第一篇：leave的幾種特殊用法
“there be”句型的幾種特殊用法
There be 句型的幾種特殊結構及其用法
There be句型是一種應用十分廣泛和頻繁的句型。但是對there be句型的多變的特點及其特殊結構的復雜性，并不是每個考生都熟悉了解。在大學英語四級考試題中也常常遇到這一句型結構的試題。
例如： Ann never dreams of _________ for her to be sent abroad very soon.(CET-4，1998.6-43) A)there to be a chance B)there being a chance C)there be a chance D)being a chance 該題的答案為B)。
動詞 dream of 要求跟 V-ing 分詞結構作賓語，更準確地講是介詞of后要求跟 V-ing 分詞結構作賓語，there being a chance意為"有一個機會";A)和C)兩項均不符合句子結構的要求，所以不是答案選項，而D)項 being a chance 雖然是 V-ing 分詞結構，但語義不通，故不能雪
又如： No one had told Smith about ____ a lecture the following day.(CET-4，2001.1-66) A)there beB)there would be C)there wasD)there being 該題的答案為D)。介詞 about 后要求跟 V-ing 分詞結構作賓語，there being(a lecture)意為"有(一個講座)"，而A)、B)和C)項內容均不符合結構要求，故不能雪再如：
It is fairly common in Africa for there to be an ensemble of expert musicians surrounded by others who join in by clapping，singing，or somehow adding to the totality of musical sound.(CET-4，1995.1)
該句子中出現了for there to be 的結構，如果按照上一題的解題思路去理解：介詞后要求跟 V-ing 分詞結構作賓語，那么，這一結構似乎是錯的;但是，實際上此結構沒有錯，此處只能夠用 for there to be，而不能用 there being。為什么呢?這就是本文想要解答的問題：there be 句型的特殊結構及其用法。筆者將 there be 句型的幾種特殊結構及其用法進行歸納、總結如下，供讀者參考。
一、there be句型與各種情態動詞連用。 例如： There must be something wrong here.
There might still be some vacant seats in the rear.
There ought to be something with which to fill your stocking.
二、there be句型中的謂語動詞be被be likely to be，happen to be，seem(to be)， occur等代替，用來描寫事物。例如： ] There are likely to be more difficulties than they have been prepared for. There happened to be nobody in the room.
There doesn’t seem to be much hope of our beating that team .
There seems no doubt that the general character of the landscape，the relative length of day and night，and the climate must all play a big part in determining what kind of people we are. There have occurred many great changes since we met last.
三、there be 句型中的謂語動詞be被一些不及物動詞代替，如 live，stand，exist，remain等，用來表示"靜止、存在、有"。例如：
There lives a family of five in the village. There remains nothing more to be done.
There stands the Monument to the People’s Heroes at the center of the Tian’anmen Square. There exist different opinions on this question.
四、there be 句型中的謂語動詞be被一些不及物動詞代替，如 come，spring up，appear，emerge，arrive，enter，follow, 等，用來表示"突然出現"。例如：
- 1
結構的邏輯主語。
又如：
There having been a strong suspicion against the ability of the director，the department asked him to resign.("there being +賓格詞"作原因狀語)
There being nothing to be done，they have to go back home.("there being +賓格詞"作原因狀語)
There being no further business，the chairm an closed the meeting.("there being +賓格詞"作原因狀語)
3."there being +賓格詞"在句中作主 語。例如：
There being a bus stop so near the house is a great advantage.
"there being +賓格詞"結構在句中作主語，句中的賓格詞a bus stop作"there being" V-ing分詞短語結構的邏輯主語。
七、there be 句型中 be 用 be +V-ed 分詞，形成"there be +V-ed分詞+賓格詞"結構，表示"有"或"存在(某種情況)"，在"there be +V-ed 分詞+賓格詞"的結構中，主語是賓格詞。例如： There was found a lot of food in the kitchen cupboard.
There are now published millions of books every year in China. There was shown at the exhibition an electronic computer made in Shanghai.
八、"there be no +主語名詞"的習慣用法。
1.V-ing分詞在"there be no"結構中作主語，表示"不可能"、"無法"。例如： There is no denying the fact that China is still a developing country. There is no joking about such matters.
There is no telling what will happen to him next.
2.there is no point +V-ing分詞，表示"沒有必要"，"無用"，"沒有意義"，"沒有用處"。例如： We are disappointed with the new officer elected in our bridge club，but thereis no point worrying about it.
3.there is no use +V-ing分詞，表示"無用"，"沒有意義"，"沒有用處"。例如： There is no use advising him to give up smoking.
4.there is no good +V-ing分詞，表示"無用"，"沒有意義"，"沒有用處"，"沒有益處"。例如： There is no good discussing the matter with such a fool.
九、在由"there be +主語名詞"引起的句子中，修飾主語的情況。
1.在由"there be +主語名詞"引起的句子中，用來修飾主語的不定式可以用被動形式，也可以用主動形式。例如：
There is no time to lose /to be lost.
There are still many things to take care of /to be taken care of. 在口語中多用主動形式。但是有時候兩種形式可能表示不同的意思。試比較：
There is nothing to do now.(We have nothing to do now.) There is nothing to be done now.(We can do nothing now.) There is nothing to see(nothing worth seeing). There is nothing to be seen(nothing there at all).
2.在由"there be +主語名詞"引起的句子中，用來修飾主語的分詞或分詞短語在意思上相當于一個定語從句。例如：
There were 200children studying(=who were studying)music，dancing，or dramatics. Is there anything planned(=that has been planned)for tonight?
第二篇：【原】android 中定時器的幾種用法總結
在android中，經常用到的定時器主要有以下幾種實現：
一、採用Handler與線程的sleep(long )方法
二、採用Handler的postDelayed(Runnable, long) 方法
三、採用Handler與timer及TimerTask結合的方法。
下面逐一介紹：
一、採用Handle與線程的sleep(long )方法
Handler主要用來處理接受到的消息。這只是最主要的方法，當然Handler裡還有其他的方法供實現，有興趣的可以去查API，這裡不過多解釋。
1.定義一個Handler類，用於處理接受到的Message.
Handler handler = new Handler() {
};
2.新建一個實現Runnable接口的線程類。如下：
public class MyThread implements Runnable{} @Override public void run() {} // TODO Auto-generated method stub while (true) {} try {} Thread.sleep(10000);//線程暫停10秒，單位毫秒 Message message=new Message(); message.what=1; handler.sendMessage(message);//發送消息 // TODO Auto-generated catch block e.printStackTrace(); public void handleMessage(Message msg) {} //要做的事情 super.handleMessage(msg); } catch (InterruptedException e) {
3.在需要啟動線程的地方加入下面語句：
new Thread(new MyThread()).start();
4.啟動線程後，線程每10s發送一次消息。
二、採用Handler的postDelayed(Runnable, long) 方法
這個實現比較簡單一些：
1.Handler handler=new Handler();
Runnable runnable=new Runnable(){}; @Override public void run() {} // TODO Auto-generated method stub //要做的事情 handler.postDelayed(this, 2000);
2.啟動計時器：
handler.postDelayed(runnable, 2000);//每兩秒執行一次runnable.
3.停止計時器：
handler.removeCallbacks(runnable);
三、採用Handler與timer及TimerTask結合的方法。
1.定義定時器、定時器任務及Handler句柄
private final Timer timer = new Timer(); private TimerTask task; Handler handler = new Handler() {}; @Override public void handleMessage(Message msg) {}// TODO Auto-generated method stub //要做的事情 super.handleMessage(msg);
2.初始化計時器任務。
task = new TimerTask() {
}; @Override public void run() {} // TODO Auto-generated method stub Message message = new Message(); message.what = 1; handler.sendMessage(message);
3.啟動定時器
timer.schedule(task, 2000, 2000);
簡要說一下上面三步提到的一些內容。
1.定時器任務(TimerTask)顧名思義，就是說當定時器到達指定的時間時要做的工作，這裡是想Handler發送一個消息，由Handler類進行處理。
2. java.util.Timer.schedule(TimerTask task, long delay):這個方法是說，dalay/1000秒後執行task.只執行一次。
java.util.Timer.schedule(TimerTask task, long delay, long period)：這個方法是說，delay/1000秒後執行task,然後進過period/1000秒再次執行task，這個用於循環任務，執行無數次，當然，你可以用timer.cancel();取消計時器的執行。
一個網友說到了CountDownTimer這個類，從名字上面大家就可以看出來，記錄下載時間。將后臺線程的創建和Handler隊列封裝成為了一個方便的類調用。
查看了一下官方文檔，這個類及其簡單，只有四個方法，上面都涉及到了onTick，onFinsh、cancel和start。其中前面兩個是抽象方法，所以要重寫一下。
下面是官方給的一個小例子：
1 new CountdownTimer(30000, 1000) {
2public void onTick(long millisUntilFinished) {
mTextField.setText("seconds remaining: " + millisUntilFinished 3 / 1000);
4}
5public void onFinish() {
6mTextField.setText("done!");
7}
8}.start(); 主要是重寫onTick和onFinsh這兩個方法，onFinish()中的代碼是計時器結束的時候要做的事情;
onTick(Long m)中的代碼是你倒計時開始時要做的事情，參數m是直到完成的時間，構造方法MyCount()中的兩個參數中，前者是倒計的時間數，后者是倒計每秒中間 的間隔時間，都是以毫秒為單位。例如要倒計時30秒，每秒中間間隔時間是1秒，兩個參數可以這樣寫MyCount(30000,1000)。 將后臺線程的創建和Handler隊列封裝成為了一個方便的類調用。
/**
* Cancel the countdown.
*
* Do not call it from inside CountDownTimer threads
*/
public final void cancel() {
mHandler.removeMessages(MSG);
mCancelled = true;
}
當你想取消的時候使用mc.cancel()方法就行了,但是不能在CountDownTimer線程的內部調用此方法，要在線程外部使用，使用cancel方法取消後，如果再次調用start方法的話倒計時會重新開始。
希望對你有所幫助。請尊重原創，這裡是ljlkings的空間。
第三篇：There be句型的幾種特殊結構
There be 句型的幾種特殊結構及其用法
Ann never dreams of _________ for her to be sent abroad very soon.
A)there to be a chance B)there being a chance C)there be a chance D)being a chance
該題的答案為B)。 動詞 dream of 要求跟 V-ing 分詞結構作賓語，更準確地講是介詞of后要求跟 V-ing 分詞結構作賓語，there being a chance意為"有一個機會" 又如：No one had told Smith about ____ a lecture the following day. A)there beB)there would be C)there wasD)there being
D)。介詞 about 后要求跟 V-ing 分詞結構作賓語，there being(a lecture)意為"有(一個講座)"，
It is fairly common in Africa for there to be an ensemble of expert musicians surrounded by others who join in by clapping，singing，or somehow adding to the totality of musical sound.
該句子中出現了for there to be 的結構，如果按照上一題的解題思路去理解：介詞后要求跟 V-ing 分詞結構作賓語，那么，這一結構似乎是錯的;但是，實際上此結構沒有錯，這就是本文想要解答的問題：there be 句型的特殊結構及其用法。
一、there be句型與各種情態動詞連用。
例如：There must be something wrong here.
There might still be some vacant seats in the rear.
There ought to be something with which to fill your stocking.
二、there be句型中的謂語動詞be被be likely to be，happen to be，seem(to be)， occur等代替，用來描寫事物。例如：
There are likely to be more difficulties than they have been prepared for.
There happened to be nobody in the room.
There doesn’t seem to be much hope of our beating that team .
There seems no doubt that the general character of the landscape，the relative length of day and night，and the climate must all play a big part in determining what kind of people we are.
There have occurred many great changes since we met last.
三、there be 句型中的謂語動詞be被一些不及物動詞代替，如 live，stand，exist，remain等，用來表示"靜止、存在、有"。例如：
There lives a family of five in the village.
There remains nothing more to be done.
There stands the Monument to the People’s Heroes at the center of the Tian’anmen Square.
There exist different opinions on this question.
四、there be 句型中的謂語動詞be被一些不及物動詞代替，如 come，spring up，appear，emerge，arrive，enter，follow, 等，用來表示"突然出現"。例如：
There appears to be no substitute for this stuff yet.
第 1 頁 共 4 頁 There came a company of actors and actresses.
There followed a spirited discussion after class.
五、there be句型中be用不定式，形成"(for)there to be +賓格詞"結構，表示"有"或"存在(某種情況)"，在"(for)there to be +賓格詞"的結構中，主語是賓格詞。這種不定式結構在句中作邏輯賓語、狀語和主語。
1."there to be +賓格詞"在句中作賓語。例如：
The students expected there to be more reviewing classes before the final exams.
there to be +賓格詞"結構在句中作動詞expect的賓語，句中的賓格詞m ore review- ing classes作"there to be"不定式結構的邏輯主語。特別應該注意的是there后的不定式只能用"to be"的形式，因為這種不定式結構是從"there be"結構轉化而來的。又如：
People don’t want there to be anotherwar.
Members like there to be plenty of choice.
It is fairly common in Africa for there to be an ensemble of expert musicians surrounded by others who join in by clapping，singing，or somehow adding to the totality of musical sound.
"there to be +賓格詞"結構在句中作介詞for的賓語，句中的賓格詞an ensemble of expert musicians 作"there to be"不定式結構的邏輯主語。
2."for there to be +賓格詞"在句中作狀語。例如：
It isn’t cold enough for there to be a frost tonight，so I can leave Jim ’s car out quite safely.("for there to be +賓格詞"作結果狀語)
特別應該注意的是，"for there to be +賓格詞"在句中作狀語時必須用介詞 for引出 there be 后面的賓格詞。又如： For there to be successful communication， there must be attentiveness and involvement in the discussing itself by all present.("for there to be +賓格詞"作目的狀語) They planned for there to be another meeting.("for there to be +賓格詞"作目的狀語)
3."there to be +賓格詞"在句中作主語。例如：
It’s a great pity for there to be much trouble in the company. 特別應該注意的是，
"for there to be +賓格詞"在句中作主語時必須用介詞for引出 there be后面的賓格詞。又如： It is impossible for there to be any more apples.
For there to be so few people in the streets was unusual.
六、there be句型中be用V -ing分詞，形成"(of)there being +賓格詞"結構，表示"有"或"存在(某種情況)"，在"(of)there be- ing +賓格詞"的結構中，主語是賓格詞。
1."there being +賓格詞"在句中作賓語。例如：
Have you ever thought of there being so many work units for you to choose on the talent’s meeting?("there being +賓格詞"作賓語)
"there being +賓格詞"結構在句中作介詞of的賓語，句中的賓格詞so m any work u- nits作"there being"V-ing分詞短語結構的邏輯主語。又如：
No one had told him anything about there being a beautiful story about the lake. John was relying on there being another opportunity.
2."there being +賓格詞"在句中作狀語。例如：
There being no cause for alarm ，she went back to her bedroom.("there being +賓格詞"作原
第 2 頁 共 4 頁 因狀語)
"there being +賓格詞"結構在句中作狀語，句中的賓格詞no cause作"there being" V-ing分詞短語結構的邏輯主語。又如：
There having been a strong suspicion against the ability of the director，the department asked him to resign.("there being +賓格詞"作原因狀語)
There being nothing to be done，they have to go back home.("there being +賓格詞"作原因狀語)
There being no further business，the chairm an closed the meeting.("there being +賓格詞"作原因狀語)
3."there being +賓格詞"在句中作主 語。例如：
There being a bus stop so near the house is a great advantage.
"there being +賓格詞"結構在句中作主語，句中的賓格詞a bus stop作"there being" V-ing分詞短語結構的邏輯主語。
七、there be 句型中 be 用 be +V-ed 分詞，形成"there be +V-ed分詞+賓格詞"結構，表示"有"或"存在(某種情況)"，在"there be +V-ed 分詞+賓格詞"的結構中，主語是賓格詞。例如：
There was found a lot of food in the kitchen cupboard.
There are now published millions of books every year in China.
There was shown at the exhibition an electronic computer made in Shanghai.
八、"there be no +主語名詞"的習慣用法。
1.V-ing分詞在"there be no"結構中作主語，表示"不可能"、"無法"。例如：
There is no denying the fact that China is still a developing country.
There is no joking about such matters.
There is no telling what will happen to him next.
2.there is no point +V-ing分詞，表示"沒有必要"，"無用"，"沒有意義"，"沒有用處"。例如： We are disappointed with the new officer elected in our bridge club，but there is no point worrying about it.
3.there is no use +V-ing分詞，表示"無用"，"沒有意義"，"沒有用處"。例如：
There is no use advising him to give up smoking.
4.there is no good +V-ing分詞，表示"無用"，"沒有意義"，"沒有用處"，"沒有益處"。例如： There is no good discussing the matter with such a fool.
九、在由"there be +主語名詞"引起的句子中，修飾主語的情況。
1.在由"there be +主語名詞"引起的句子中，用來修飾主語的不定式可以用被動形式，也可以用主動形式。例如：
There is no time to lose /to be lost.
There are still many things to take care of /to be taken care of. 在口語中多用主動形式。但是有時候兩種形式可能表示不同的意思。試比較：
There is nothing to do now.(We have nothing to do now.)
There is nothing to be done now.(We can do nothing now.)
There is nothing to see(nothing worth seeing).
There is nothing to be seen(nothing there at all).
第 3 頁 共 4 頁 2.在由"there be +主語名詞"引起的句子中，用來修飾主語的分詞或分詞短語在意思上相當于一個定語從句。例如：
There were 200children studying(=who were studying)music，dancing，or dramatics.
Is there anything planned(=that has been planned)for tonight?
第 4 頁 共 4 頁
第四篇：leave用法之我見
在初中階段，leave 用法有四種，你想知道嗎?Ms Gao告訴你，請聽好!
1. leave(vt)譯“離開”。構成的公式：leave+地點名詞eg.
1) We______( leave )school at 5:00 in the afternoon. 我們下午5點放學。
2) They ______ just ______(leave) Tian’anmen Square.他們剛剛離開天安門。
2. leave 與forl連用，leave譯“動身”，構成的公式：leave(vi)for+地點名詞 譯
“動身去某地” eg.
He_______ ________ ________(將動身去)London next week.=He _______ ______ _________London.
3. leave(vt)+sth+表地點的介詞短語譯“把某物忘在某地”切記：不能用
forget,eg.
I left my English book in the classroom yesterday.昨天我把我的英語書忘在教室里。
4.leave譯為“留(保留)”，構成的公式：leave(vt)+sb +sth=leave+sth+to sb把某物留給某人
此時leave叫“雙賓語動詞”，且leave必須與to搭配。eg.
I left my clothes to him.=I left________ ________ ________.我把衣裳留給了他。
Key:略。
第五篇：It的特殊用法
一、作形式主語
1．（1）It’s + adj.+ to do sth.
It’s important to study English well.
(2 ) It’s + adj. +that…
It’s important/ necessary/ likely/ possible/ certain/…that…
It’s likely that he will win the game.
It’s certain that he will come this afternoon. 2. It’s + v-ed + that…
(1) It’s said/ thought/ believed/ supposed/ reported/ proved/ known…that…
It’s known that the earth travels round the sun.
= As is known to everybody, the earth travels the sun.
= What is known to everybody is that the earth travels the sun. (2) It’s suggested/ advised/ proposed/ requested/ required/ insisted/ commanded/ demanded/ ordered/…that…
It’s suggested that she（should）finish her homework this afternoon. It’s required that I (should) go at once.
3. (1) It’s + 名 +that…
常見的名詞有：a pity, a fact, an idea, an honor, no wonder等
It’s a pity that he can’t come to the party.
It’s a fact that he didn’t pass the exam.
It’s a good idea that we’ll go outing.
It’s an honor that I was invited to the meeting.
(It’s)no wonder (that) he always takes the first place in the exams.
(2) It’s + 名 +doing
常見的名詞有：use, good
It’s no use crying.
It’s no good crying over spilt milk.
【諺語】牛奶溢了，哭也沒用。（覆水難收）
4. It + 動 + that…
常見的動詞有：happen, seem, matter 等 It happened that I hadn’t money with me. It seemed that he had known the fact.. Does it matter that he doesn’t come..
二、作形式賓語
1. 用于復合結構，可以用一句話“沒克服它”來記憶如下六個動詞：make,
consider, feel, find, think, take. He made it clear that he was not interested in English . He considered it a good idea to go outing with me. I feel it a great honor to be invited to speak here. I find it very interesting to study English. I think it no use arguing with her. I took it for granted that he would give me some help.
2. 用于表示喜好的動詞：like, dislike, hate, appreciate 等。
I hate it when people talk with their mouths full.
I like it in the autumn when the weather is clear.
I’d appreciate it if you would like to teach me how to use the computer.
三、it 的幾個特殊結構
1. make it (1) 表示“成功、做到、趕上”
——The train is to leave in five minutes. ——We will never make it.
2 We can’t make it to the other shore in cold weather. (2) 表示“確定時間”
——When shall we meet? ——Let’s make it next Sunday. 2. as it is (1) 用于句首，表示“事實上”
I thought he would get better, but as it is he is getting worse.
(2) 用于句尾，表示“照原樣”
Leave the chair as it is. 3. see (to it) that… 注意、留神、負責、保證
See to it that everything is ready. 4. rely on it that…信任、對。。。。。。有信心
You may rely on it that she won’t be late. 你可以放心，她不會遲到的。
四、it 的幾個特殊句型
1. It is/was + 時間狀語 + that…
強調句
It was at seven o’clock that I went to work yesterday. 2. (1) It was + 時間點 + when 從句 （一般過去時 ）
(2) It will be + 時間點 + when 從句 （一般現在時） It was 9 o’clock when they arrived at the factory. 【注意】這一句型中的時間只能是表示時間點的名詞，前面不能有介詞。
It will be July 1 when we meet again. It is on July 1 that we will meet again. 3. (1) It is/has been + 時間段 +since 從句 （一般過去時）
It is/has been three years since he joined the army.
(2) It was + 時間段 + since 從句 （過去完成時）
It was three days since he had fallen ill.
他生病已經有三天了。
【注意】這一句型since 從句中的謂語動詞如果是延續性動詞，則翻譯成“不做某事多久了”。
It is years since I taught in this school.
我離開這所學校已經幾年了。
It is years since I worked in that factory.
我不在那個工廠幾年了。
It is years since I lived in this city.
我離開這個城市已經幾年了。
It is years since I enjoyed myself so much.
我好幾年沒玩的這樣痛快了。
4.（1）It was + 時間段 +before 從句（一般過去時）
It was three days before I knew the result. (2）It will be + 時間段 + before 從句（一般現在時）
It will be three days before I know the result.
【注意】（1）時態要一致，before 從句只有一般現在時和一般過去時兩種時態。
（2）翻譯成“過多久才/就。。。。。。”
5. (1) It is the first time + that 從句（現在完成時）
It is the first time that I have spoken in public. （2） It was the first time + that 從句（過去完成時）
It was the first time that I had spoken in public. 6． It is (high/about ) time + that從句（一般過去時）
It’s time that I went to work. =It’s time that I should go to work.=It’s time for me to go to work.