㈠ 數學經營時候一般過去時有什麼區別
過去時分為:過去進行時、一般過去時、過去將來時、過去完成時等等.而一般過去時只是過去時當中的一種類型.
㈡ 有過去式嗎是什麼
feel 英[fi:l] 美[fil]
過去式:felt 過去分詞:felt 現在分詞:feeling
vt.
1.觸, 摸
2.摸索;探索;探尋
3.體會,體驗,感受(一種感情或情況)
4.深感;對…非常敏感
5.意識到,感覺到,自覺,認清
6.以為,認為,想,相信
vt. & vi. & link-v.
1.由觸摸而得知[感覺到]
2.覺得, 認為
n.
1.感覺, 手感
2.觸, 摸
3.直覺
4.摸,觸,感覺,知覺
5.感觸;(事物給人的)感受
6.本能,天性;鑒賞力;鑒別力,本能的鑒賞力
vi.
1.給人某種感覺,(東西)摸上去有某種感覺,摸著是,感覺著是
2.有知覺,感知
3.感覺,意識到
4.同情,憐憫,體諒,共鳴,感動(常與for連用) 及物動詞 vt.
1.觸, 摸
Blind persons can often recognize objects by feeling them.
盲人常憑觸摸識別物體。
2.摸索;探索;探尋
He felt his way across the room when the lights went out.
當燈熄滅時他摸索著走過房間。
3.體會,體驗,感受(一種感情或情況)
4.深感;對…非常敏感
5.意識到,感覺到,自覺,認清
6.以為,認為,想,相信
及物動詞 vt. & 不及物動詞 vi. 系動詞 link-v.
1.由觸摸而得知[感覺到]
Cotton feels soft.
棉花摸上去很柔軟。
2.覺得, 認為
How do you feel today?
今天你感覺怎樣?
名詞 n.
1.感覺, 手感
Don't you like the feel of this material?
難道你不喜歡這種材料的手感嗎?
2.觸, 摸
Let us have a feel inside the bag.
讓我們在袋子里邊摸一摸。
3.直覺
You must develop a feel for words.
你們必須養成用字的直覺。
4.摸,觸,感覺,知覺
5.感觸;(事物給人的)感受
6.本能,天性;鑒賞力;鑒別力,本能的鑒賞力
不及物動詞 vi.
1.給人某種感覺,(東西)摸上去有某種感覺,摸著是,感覺著是
2.有知覺,感知
3.感覺,意識到
4.同情,憐憫,體諒,共鳴,感動(常與for連用)
㈢ 過去式是表示什麼
過去式就是當表示過去發生的事時,謂語動詞要有相應的變化,即變成動詞過去式。
1 一般在動詞的末尾加ed
2 以輔音字母加y 結尾的,把y變i加ed。
3 以重讀閉音節結尾的,且末尾只有一個輔音字母的,要雙寫這個輔音字母,再加ed。
4 以e 結尾的要直接d.
這些只是規則動詞的變化方式,不規則的動詞有很多,得下功夫記。
㈣ 過去式是什麼
過去式是代表一種時態的動詞形態,我們漢語中的動詞沒有變化,而是時間的變化,但英語中時間是過去時間的時候,動詞也要變成相對應的過去式,一般是在詞尾加ed規則請參考相關資料,表示的是這個動作發生在過去
㈤ 一般過去式結構是什麼
希望對你有幫助。(講解+練習)望採納=====
1. 一般過去時通常用來表示過去發生的動作或存在的狀況。如:
--- Where were you last week? 上周你在哪兒?
--- I was at my uncle's home in the countryside. (上周)我在鄉下的叔叔家。
2. 有些情況,發生時間沒有明確標明,但實際上是過去發生的,應用過去時態;另外,在談到已故去的人時,也多用過去時。如:
He bought a cat, and now they are good friends. 他買了一隻貓,現在他們是好朋友了。
Lu Xun was a great writer. 魯迅是一位偉大的作家。
(2)時間狀語
與一般過去時連用的時間狀語有:yesterday(昨天), last night(昨晚), last week(上個星期), four days ago(四天前), in 2002(在2002年), just now(剛才), the day before yesterday(前天)等。如:
He went to the park yesterday. 她昨天去了花園。
I was ten years old in 2001. 我2001年才10歲。
(3)動詞的過去式
在一般過去時態中會涉及到動詞的過去式,大家要掌握規則動詞的過去式的變化規則。其基本的變化規則如下:
① 一般情況下,在動詞原形後直接ed。如:play –played , look –looked 。
② 以e結尾的動詞在其後加d。如:like –liked, use –used。
③ 與輔音字母加y結尾的動詞,把y變成i 再加ed。 如:carry – carried, marry - married。
④ 以重讀閉音節(或r音節)結尾,末尾只有一個輔音字母時,雙寫這個輔音字母,再加ed。如: stop –stopped, prefer –preferred。
當然,剛才提到的都是規則動詞的構成,我們還學過許多不規則動詞的過去式形式。如:am – was, are – were, put – put, see – saw, eat – ate等,這些可需要我們在課下牢牢記住喲
一般過去時態小練習
Ⅰ請寫出下列動詞的過去式。
want arrive enjoy shop
is _ see _ are _ eat
Ⅱ 指出下列句中的一處錯誤,並改正。
1. We go to school early yesterday. _____________________
2. She buys a dress last week. ________________________
3. Did you liked playing football ? ________________________
4.--- Did you have a good trip ? --- No, I did. ______________________
5. I enjoied Chinese very much. __________________
Ⅲ 翻譯下列句子,每空一詞。
1. 你昨晚去哪了?
Where ______ you _______ last night?
2. 我們昨天沒有在學校。
We __________ at school yesterday.
3. 我兩小時前在家裡。
I was at home ______ _______ _______.
4. 你上周六去了動物園嗎?
_______ you ________ to the zoo last Saturday?
5. 我去年不喜歡學數學。
I _________ like learning math last year.
參考答案
【一般過去時小練習】
Ⅰ wanted, arrived, enjoyed, shopped, was, saw, were, ate.
Ⅱ 1. go改為went 2. buys改為bought 3. liked改為like
4. 答語中的did改為didn』t 5. enjoied改為enjoyed
Ⅲ 1. did, go 2. weren』t 3. two hours ago 4. Did, go 5. didn』t
1)到底何時才用一般過去時態?
① 句中有明確的表示過去的時間狀語,表示在過去某個時間發生的動作或情況。如:
I went to school at 7:00 yesterday morning. 我昨天早晨七點去上學。
② 句中有明確的表示過去的時間狀語,表示在過去某個時間存在的狀態。如:
She was not at home last night. 她昨晚八點沒在家。
③ 表示在過去經常或反復發生的動作,常和often(經常)、always(總是)、sometimes
(有時)等表示頻率的時間狀語連用。如:
He often had lunch at school last month. 他上個月經常在學校吃午飯。
④ 表示已故的人所做的事情或情況。如:
Ba Jin wrote a lot of novels for us.巴金寫了很多部小說。
2)動詞過去式後的ed到底發什麼音?
規則動詞過去式後的「ed」讀音時不一樣的。那麼,有什麼不一樣呢?有這么幾句口訣:「清讀清,濁讀濁,母音結尾還讀濁,/t/、/d/之後讀/id/。」怎麼樣,理解嗎?聽我娓娓道來:「清讀清」,是指動詞以清輔音結尾,那麼加的「ed」讀作清輔音/t/,如asked /a:skt/,missed /mist/ 等;動詞以濁輔音或母音結尾,那麼加的「ed」讀作濁輔音/d/,如cleaned /kli;nd/,lived /livd/,played /pleid/ 等;動詞以 /t/ 或 /d /結尾,那麼加的「ed」讀作濁輔音/id/,如started /sta:tid/,studied /sta:did/ 等。
【趁熱打鐵】
一般過去時態小練習
Ⅰ請用正確動詞形式填空。
1. I _________ an exciting party last weekend. (have)
2. She _______ at home yesterday morning. (is)
3. Tommy __________ TV at his uncle』s last night.(watch)
4. They all _________ to the mountains yesterday morning. (go)
5. My friend, Carol, ________for the math test yesterday evening. (study)
Ⅱ 翻譯下列句子。
6. 你昨天在哪兒呢?
Where ________ you yesterday?
7. 詹妮喜歡看書。昨晚她看了一本英語書。
Jenny likes reading books. She _________ an English book last night.
8. 上周六他做什麼了?他和媽媽去購物了。
--- What ________ he _________ last Saturday?
--- He _________ shopping with his mother.
9. 雷鋒經常幫助其他人。
Lei Feng often ________ other people.
10. 我上周沒有給你寫信。
I ________ ________ to you last week.
Ⅲ 按照括弧中的要求改寫句子。
11. Lucy did her homework at home.(改否定句)
Lucy ___________ ___________ her homework at home.
12. She found some meat in the fridge.(變一般疑問句)
___________ she __________ ___________ meat in the fridge?
13. She stayed there for a week.(對劃線部分提問)
__________ ___________ __________ she __________ there?
14. There was some orange in the cup.(變一般疑問句)
_________ there ___________ orange in the cup?
15. Li Ming is at school now. (用yesterday 改寫句子)
Li Ming _______ at school yesterday.
參考答案
【一般過去時小練習】
Ⅰ1. had 2. was 3. watched 4. went 5. studied
Ⅱ 6. were 7. read 8. did, do, went 9. helped 10. didn』t write
Ⅲ 11. didn』t do 12. Did, find any 13. How long did, stay 14. Was there 15. was
㈥ 什麼叫做過去式
過去式是英語語法的一種,表示過去某個時間里發生的動作或狀態。一般過去式的動詞通常用動詞的過去式形式來表示,而動詞的過去式是在動詞原形的基礎上變化的。動詞的過去式可分為規則動詞和不規則動詞。
過去式:1、表示過去某個時間里發生的動作或狀態;2、過去習慣性、經常性的動作、行為;過去主語所具備的能力和性格。
比如 : A:What did you do last weekend? B:I played football. A:Did you read books? B:Yes,I did.
變化規則:
(1)一般情況下,動詞詞尾加 ed ,如: worked played wanted acted (2)以不發音的 e 結尾動詞,動詞詞尾加 d,如: lived moved decided declined hoped judged raised wiped (3)以輔音字母 + y結尾的動詞,把y變為i 再加ed,如: studied tried copied justified cried carried embodied emptied (4)以一個輔音字母結尾的重讀閉音節動詞,雙寫詞尾輔音字母,再加 ed,如: stopped begged fretted dragged dropped planned dotted dripped (5)註:不規則動詞的過去式變化規律性不強,須多加記憶。 go - went,make - made,get - got ,buy - bought ,come - came ,fly-flew ,is/am-was,are-were ,see-saw ,bring-brought,do-did,teach-taught, think-thought, say-said,sit-sat. read-read, spend-spent, eat-ate,give-gave,sit-sat,tell-told,write-wrote,feel-felt,find-found,hear-heard,know-knew, put-put,grow-grew,take-took,catch-caught,come-came,become-became,swim-swam,sweep—swept,sing—sang,draw—drew,
不規則的:
be was/were been
begin began begun
bring brought brought
buy bought bought
catch caught caught
come came come
cut cut cut
do did done
draw drew drawn
drink drank drunk
drive drove driven
eat ate eaten
feel felt felt
fight fought fought
find found found
fly flew flown
get got got
give gave given
go went gone
grow grew grown
have had had
hear heard heard
know knew known
leave left left
lose lost lost
make made made
meet met met
put put put
read read read
ride rode ridden
ring rang rung
rise rose risen
run ran run
say said said
see saw seen
sell sold sold
send sent sent
set set set
shut shut shut
sing sang sung
sit sat sat
sleep slept slept
speak spoke spoken
spend spent spent
stand stood stood
swim swam swum
sweep swept swept
take took taken
teach taught taught
tell told told
think thought thought
throw threw thrown
understand understood understood
wear wore worn
write wrote written
不懂的再問我.祝學習進步!
㈦ maths,lived,talked哪一個不是同類詞
maths 是名詞,數學的意思。
而lived和talked都是動詞的過去式。
因此maths不同類。
㈧ 他善長數學英文過去式怎麼寫有人會嗎請告訴我,謝謝
He was good at math.
㈨ 數學中的log是什麼意思
log在高中數學里表示對數。
一般地,函數y=logax(a>0,且a≠1)叫做對數函數,也就是說以冪(真數)為自變數,指數為因變數,底數為常量的函數,叫對數函數。
通常我們將以10為底的對數叫常用對數(common logarithm),並把log10N記為lgN。另外,在科學計數中常使用以無理數e=2.71828···為底數的對數,以e為底的對數稱為自然對數(natural logarithm),並且把logeN記為In N。
2、恆等式及證明
a^log(a)(N)=N (a>0 ,a≠1)
對數公式運算的理解與推導by尋韻天下(8張)
推導:log(a) (a^N)=N恆等式證明
在a>0且a≠1,N>0時
設:當log(a)(N)=t,滿足(t∈R)
則有a^t=N;
a^(log(a)(N))=a^t=N。