關于be助動詞的句式.比較全點的.
助動詞be的用法 1) be +現在分詞,構成進行時態,例如:They are having a meeting. 他們正在開會。
English is becoming more and more important. 英語現在越來越重要。2) be + 過去分詞,構成被動語態,例如:The window was broken by Tom.. 窗戶是湯姆打碎的。
English is taught throughout the world. 世界各地都教英語。3) be + 動詞不定式,可表示下列內容: a. 表示最近、未來的計劃或安排,例如: He is to go to New York next week.. 他下周要去紐約。
We are to teach the freshpersons. 我們要教新生。 說明: 這種用法也可以說成是一種將來時態表達法。
b. 表示命令,例如: You are to explain this. 對此你要做出解釋。 He is to come to the office this afternoon. 要他今天下午來辦公室。
c. 征求意見,例如: How am I to answer him? 我該怎樣答復他? Who is to go there? 誰該去那兒呢? d. 表示相約、商定,例如: We are to meet at the school gate at seven tomorrow morning. 我們明天早晨7點在校門口集合。要的是這個嗎?。
倒裝句的句型結構是什么
部分倒裝:。. +助動詞+主+謂
句型為:1 only +狀 +助動詞+主+謂 Only in this way can you succed.
2 否定詞 +助動詞+主+謂 Never will I change my mind.
3 so / such +adj/n +助動詞+主+謂 So fast did he run that I couln't catch up with him.
全部倒裝:謂+主
句型為 1 表+謂+主 Among the speakers was Mr Black.
On the floor is a book.
Gone are the days when I was yong.
2 表方位的副詞+謂+主,謂語為行動的動詞
Here, there, up, down, in, out, off, away
Here comes the bus. There goes the bell.
3 there be句型之類表存在的動詞。live, exist, lie, stand
Long long ago, there lived a king.
There lies a city at the foot of the mountain.
高中英語倒裝句什么情況下用助動詞、be動詞
英語語法中,倒裝句主要有2種,一種為完全倒裝,而另一種為部分倒裝,你所提出的問題屬于后一種。
完全倒裝(Full Inversion):又稱"全部倒裝",是只將句子中的謂語動詞全部置于主語之前。此結構通常只用與一般現在時和一般過去時。
部分倒裝(Partial Inversion):指將謂語的一部分如助動詞或情態倒裝至主語之前。如果句中的謂語沒有助動詞或情態動詞,則需添加助動詞do, does或did,并將其置于主語之前。
下面幾種情況都屬于部分倒裝:
* +狀語或狀語從句置于句首,句子用部分倒裝。
例子:
Only in this way can you solve this problem.
只有用這種方法,你才可以解決這個問題。
Only after he had spoken out the word did he realize he had made a big mistake.
只有當他已經說出那個字后才意識到自己犯了個大錯誤。
2. hardly,in no way,little,scarcely,seldom,never,no more, no longer,not, not only, no sooner, not only … (but also),not until… 等具有否定意義的詞或詞組位于句首,句子用部分倒裝。
例子:
No sooner had I got home than it began to rain.
我剛到家就下起了雨。
Seldom do I go to work by bus.
我很少乘公共汽車上班。
她還沒來得及坐下來,就聽見有人敲門。
Not until twelve o'clock did he go to bed last night .
3. so / such。that結構中的so或such位于句首可以構成部分倒裝句,表示強調so /such和that之間的部分。
例子:
So unreasonable was his price that everybody startled.
他的要價太離譜,令每個人都瞠目結舌。
To such length did she go in rehearsal that the two actors walked out.
她的彩排進行得那么長,以致于那兩個演員都走出去了。
以上各例都用倒裝語序突出了句首成分,其語氣較自然語序強烈,因而具有極佳的修辭效果。
4.為了避免句子部分內容不必要的重復,常用"so+be動詞(助動詞、情態動詞)+主語"或"neither/nor + be動詞(助動詞、情態動詞)+主語"的倒裝句式。
其中第一個句式表示"與前面所述的肯定情況相同",第二個句式表示"與前面所述的否定情況相同"。
例子:
A:His brother is a college student; B:so is mine.(nor is mine .)
A:他弟弟是大學生,B:我弟弟也是。(我弟弟也不是。)
A:He used to have his further study abroad; B:so did I.(neither did I.)