1、頻度副詞一、usually, sometimes, always, often等詞在英文中被稱為“頻度副詞”，是用來表示動(dòng)作頻率的，但程度上有別。一般來說可按頻率大小排列： alwaysusuallyoftensometimesseldom（很少）hardly evernever（從不） 頻度副詞的位置1. 在be動(dòng)詞之后。如： She is sometimes very busy. 她有時(shí)很忙。 2. 在第一個(gè)助動(dòng)詞或情態(tài)動(dòng)詞之后。如： I will never forget the first time I met you. 我將永遠(yuǎn)忘不了和你的第一次見面。 3. 在實(shí)義動(dòng)詞之前。如： W

2、e often go there. 我們常去那兒。 4. sometimes也可放在句首、句中或句末，often也可放在句末。如： Sometimes she writes to me. 她有時(shí)候給我寫信。 She writes to me often. 她經(jīng)常給我寫信。 注：如果有兩個(gè)助動(dòng)詞，頻度副詞通常放在第一個(gè)助動(dòng)詞后面。 We have never been invited to one of their parties. 他們聚會(huì),一次也沒邀請(qǐng)過我們。 She must sometimes have wanted to run away. 她有時(shí)候一定想到過要逃走。 用法1. oft

3、en, always, usually等通常和一般現(xiàn)在時(shí)連用，表示現(xiàn)在經(jīng)?；蚍磸?fù)發(fā)生的動(dòng)作。如： It often rains here in April. 這兒四月份常下雨。 2. always與進(jìn)行時(shí)連用時(shí)，并不強(qiáng)調(diào)動(dòng)作正在進(jìn)行，而是表示贊嘆、厭煩等情緒。如： He is always thinking of others. 他總是想著別人。（贊嘆） She is always asking silly questions. 她老是問些愚蠢的問題。（厭煩） 3. 對(duì)這些頻度副詞提問時(shí)，用how often。如： I write to my brother sometimes. How of

4、ten do you write to your brother? 4.情態(tài)動(dòng)詞后動(dòng)詞用原形。 一、頻度副詞位于助動(dòng)詞之前兩種情況 1. 為了表示強(qiáng)調(diào)，頻度副詞有時(shí)也可位于動(dòng)詞be、助動(dòng)詞、情態(tài)動(dòng)詞之前；此時(shí)助動(dòng)詞等應(yīng)重讀。 She always was late. 她老是遲到。 I never can remember. 我永遠(yuǎn)也記不住。 He never should have joined the army. 他根本不應(yīng)當(dāng)參軍。 2. 在簡(jiǎn)略答語中，當(dāng)頻度副詞與動(dòng)詞be、助動(dòng)詞或情態(tài)動(dòng)詞位于句末時(shí)，頻度副詞必須前置。 “Philip is late again.” “Yes, he al

5、ways is.” “菲利普又遲到了?！薄笆堑?，他總是遲到?！?“Can you park your car near the shops?” “Yes. I usually can.” “你可以在商店附近停車嗎?”“是的，通?？梢??！?I know I should take exercise, but I never do. 我知道我應(yīng)該進(jìn)行體育鍛煉，但我從來沒這樣做過。 二、頻度副詞在否定句中的用法 在否定句中，有的頻度副詞位于否定詞之前或之后均可，而有的頻度副詞則必須位于否定詞之后，而還有的頻度副詞卻必須要位于否定詞。大致情況如下： 1. 頻度副詞usually和often可位于否定詞

6、not之前或之后。 他們不常開這樣的晚會(huì)。 正：They dont often hold such parties. 正：They often dont hold such parties. 星期日我們一般不在9點(diǎn)以前起床。 正：We dont usually get up before nine on Sundays. 正：We usually dont get up before nine on Sundays. 在否定句中，頻度副詞用于句中或句首，有時(shí)但會(huì)導(dǎo)致意思不同。 He doesnt usually sleep for two days at a time. 他很少一連睡兩天。 U

7、sually he doesnt sleep for two days at a time. 他連續(xù)兩天不睡覺是常事。 2. 頻度副詞always總是位于否定詞之后，不可位于否定句之前。 Things are not always what they seem to be. 外表往往是靠不住的。 Silence must not always be read as consent. 沉默并不見得一定意味著同意。 3. 頻度副詞sometimes總是位于否定詞之前，不可位于否定詞之后。 Jim is sometimes not very punctual. 吉姆有時(shí)不太準(zhǔn)時(shí)。 Debbie is

8、 sometimes not responsible for what she does. 戴比有時(shí)對(duì)她所做的事不負(fù)責(zé)任。 三、頻度副詞位于句末的用法 1.sometimes?？捎糜诰淠?。 We all get into trouble sometimes. 我們有時(shí)都會(huì)遇到麻煩。 You cant work all the timeit does you good to go out and enjoy yourself sometimes. 你不能總是工作，有時(shí)出去放松一下會(huì)對(duì)你有好處。 2. often有時(shí)可置于句末，但通常會(huì)帶有very, quite, fairly, more, so

9、等修飾語。如： Weve been there quite often. 經(jīng)常去那里。 When I was young, I used to play tennis very often. 我年輕時(shí)經(jīng)常打網(wǎng)球。 Diana used to travel a lot. These days she doesnt go away so often. 戴安娜過去經(jīng)常旅游。最近她不常出門了。 Were not exactly on intimate terms, but we see each other fairly often. 我們雖算不上關(guān)系密切，但還常見面。 注：有時(shí)也可不帶修飾語，但主要

10、見于否定句或疑問句。 He writes to me often. 他經(jīng)常給我寫信。 Do you come here often? 你常來這兒?jiǎn)? I dont come here often. 我不常來這兒。 3. usually有時(shí)也用于句末，其前不用修飾語。 Im not late, usually. 我通常不遲到。 I get paid on Fridays usually. 我通常在星期五領(lǐng)工資。 4. seldom 一般不用于句末，除非其前帶有only, very等修飾。 We go out very seldom. 我們絕少外出。 I play basketball very

11、seldom indeed. 我很少打籃球。 5. always一般不用于句末，偶爾用于句末，此時(shí)它不表法“總是”，而表示“永遠(yuǎn)”。 Ill love you always. 我將永遠(yuǎn)愛你。 另外，有時(shí)用于句末是因?yàn)榫渥佑兴÷缘木壒省?Generally they walked together on Sunday, but not always. 他們一般在星期日一起散步，但并不總是如此。 句中的but not always=but they didnt always walk together on Sunday。 四、頻度副詞位于句首的用法 1. sometimes常可用于句首。 So

12、metimes she comes late. 有時(shí)她來得晚。 Sometimes she didnt agree with me. 有時(shí)她和我意見不一致。 Sometimes we get a lot of rain in August. 有時(shí)在8月份雨水很大。 2. often用于句首時(shí)，通常表示強(qiáng)調(diào)，且其前一般有quite, very修飾。 Very often he comes in late. 他常常遲到。 Quite often the phone rings when Im in the bath. 電話經(jīng)常在我洗澡時(shí)響。 3. usually有時(shí)也用于句首，其前不用修飾語。 U

13、sually I get up early. 我平時(shí)起得早。 Sometimes he comes by bus, but usually he comes by taxi. 有時(shí)他坐公共汽車來，不過他通常還是打的來。 Usually cooking pots have two small handles but pans have one long handle. 通常地深底煮鍋有兩只把手而平底鍋只有一個(gè)長(zhǎng)長(zhǎng)的把手。 4. always一般不用于句首，除非是用在祈使句中。 Always remember this. 請(qǐng)時(shí)刻記住這一點(diǎn)。 Always look in the mirror before starting to drive. 一定要先看看反光鏡再開車。 另外，never也可用于祈使句的句首。 Never tell him the news. 千萬不要告訴他這消息。 Never ask her about her marriage. 決不要問她結(jié)婚的事。 5. 在正式文體中，表示否定意義的副詞seldom, never可位于句首，但此時(shí)其后要用倒裝語序。 Seldom has there been such a happy meeting. 過去很少有過這樣愉快的會(huì)議。 Never did he think the book would be finished so