)質(zhì)的12噸電機車廠家
海報架廠家直銷
通順金屬(圖)|超市貨架公司|超市貨架
蘇州皓翔化學供應(yīng)：D-別蘇氨酸24830-94-2
Aperio VERSA 多功能明場、 熒光和FISH掃描儀