1.clothes, cloth, clothing

clothes 統(tǒng)指各種衣服，謂語(yǔ)動(dòng)詞永遠(yuǎn)是復(fù)數(shù)，cloth 指布，為不可數(shù)名詞 clothing 服裝的總稱，指一件衣服用 a piece of, an article of

2.incident, accident

incident 指小事件, accident 指不幸的事故 He was killed in the accident.

3.amount, number

amount 后接不可數(shù)名詞，number 后接可數(shù)名詞 a number of students

4.family, house, home

home 家，包括住處和家人，house 房子，住宅，family 家庭成員。

My family is a happy one.

5.sound, voice, noise

sound 自然界各種各樣的聲音，voice 人的嗓音，noise 噪音 I hate the loud noise outside.

6.photo, picture, drawing

photo 用照相機(jī)拍攝的照片，picture 可指相片，圖片，電影片，drawing 畫(huà)的畫(huà)

Let's go and see a good picture.

7.vocabulary, word

vocabulary 詞匯，一個(gè)人擁有的單詞量，word 具體的單詞 He has a large vocabulary.

8.population, people

population 人口，人數(shù)，people 具體的人 China has a large population.

9.weather, climate

weather 一天內(nèi)具體的天氣狀況，climate 長(zhǎng)期的氣候狀況

The climate here is not good for you.

10.road, street, path, way

road 具體的公路，馬路，street 街道，path 小路，小徑，way 道路，途徑

take this road; in the street, Show me the way to the museum.

11.course, subject

course 課程(可包括多門(mén)科目)，subject 科目(具體的學(xué)科)a summer course

12.custom, habit

custom 傳統(tǒng)風(fēng)俗，習(xí)俗，也可指生活習(xí)慣，后接 to do，habit 生活習(xí)慣，習(xí)慣成自然，后接 of doing.

I've got the habit of drinking a lot.

13.cause, reason

cause 指造成某一事實(shí)或現(xiàn)象的直接原因，后接 of sth./doing sth，reason 用來(lái)解釋某種現(xiàn)象或結(jié)果的理由，后接 for sth./doing sth.the reason for being late

14.exercise, exercises, practice

exercise 運(yùn)動(dòng)，鍛煉(不可數(shù))，exercises 練習(xí)(可數(shù))，practice(反復(fù)做的)練習(xí)。

Practice makes perfect.

15.class, lesson

作“課”解時(shí)，兩者可以替換。指課文用 lesson.指班級(jí)或全體學(xué)生用 class.Lesson 6; Class 5

16.speech, talk, lecture

speech 指在公共場(chǎng)所所做的經(jīng)過(guò)準(zhǔn)備的較正式的演說(shuō)，talk 日常生活中的一般的談話，講話，lecture

學(xué)術(shù)性的演講，講課 a series of lecture on …

17.officer, official

officer 部隊(duì)的軍官，official 政府官員 an army officer

18.work, job

二者均指工作。work 不可數(shù)，job 可數(shù) a good job。

19.couple, pair

couple 主要指人或動(dòng)物，pair 多指由兩部分組成的東西 a pair of trousers

20.country, nation, state, land

country 側(cè)重指版圖，疆域，nation 指人民，國(guó)民，民族，state 側(cè)重指政府，政體，land 國(guó)土，國(guó)家 The whole nation was sad at the news.

21.cook, cooker

cook 廚師，cooker 廚具 He is a good cook.

22.damage, damages

damage 不可數(shù)名詞，損害，損失; damages 復(fù)數(shù)形式，賠償金 $900 damages

23.police, policeman

police 警察的總稱，后接復(fù)數(shù)謂語(yǔ)動(dòng)詞，policeman 指某個(gè)具體的警察 The police are questioning everyone in the house.

24.problem, question

problem常和困難連系，前面的動(dòng)詞常為 think about, solve, raise，question 常和疑問(wèn)連系，多和ask, answer 連用。

25.man, a man

man 人類，a man 一個(gè)男人 Man will conquer nature.

26.chick, chicken

二者均可指小雞，chicken 還可以當(dāng)雞肉 The chicken is delicious.

27.telegram, telegraph

當(dāng)電報(bào)解時(shí)，telegram 指具體的，telegraph 指抽象的 a telegram, by telegraph

28.trip, journey, travel, voyage

travel 是最常用的，trip 指短期的旅途，journey 指稍長(zhǎng)的旅途，voyage 指海上航行 a three-day trip

29.sport, game

sport 多指戶外的游戲或娛樂(lè)活動(dòng)，如打球，游泳，打獵，賽馬等;game 指決定勝負(fù)的游戲，通常有一套規(guī)則 His favorite sport is swimming.

30.price, prize

price 價(jià)格，prize 獎(jiǎng)，獎(jiǎng)品，獎(jiǎng)金 win the first prize The price is high/low.

31.a number of, the number of

a number of 許多，謂語(yǔ)動(dòng)詞用復(fù)數(shù)。the number of … 的數(shù)目，謂語(yǔ)動(dòng)詞用單數(shù)。The number of students is increasing.

32.in front of, in the front of

in front of 范圍外的前面，in the front of 范圍內(nèi)的前面 In the front of the room sits a boy.

33.of the day, of a day

of the day 每一天的，當(dāng)時(shí)的，當(dāng)代的，of a day 暫時(shí)的，不長(zhǎng)久的 a famous scientist of the day

34.three of us, the three of us

three of us 我們(不止三個(gè))中的三個(gè)，the three of us 我們?nèi)齻€(gè)(就三個(gè)人)The three of us--- Tom, Jack and I went to the cinema.

35.by bus, on the bus

by bus 表手段，方式，不用冠詞，on the bus 表范圍 They went there by bus.

36.for a moment, for the moment

for a moment 片刻，一會(huì)兒，for the moment 暫時(shí)，一時(shí) Thinking for a moment, he agreed.

37.next year, the next year

next year 明年，將來(lái)時(shí)間狀語(yǔ)，the next year 第二年，過(guò)去將來(lái)時(shí)間狀語(yǔ)

He said he would go abroad the next year.

38.more than a year, more than one year

more than a year 一年多，more than one year 超過(guò)一年(兩年或三年等)

39.take advice, take the(one's) advice

take advice 征求意見(jiàn)，take the advice 接受忠告 He refused to take the advice and failed again.

40.take air, take the air

take air 傳播，走漏，take the air 到戶外去，散步 We take the air every day.

41.in a word, in words

in a word 總之，一句話， in words 口頭上 In a word, you are right.

42.in place of, in the place of

in place of 代替，in the place of 在…地方 A new building is built in the place of the old one.

43.in secret, in the secret

in secret 秘密地，暗自地，偷偷地，一般用作狀語(yǔ);in the secret 知道內(nèi)情，知道秘密，一般用作表語(yǔ) My mother was in the secret from the beginning.

44.a girl, one girl

a girl 可泛指所有女孩, one girl 一個(gè)女孩 Can one girl carry such a big box?

45.take a chair, take the chair

take a chair 相當(dāng)于 sit down 坐下，take the chair 開(kāi)始開(kāi)會(huì)

46.go to sea, go to the sea,by sea, by the sea

go to sea 出航或是當(dāng)水手，go to the sea 到海邊去.

by sea表示“經(jīng)海路”； by the sea表示 “在海邊”

47.in charge of, in the charge of

in charge of 管理，負(fù)責(zé)照料， in the charge of 由……照料 He is in charge of the matter.The matter is in the charge of her.

48.in class, in the class

in class 在課上，in the class 在班級(jí)里 He is the best student in the class.

49.on fire, on the fire

on fire 著火, on the fire 在火上 Put the food on the fire.The house is on fire.

50.out of question, out of the question

out of question 毫無(wú)疑問(wèn)的，out of the question 不可能的