1. 誰有初二英語下學期所有語法知識點 急求！
你要什麼版本的？？人教版？？
2. 初二英語下冊語法重點
下冊主要就是被動語態啦被動語態的主要用法
一．定義
語態是動詞的一種形式，它表示主語和謂語的關系。語態有兩種：主動語態和被動語態。如果主語是動作的執行者，或者是說動作是由主語完成的，要用主動語態；如果主語是動作的承受者，或者是說動作不是由主語而是由其他人完成的，則用被動語態。
■當不知道或沒有必要指出動作的執行者時，常用被動語態，這時往往不用by短語。
The front window in the classroom was broken yesterday. 昨天，教室的前窗被打破了。(不知誰打破的)
They have been poorly paid. 他們的工資太低。(沒必要指出工資是誰付的)
■突出或強調動作的承受者，如果需要說出動作的執行者，用by短語。
The time-table has been changed. 時間表已變動了。(要突出的是「時間」)
These books are written especially for children. 這些書是專門為孩子們寫的。(強調的是「」這些書)
■為了使語言得體或圓滑等不願意說出動作的執行者。如：
You are requested to make a speech at next meeting. 請您在下次會議上作個發言。
It is said that she is going to be married to a foreigner. 據說她要嫁給一個外國人。
■出於修辭的原因，或是說為了更好地安排句子。如：
The notion is especially opposed to by those who have invested much in the area. 這個提議特別遭到了那些在本地區投資很大的人的反對。(因those的定語太長了，若用它作主語，主語與謂語就相距太遠而顯得句子鬆散。)
8種常用時態的被動語態
由「助動詞be + 動詞的過去分詞」構成。助動詞be 有時態、人稱和數的變化。
(1) 一般現在時：am/is/are +過去分詞。如：
Rice is grown in south China. 華南種植水稻。
(2) 一般過去時：was/were+過去分詞。如：
The glass was broken yesterday. 這塊玻璃是昨天打爛的。
(3) 現在進行時：am/is/are being +過去分詞。如：
The project is being carried out. 這個計劃正在執行中。
(4) 過去進行時：was/were/being +過去分詞。如：
This road was being built this time last year. 這條路去年這個時候還在修建。
(5) 一般將來時：will be +過去分詞。如：
The cars will be sent abroad by sea. 這些汽車將由水路運往國外。
(6) 過去將來時：would be +過去分詞。如：
The manager said the project would be completed by the end of the year. 經理說這個工程在年底前將會完成。
(7) 現在完成時：have/has been +過去分詞。如：
This novel has been translated into several languages. 這本小說已被譯成了幾種語言。
(8) 過去完在時：had been +過去分詞。如：
When I got to the theatre, I found the tickets had already been sold out. 我到達劇院時，發現票已賣完了。
3. 初二英語知識點有哪些，語法有哪些
Unit1 Where did you go on vacation?
go on vacation去度假
stay at home待在家裡
go to the mountains去爬山
go to the beach去海灘
visit museums 參觀博物館
go to summer camp去參觀夏令營
quite a few相當多
study for為……而學習
go out出去
most of the time大部分時間
taste good嘗起來很好吃
have a good time玩得高興
of course當然
feel like給……的感覺；感受到
go shopping去購物
in the past在過去
walk around四處走走
because of因為
one bowl of… 一碗……
the next day第二天
drink tea喝茶
find out找出；查明
go on繼續
take photos照相
something important重要的事
up and down上上下下
come up出來
buy sth. for sb. / buy sb. sth.為某人買某物
taste + adj. 嘗起來……
look+adj. 看起來……
nothing…but+動詞原形
除了……之外什麼都沒有
seem+（to be）+ adj. 看起來……
arrive in+大地點 / arrive at+小地點
到達某地 decide to do sth.決定去做某事
try doing sth.嘗試做某事 / try to do sth.盡力去做某事
forget doing sth.忘記做過某事/ forget to do sth.忘記做某事
enjoy doing sth.喜歡做某事
want to do sth.想去做某事
start doing sth.開始做某事
stop doing sth. 停止做某事
dislike doing sth. 不喜歡做某事
keep doing sth.繼續做某事
Why not do. sth.?為什麼不做……呢？
so+adj.+that+從句
如此……以至於……
tell sb. (not) to do sth. 告訴某人（不要）做某事
Unit2 How often do you exercise?
help with housework幫助做家務
on weekends在周末
how often多久一次
hardly ever幾乎從不
once a week每周一次
twice a month每月兩次
every day每天
be free有空
go to the movies去看電影
use the Internet用互聯網
swing dance搖擺舞
play tennis打網球
stay up late熬夜；睡得很晚
at least至少
have dance and piano lessons上舞蹈課和鋼琴課
go to bed early早點睡覺
play sports進行體育活動
be good for對……有好處
go camping去野營
not…at all一點兒也不……
in one』s free time在某人的業余時間
the most popular最受歡迎的
such as比如；諸如
old habits die hard積習難改
go to the dentist去看牙醫
morn than多於；超過
less than少於
help sb. with sth.幫助某人做某事
How about…? ......怎麼樣？/ ……好不好？
want sb. to do sth.想讓某人做某事
How many+可數名詞復數+一般疑問句？ …有多少…?
主語+find+that從句. ……發現……
spend time with sb.和某人一起度過時光
It』s+ adj.+ to do sth. 做某事的……的。
ask sb. about sth.向某人詢問某事
by doing sth. 通過做某事
What』s your favorite……?你最喜愛的……是什麼？
the best way to do sth.做某事的最好方式
4. 求初二英語下冊語法知識要點
我就說說我們這的吧，我剛結束完初二，下學期就奔三啦～
初二下冊最在我們這兒，最最主要的就是——從句。分出各種從句類型，但初二下沒有深入地學習從句。主要就是這幾種：if引導的條件狀語從句、原因狀語從句、讓步、時間、疑問詞引導、或者that引導的賓語從句。
簡單講一下吧，首先，賓語從句最最重要的一點就是——從句部分用陳述句語序。（引導詞後面的句子就是從句）舉個疑問詞引導的吧：I don』t know 【what】should I do。【what是引導詞】
平時我們問「我應該做什麼」肯定這么說：what should I do？ 而在賓語從句中，就要將疑問句語序改為陳述句語序。
【that】引導的賓語從句很簡單，that引導的必須是一個陳述句，不能是個疑問句，所以啊，肯定得用陳述句語序嘍～
if引導的條件狀語從句比前面兩種而言較難。【當if解釋為「如果」時，句子才是一個條件狀語從句，才需要遵守下面的約定：】
if是引導詞，if之後的那一句話便是從句，從句部分必須用一般現在時，不管它是要表示將來過去還是現在。如果主句用了（即「 不是if引導的那一句句子，不是if後的那一句句子，if前的那一句句子便是主句）將來時（will……be going to）那麼從句部分必須用一般現在時，不管它是要表示將來還是現在。
例句：（這里的if解釋為「如果」）
If he comes I will tell you immediately。 【如果】他來，我會立刻告訴你。
分析：
此句的從句部分便是「he comes 」，因為它在if之後。這里其實要表示一個將來時的，如果他來，並不知道來不來對不？但依舊要用上一般現在是。
I will tell you immediately為主句部分，用了將來時，因為它沒有緊接著if。
if也可以表示為：是否。
當if表示為是否時，if部分不一定要用上現在時。
比如：I donnot know if he will come（我不知道他是否會來）
原因狀語從句其實很簡單，通俗來說，就是because引導的從句嘍～用法其實樓主早就應該知道的，只是給他起一個名字而已，也不需要特別注意事態，因為because跟陳述句的吧。。
時間也很簡單啊，就是when、while（while後面的句子要用上進行時【現在進行時、過去進行時……】）、 before, after,, as soon as, until, since...... 這里要注意一點的是，如果主句是一般將來時，從句只能用一般現在時表示將來意義。和if條件狀語從句差不多用法。
讓步么，就是because和so不能用在同一句句子中，有了because就不能有so，so就不能用because，同樣的，although（雖然）、but也同樣。
另外還有一個很重要的就是——直接引語和間接引語。
這種從句並非由主語直接敘述出來，而是通過第三人轉述的。實際上間接引語大都是賓語從句，當直接引語為祈使句，陳述句，疑問句被轉換成間接引語時，句子的結構，人稱，時態，時間，時間狀語和地點狀語等都要發生改變。間接引語其實就是我們所說的第三人稱轉述。
直接引語中的第一人稱，一般轉換為第三人稱，如：
He said，「I am very sorry.」 ——>He said that he was very sorry.
直接引語中的第二人稱，如果原話是針對轉述人說的，轉換為第一人稱，如：
「You should be more careful next time,」 my father told me.——>
My father told me that I should be more careful the next time.
直接引語中的第二人稱，如果原話是針對第三人稱說的，轉換成第三人稱。如：
She said to her son, 「I'll check your homework tonight.」 ——>
She said to her son that she would check his homework that night.
人稱的轉換包括人稱代詞、反身代詞、物主代詞等，如：
He asked me, 「Will you go to the station with me to meet a friend of mine this afternoon?」 ——>
He asked me whether I would go to the station with him to meet a friend of his that afternoon.
總之，人稱的轉換不是固定的，具體情況，具體對待。
直接引語改為間接引語時，主句中的謂語動詞如果是過去時，從句（即間接引語部分）的謂語動詞在時態方面要作相應的變化，變成過去時范疇的各種時態（實際也是賓語從句的時態要求）
指示代詞、時間狀語, 情態動詞、在直接引語變為間接引語時需要的變化：
this —— that these —— those now —— then today —— that day
can —— could may —— might must\ —— had to shall —— should
- -累死我了0 0，間接引語、直接引語的例子是從網路上找的。
5. 八年級下冊的英語語法知識有哪些
你是什麼版本的教材啊
6. 初二下冊英語必知的語法有哪些
您好, 初二下冊英語必知的語法有
八年級下冊語法和短語
Unit 1 Will people have robots?
重點語法：一般將來時態的應用
do/does 的一般將來時態形式：(shall/will) do
do/does 的一般將來時態的被動語態：(shall/will) be done
一般將來時態的肯定句、否定句、疑問句形式：
肯定句例句：People will have robots in a few years.
否定句例句：People (will not/won't) have robots in a few years.
一般疑問句例句：Will people have robots in a few years?
特殊疑問句例句：What will people have in a few years?
重點短語：won't = will not
they'll = they will
she'll = she will
he'll = he will
I'll = I will
fall in love with(sb./sth.) 愛上（某人/某物）
be able to do sth. 能夠做某事
come true 實現
in the future 未來
hundreds of 數以百計的
thousands of 數以千計的
look for(sb./sth.) 尋找（某人/某物）
will → would 情態動詞 will 的原形和過去式
may → might 情態動詞 may 的原形和過去式
Reading Strategy(閱讀方法)
Look at the title and picture, and predict what you will read about. (看著標題和圖片，預知你要閱讀那些方面的內容。)This helps you get ready to acquire new information. (這樣可以幫助你獲得一些新的信息。)
Unit 2 What should I do?
重點語法：過去將來時態（將來時態的委婉說法）
do/does 的過去將來時態形式：(should/would) do
do/does 的過去將來時態的被動語態：(should/would) be done
過去將來時態的肯定句、否定句、疑問句形式：
肯定句例句：You should write a letter to him.
否定句例句：You shouldn't write a letter to him.
一般疑問句例句：Should I write a letter to him?
特殊疑問句例句：What should I do?
重點短語：keep sb. out 不讓某人進入
What's wrong? = What's the matter? = What's the problem? 怎麼了？
out of style 不時髦的；過時的
call sb. up 給某人打電話
pay for sth. 為某事付款
part-time job 兼職工作
the same as = be same (to/with) 與……同樣
in style 時髦的；流行的
get on [well] with sb. = get along [well] with sb. 與某人相處（好）
didn't = did not
couldn't = could not
as ... as possible 盡可能……(eg/ as soon as possible 盡快)
all kinds of 各種；許多
on the one hand 一方面
on the other hand 另一方面
ask sb. for sth. = ask sb. to do sth. 請求某人做某事
ask sb. not to do sth. 請求某人不要做某事
spend (money) on sth. = spend (money) [in] doing sth. 花錢做某事
sth. cost sb. (money) 某人花錢為了某事
take sb. sometime to do sth. 花某人時間做某事
find out 查明
find sb. doing sth. 發現某人做某事
be angry with sb. 生某人的氣
be angry at sth. 生某事的氣
the same age as = as old as 與某人年齡一樣
have fight with sb. 與某人打架
learn to do sth. 學會做某事
not ... until ... 直到……才……
compare sth.(A) with sth.(B) 把某事(A)與某事(B)作比較
it's time for sth. = it's time to do sth. 到該做某事的時間了
maybe adv. 或許
may be （情態動詞 + 動詞原形）可能是
shall → should 情態動詞 shall 的原形和過去式
pay → paid → paid 動詞 pay 的原形、過去式和過去分詞
Reading Strategy(閱讀方法)
You will learn to use new words better if you use a learner's dictionary. (時刻學著應用新單詞來學習比時刻使用字典這種途徑方法更好。)A bilingual dictionary sometimes gives the wrong meaning for the situation you want. (在某些你需要的場合下，一本雙語字典有時會給你錯誤的解釋。)
Unit 3 What were you doing when the UFO arrived?
重點語法：過去進行時態
do/does 的過去進行時態形式：(was/were) doing
do/does 的過去進行時態的被動語態：(was/were) being done
過去將來時態的肯定句、否定句和疑問句形式：
肯定句例句：I was walking down the street when a UFO landed.
否定句例句：I wasn't walking down the street when a UFO landed.
一般疑問句例句：Were you walking down the street when a UFO landed?
特殊疑問句例句：What were you doing when a UFO landed?
動詞 when 和 while 的選擇：when 後加瞬間動詞，while 後加延續性動詞。
例句：The boy was walking down the street when the UFO landed.
=While the boy was walking down the street, the UFO landed.
感嘆句
結構：(1) How + adj. + the + 主語 + 謂語動詞
=(2) What + (a/an) + [adj.] + n. + 主語 + 謂語動詞
例句：What a beautiful flower [it is]!
=How beautiful the flower is!
What beautiful flowers [they are]!
=How beautiful the flowers are!
重點短語：get out 出去；離開
take off 起飛
run away 逃跑；跑掉
come in 進來
hear about = hear of 聽說
take place 發生
as ... as 像……一樣(eg/ as old as him 像他一樣老)
anywhere = everywhere = here and there 任何地方
think about 考慮
think of 認為
get up = get out of the bed 起床
at the doctor's 在診所
every day 每一天
everyday adj. 日常的
most adj. 大部分
the most 最多的
in space 在太空中
national hero 民族英雄
all over the world = in the world 全世界
Reading Strategy(閱讀方法)
The title can be helpful for you to understand a text. (一篇文章的標題可以幫助你理解整篇文章。)It's also a good idea to read the first sentence of each paragraph before you read. (在閱讀整篇文章之前，閱讀每段的第一句話也是一個很有效的方法。)
Unit 4 He said I was hard-working.
重點語法：賓語從句
結構：主語 + 謂語動詞 + 賓語從句(主語 + 謂語動詞 + 賓語/表語)
例句：----I'm good at English. He says. (改為加賓語從句的復合句)
----He says I'm good at English.
注意：①主句是一般現在時態，賓語從句的時態不受其影響。
例句：He says I'm good at English now.
He says I was good at mathematics when I was young.
②主句是過去時態，賓語從句也要用過去時態。
例句：He said I was good at mathematics when I was young yesterday.
He said I was good at English now yesterday.
③賓語從句是客觀真理時永遠用一般現在時態。
例句：Our teacher says 24 hours make a day.
Our teacher said the sun gives us so many energy yesterday.
④動詞原形不能作主語，必須用其 -ing 形式。
例句：She said helping others changed her life.
重點短語：direct speech 直接引語
reported speech = indirect speech 間接引語
first of all = at first 首先
pass on 傳遞
be supposed to do sth. 應該做某事
be good at = do well in 在某方面做得好
in good health 身體健康
get over 克服
open up 打開
care for = take care of = look after 照料；照顧
not any more = not any longer = no longer 不再
have a cold 感冒
end-of-year exam 年終考試
get nervous 變得緊張
forget to do sth. 忘記做某事（該事未做）
forget doing sth. 忘記做某事（該事已做）
it's + adj. + [for sb.] + to do sth. 做某事[對某人來說]……（加形容詞）
context 上下文
Reading Strategy(閱讀方法)
First read for meaning, not for detail. (首先理解文段的大致意思，不在於文段的細節部分。)You can understand the meaning of a word you don't know from the context. (至於不懂的單詞，你可以通過上下文來尋找它的正確釋義。)
Unit 5 If you go to the party, you'll have a great time!
重點語法：if 引導的條件狀語從句
結構：主句 + if + 條件狀語從句
if + 條件狀語從句 + [(comma)] + 主句
注意：在 if 引導的條件狀語從句中，主句應用將來時態，狀語從句用一般現在時態。
例句：You'll have a great time if you go to the party.
=If you go to the party, you'll have a great time.
重點短語：take away 拿走
around the world = all over the world 在世界各地
make a living 謀生
all the time = always 一直
What's the problem? = What's the matter? = What's wrong? 怎麼了？
in order to do sth. 為了做某事
make sb. do sth. 使得某人做某事（to 省略，該結構是一個不帶 to 的不定式。）
make sb. adj. 使得某人……（加形容詞）
make sb. done 使得某人被做
be famous for 為……而出名
be famous as 作為……而出名
in class 在課堂上
spend ...(time/money) on sth. = spend ...(time/money) in doing sth. 花……（時間/錢）用於做某事
see sb. do sth. 看見某人做某事（強調整個過程）
see sb. doing sth. 看見某人做某事（強調偶然性）
say → said → said 動詞 say 的原形、過去式和過去分詞
tell → told → told 動詞 tell 的原形、過去式和過去分詞
eat → ate → eaten 動詞 eat 的原形、過去式和過去分詞
speak → spoke → spoken 動詞 speak 的原形、過去式和過去分詞
Unit 6 How long have you been collecting shells?
重點語法：現在完成進行時態
do/does 的現在完成進行時態形式：have/has been doing
do/does 的現在完成進行時態的被動語態：have/has been being done
現在完成進行時態所應用的場合：
①某事從過去發生一直持續到現在都在做
②過去發生的動作對現在造成影響
例：我已上了三年初中。
I have been in Junior School for 3 years.
自從那次他與我談過心後，我天天都在進步。
I have been making progress since he talked with me that time.
現在完成進行時態的肯定句、否定句和疑問句形式：
肯定句例句：I have been skating for five hours.
否定句例句：I haven't been skating for five hours.
一般疑問句例句：Have you been skating for five hours?
特殊疑問句例句：How long have you been skating?
注意：瞬間動詞不能和一段時間連用。
例句：你借這本書已經多長時間了？
How long have you been keeping this book?
重點短語：run out of 用完；用盡
by the way 順便說說
be interested in doing sth. 對某事感興趣
more than 比……多
far away 在遠處
would like to do sth. = want to do sth. = feel like doing sth. 想要做某事
send sb. sth. = send sth. to sb. 把某物贈送給某人
in fact 實際上
room 房間（用於可數名詞）；空間（用於不可數名詞）
common → more common → the most common 形容詞 common 的原級、比較級和最高級
Reading Strategy(閱讀方法)
Let your eyes "scan" the text quickly to find details that you're looking for. (在閱讀文章之前，用眼睛「橫掃」整篇文章，快速尋找你需要的文章要點。)You can find information quickly without reading the whole text. (這樣你就不用細讀整篇文章，就能尋找到你需要的一些信息。)
Unit 7 Would you mind turning down the music?
重點語法：mind [one's] doing sth. 介意（某人）做某事
重點短語：not at all 一點也不
turn down 調節使音量變小
right away = in a minute = at once 立刻；馬上
wait in line 排隊等候
cut in line 插隊等候
hasn't = has not
keep ... down 壓低聲音；使緩和
at first = first of all 首先
take care 當心；小心
take care of = care about = look after 關心；照顧
break the rule 違規
obey the rule 遵守規定
put out 熄滅
pick sth. up 撿起某物
wait for sb. 等候某人
depend on 依賴；依靠
get back = return 要回
mean → meant → meant 動詞 mean 的原形、過去式和過去分詞
Reading Strategy(閱讀方法)
As we read, we need to find "topic sentences".(在我們閱讀的時候，我們需要尋找「主題語句」，也就是和文章中心最相關的語句。) These sentences usually gives us a "summary", or overall meaning of each paragraph and help us understand what the paragraph is about.(這些語句通常會給我們一些文章的「概要」，或者每個文段的全部意思，來幫助我們理解段落大意。) After the topic sentence comes more detail and explanation.(當「主題語句」出現後，該段的一些解釋和細節也就會隨之出現。)
Unit 8 Why don't you get her a scarf?
重點語法：詢問別人為什麼要做或者不做某事
why don't you do sth. = why not do sth.
例句：Why don't you get her a camera? = Why not get her a camera?
what about = how about
例句：How about some tennis balls? = What about some tennis balls?
重點短語：fall asleep 入睡
give away 贈送；分發
hear of = hear about 聽說
take an interest in = be interested in 對……感興趣
make friends with 與……交友
make progress 取得進步
keep → kept → kept 動詞 keep 的原形、過去式和過去分詞
feed → fed → fed 動詞 feed 的原形、過去式和過去分詞
fall → fell → fallen 動詞 fall 的原形、過去式和過去分詞
hear → heard → heard 動詞 hear 的原形、過去式和過去分詞
Reading Strategy(閱讀方法)
To understand the important ideas from the text, we must "summarize".(為了了解文段最主要的意圖，我們必須要進行總結。) Do this by answering "who, what, where, why" questions as you read.(在閱讀時，常注意回答時間、地點、人物這些基本要素問題，達到總結的目的。)
Unit 9 Have you ever been to an amusement?
重點語法：現在完成時態
do/does 的現在完成時態形式：(have/has) done
do/does 的現在完成時態的被動語態：(have/has) been done
現在完成時態主要強調過去發生的事情對現在的影響。
例句：我去年去過美國，那是我第一次出國。
I have ever been to America. It's the first time for me to go abroad.
重點短語：have a great time = have a good time = have fun = enjoy oneself 玩得高興
on board 在船上
end up doing sth. 結束做某事
all year round = all over the year 終年
understand → understood → understood 動詞 understand 的原形、過去式和過去分詞
Reading Strategy(閱讀方法)
After reading, write down three or more things you have learned. (在閱讀整篇文章之後，把你學到的三樣或更多事物寫下來。)We always remember things better if we take time to reflect. (如果我們花時間去思考一些問題的話，那麼我們就能更容易地記住一些事情。)
Unit 10 It's a nice day, isn't it?
重點語法：反意疑問句
反意疑問句由肯定陳述句加否定問句構成，或者由否定陳述句加肯定問句構成。
例句：He's a student, isn't he?
She's not his mother, is she?
回答反意疑問句時，要根據事實來回答。若事實是肯定的，則必須用 yes 回答。若事實是否定的，則必須用 no 回答。
例句：你還沒有準備好，對吧？
You're not ready, are you?
是的，我沒有準備好。
No, I'm not.
不，我准備好了。
Yes, I am.
重點短語：look through 瀏覽
come along 出現；發生
get along 相處
at least 至少
at most 至多
a thank-you note 感謝信
forget → forgot → forgotten 動詞 forget 的原形、過去式和過去分詞
little → less → least 形容詞 little 的原級、比較級和最高級
many/much → more → most 形容詞 many/much 的原級、比較級和最高級
英語翻譯123團隊幫您
學習快樂.
及時採納.
7. 初二英語語法知識包括哪些語法
情態動詞的用法
情態動詞用法歸納
情態動詞是一種本身有一定的詞義,但要與不帶to的普通動詞的不定式一起使用，給謂語動詞增添情態色彩，表示說話人對有關行為或事物的態度和看法，認為其可能、應該或必要等。
情態動詞後面加動詞原形。
情態動詞有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情態動詞無人稱和數的變化；不能單獨使用，必須與其後的動詞原形構成謂語
一、 can, could
1) 表示能力（體力、知識、技能）。
Can you lift this heavy box?（體力）
Mary can speak three languages.（知識）
Can you skate?（技能）
此時可用be able to代替。Can只有一般現在時和一般過去式；而be able to則有更多的時態。
I』ll not be able to come this afternoon.
當表示「經過努力才得以做成功某事」時應用be able to，不能用Can。如：
He was able to go to the party yesterday evening in spite of the heavy rain.
2) 表示請求和允許。
-----Can I go now?
----- Yes, you can. / No, you can』t.
此時可與may互換。在疑問句中還可用could,
might代替，不是過去式，只是語氣更委婉，不能用於肯定句和答語中。
---- Could I come to see you tomorrow?
---- Yes, you can. ( No, I』m afraid not. )
3) 表示客觀可能性（客觀原因形成的能力）。
They』ve changed the timetable, so we can go by bus instead.
This hall can hold 500 people at least.
4) 表示推測（驚訝、懷疑、不相信的態度），用於疑問句、否定句和感嘆句中。
Can this be true?
This can』t be done by him.
How can this be true?
二、 may, might
1) 表示請求和允許。might比 may語氣更委婉，而不是過去式。否定回答時可用can』t
或mustn』t，表示「不可以，禁止」。
----Might/ May I smoke in this room?
---- No, you mustn』t.
---- May/Might I take this book out of the room?
---- Yes, you can. (No, you can』t / mustn』t. )
用May I...？征徇對方許可時比較正式和客氣，而用Can I...？在口語中更常見。
2）用於祈使句，表示祝願。
May you succeed!
3) 表示推測、可能性（不用於疑問句）。
might不是過去式，它所表示的可能性比may小。
1．He may /might be very busy now.
2．Your mother may /might not know the truth.
三、 must, have to
1) 表示必須、必要。
You must come in time.
在回答引出的問句時，如果是否定的，不能用mustn』t（禁止，不準），而用needn』t, don』t have to（不必）.
---- Must we hand in our exercise books today?
---- Yes, you must.
---- No, you don』t have to / you needn』t.
2) must是說話人的主觀看法， 而have to則強調客觀需要。Must只有一般現在時， have to 有更多的時態形式。
1． he play isn』t interesting, I really must go now.
2． I had to work when I was your age.
3) 表示推測、可能性（只用於肯定的陳述句）
1． You』re Tom』s good friend, so you must know what he likes best.
2． Your mother must be waiting for you now.
四、 dare, need
1) dare作情態動詞用時, 常用於疑問句、否定句和條件從句中, 過去式形式為dared。
1． How dare you say I』m unfair?
2． He daren』t speak English before such a crowd, dare he?
3． If we dared not go there that day， we couldn』t get the beautiful flowers.
2) need 作情態動詞用時, 常用於疑問句、否定句。在肯定句中一般用must, have to, ought to, should代替。
1．You needn』t come so early.
2. ---- Need I finish the work today?
---- Yes, you must. / No, you needn』t.
3) dare和 need作實義動詞用時， 有人稱、時態和數的變化。在肯定句中，dare後面常接帶to的不定式。在疑問句和否定句中，dare後面可接帶to或不帶to的不定式。而need後面只能接帶to的不定式。
1. I dare to swim across this river.
2. He doesn』t dare (to) answer.
3. He needs to finish his homework today.
五、 shall, should
1) shall 用於第一人稱，徵求對方的意見。
What shall we do this evening?
2) shall 用於第二、三人稱，表示說話人給對方的命令、警告、允諾或威脅。
1. You shall fail if you don』t work hard.(警告)
2. He shall have the book when I finish it.(允諾)
3. He shall be punished.(威脅)
六、 will, would
1) 表示請求、建議等，would更委婉。
Will / Would you pass me the ball, please?
2) 表示意志、願望和決心。
1. I will never do that again.
2. They asked him if he would go abroad.
3) would表示過去反復發生的動作或某種傾向。would表示過去習慣時比used to正式，且沒有「現已無此習慣」的含義。
1. During the vacation, he would visit me every other day.
2. The wound would not heal.
4) 表示估計和猜想。
It would be about ten o』clock when she left home.
七、 should, ought to
1) should, ought to表示「應該」，ought to表示義務或責任，比should語氣重。
1. I should help her because she is in trouble.
2. You ought to take care of the baby.
2) 表示勸告、建議和命令。should, ought to可通用，但在疑問句中常用should。
1. You should / ought to go to class right away.
2. Should I open the window?
3) 表示推測
should , ought to (客觀推測), must(主觀推測)。
1.He must be home by now. (斷定他已到家)
2.He ought to/should be home by now.(不太肯定)
3. This is where the oil must be.(直爽)
4. This is where the oil ought to/should be.(含蓄)