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疑問詞のWhy - 英文法を覚えよう

【Whyとは何か?】

Whyは疑問詞の一つで、「なぜ」という意味を表す単語です。日本語で疑問を表す際によく使われる単語ですね。

例文:
Why are you studying English?(なぜ英語を勉強していますか?)
解説: この例文では、「なぜ」の理由を尋ねるために「Why」が使われています。

Why did you go to the park?(なぜ公園に行ったのですか?)
解説: この例文では、「なぜ」の理由を尋ねるために「Why」が使われています。

日本語と同じように、英語でも「なぜ」という疑問を尋ねる際には「Why」を使います。

【Why+be動詞の疑問文】

次は「Why+be動詞の疑問文」について解説します。この形式の疑問文は、「なぜ〜ですか。」という意味を表します。

例文:
Why are you tired?(なぜ疲れていますか?)
解説: この例文では、「なぜ」の理由を尋ねるために「Why」を使い、be動詞の「are」を使って疑問文を作っています。

Why is the sky blue?(なぜ空は青いですか?)
解説: この例文では、「なぜ」の理由を尋ねるために「Why」を使い、be動詞の「is」を使って疑問文を作っています。

この形式の疑問文では、なぜある状態が起こっているのか、なぜある特徴があるのかといった理由を尋ねることができます。

【Why+一般動詞の疑問文】

次は「Why+一般動詞の疑問文」について解説します。この形式の疑問文は、「なぜ〜か。」という意味を表します。

例文:
Why did you eat pizza for dinner?(なぜ夕食にピザを食べたのですか?)
解説: この例文では、「なぜ」の理由を尋ねるために「Why」を使い、過去形の動詞「ate」を使って疑問文を作っています。

Why do you like playing soccer?(なぜサッカーが好きなのですか?)
解説: この例文では、「なぜ」の理由を尋ねるために「Why」を使い、現在形の動詞「do」を使って疑問文を作っています。

この形式の疑問文では、なぜある行動をしたのか、なぜある好みがあるのかといった理由を尋ねることができます。

【Why don't you+動詞+〜?】
それでは、最後に「Why don't you+動詞+〜?」という表現について解説します。この形式は、他人に対して提案やアドバイスをする際に使われ、「〜してみてはどうですか。」という意味を表します。

例文:

Why don't you try playing the guitar?(ギターを弾いてみてはどうですか?)
解説: この例文では、「〜してみてはどうですか」という提案をするために、「Why don't you」を使い、動詞の「try playing」を組み合わせています。

Why don't you go on a trip during the holidays?(休暇中に旅行してみてはどうですか?)
解説: この例文では、「〜してみてはどうですか」という提案をするために、「Why don't you」を使い、動詞の「go on a trip」を組み合わせています。

この形式の表現では、相手に対してアイデアや経験を積むための提案をすることができます。相手に対して積極的な提案をしたい場合に便利な表現ですね。
中学1年生中学2年生中学3年生
文の成り立ち文の要素人称代名詞指示代名詞不定代名詞名詞と名詞句名詞の複数形冠詞be動詞一般動詞の現在形一般動詞の3単現助動詞のcan助動詞のmust助動詞のmay疑問詞のHow疑問詞のWhat疑問詞のWhere疑問詞のwhen疑問詞のWhich疑問詞のWho疑問詞のWhy形容詞副詞前置詞間投詞と感嘆文命令文Let’s接続詞There is過去形現在進行形過去進行形未来形再帰代名詞文型受動態
フォニックス
フォニックス発音練習【1】 短母音(A、E、I、O、U)、子音(B,K,D,F,G,H,J,L,M,N,P,Qu,R,S,T,V,W,X,Y,Z,softC,hardC,softG,hardG)
フォニックス発音練習【2】母音ペア(AI、AY、EI、IE、EA、EE、OA、OW、UE,UI、OI、OY、OU、OO、AU、AW)、Rが付いた母音(AR、ER、IR、UR、OR、ORE、EAR、AIR、ARE)、子音ダイヤグラフ(CH、SH、TH、CK、WH、GH、PH)、サイレントE
フォニックス発音練習【3】 子音ブレンド(BL,CL,FL,GL,PL,BR,CR,DR,FR,GR,PR,TR,SC,SK,SM,SN,SP,ST,SW,SQU,SCR,SPL,SPR,STR,THR)
中学英単語
人称代名詞【1】 I, my, me, mine, you, your, you, yours, he, his, him, his, she, her, her, hers, it, its, it, we, our, us, ours, they, their, them, theirs
代名詞【2】 this, these, that, those, myself, yourself, himself, herself, ourselves, everybody, somebody, nobody, everyone, someone, anyone, none, everything, something, anything, nothing, each, other, another, all, both
be動詞・助動詞・疑問詞【3】 be, am, are, is, was, were, do, dose, did, can, cannot, could, will, would, may, might, must, shall, should, have to, who, whose, whom, what, which, when, where, why, how, how many, how much, how old
冠詞・間投詞・接続詞・省略形【4】 be, am, are, is, was, were, do, dose, did, can, cannot, could, will, would, may, might, must, shall, should, have to, who, whose, whom, what, which, when, where, why, how, how many, how much, how old
前置詞【5】 about, above, across, after, against, along, around, as, at, before, behind, below, beside, between, among, by, down, during, except, for, from, in, to, into, of, on, onto, minus, near, outside, over, since, than, through, toward, under, until, up, upon, with, without
名詞(数)【6】 zero, one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, hundred, thousand, million
名詞(曜日・月・Ac-Af)【7】 Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, January, February, March, April, May, June, July, August, September, October, November, December, accident, acid rain, action, active volcano, activity, actor, actress, address, adult, advantage, adventure, advice, affection, Africa, afternoon
名詞(Ag-Ba)【8】 age, air, air conditioner, air pollution, airport, album, ambulance, America, American, amusement park, ancestor, anchor, animal, animation, ant, apple, architect, area, arm, art, artist, arts and crafts, Asia, assistance, astronaut, athlete, atomic bomb, attack, attention, aunt, Australia, autumn, baby, back
名詞(Ba-Bo)【9】 backyard, badge, bag, ball, balloon, ballpark, bank, barrier, baseball, basketball, bath, bathroom, bazaar, beach, bear, beauty, bed, beginner, beginning, Beijing, belief, bicycle, bike, biotechnology, bird, birthday, blanket, blood, blossom, board, boat, body, bomb
名詞(Bo-Ca)【10】 book, border, bottle, bottom, box, boy, boycott, braille, branch, Brazil, bread, breakfast, breath, breeze, bridge, British, broadcasting, brother, brotherhood, buffet, building, burger, bus, business, button, cafeteria, cage, cake, calligraphy, camera, campaign, Canada, cancer
名詞(Ca-Ch)【11】 candy, cap, capital, captain, car, card, care, carpenter, carrot, carton, cartoon, case, cat, cattle, cause, cave, CD, ceiling, cell, cent, center, centimeter, century, cereal, chain, chair, championship, chance, character, charity, chart, chemical, cherry
名詞(Ch-Co)【12】 chicken, child, children, China, Chinese, chopsticks, chorus, Christmas, church, city, class, classmate, classroom, clerk, clock, cloth, clothes, cloud, club, coffee, collection, college, color, comic, communication, company, computer, concert, conclusion, condominium, conductor, conference, connection
名詞(Co-De)【13】 convenience, conversation, cook, cooperation, corner, costume, country, countryside, couple, courage, course, cousin, cow, crane, creativity, creature, crop, cuisine, culture, cup, curry, curtain, custom, cut, dance, dancer, danger, date, daughter, day, deadline, death, decision
名詞(De-Do)【14】 deer, degree, democracy, demonstration, dentist, desert, desk, despair, detective, developing country, diary, dictionary, difference, difficulty, dignity, dinner, dinosaur, director, disaster, discussion, disease, display, distance, diver, doctor, dog, doll, dollar, dolphin, dome, door, doorbell, dot
名詞(Dr-Ev)【15】 drama, dream, dress, driver, drum, e-mail, e-pal, ear, earth, earthquake, east, echo, egg, Egypt, electricity, elephant, emergency, end, endangered animals, energy, engine, engineer, England, entrance, envelope, environment, episode, equality, era, eraser, Europe, evacuation, evening
名詞(Ex-Fi)【16】 examination, example, exchange, exhibition, exit, experience, expression, eye, eyesight, face, facility, fact, factory, fall, family, farewell, farm, farmer, fate, father, fault, favor, feeling, feet, fellow, fence, festival, fever, fiction, field, fine arts, finger, fire, firework
名詞(Fi-Ge)【17】 fish, fitting room, flag, flame, flight, floor, flower, flute, folk, food, football, foreigner, forest, fossil fuel, fountain, fox, frame, France, French fries, fridge, friend, friendship, frog, front, fruit, fun, future, game, garbage, garden, gas, gate, gentleman
名詞(Ge-Ha)【18】 German, Germany, gesture, gift, girl, glass, global warming, goal, God, gold, goodness, goose, gorilla, government, grade, grandchild, grandfather, grandmother, grass, grassland, green, greenhouse gases, greeting, ground, group, guest, guide, guitar, gull, habit, habitat, hair, Halloween
名詞(Ha-Ho)【19】 hamburger, hand, handkerchief, handle, harm, harvest, hat, hay fever, head, headache, health, heart, heat, heritage, hero, highland, hill, hint, history, hobby, hole, holiday, home, home economics, homepage, homestay, homework, honey, honor, horizon, horse, hospital, host
名詞(Ho-Ju)【20】 hotel, hour, house, humor, hunger, husband, idea, impact, importance, impossible, impression, India, Indian, influence, information, ink, insect, inspiration, instrument, interest, internet, interview, island, jam, Japan, Japanese, jellyfish, job, journey, joy, juice, jungle, justice
名詞(Ke-Li)【21】 key, kilometer, kind, kindness, king, kingdom, kitchen, kite, knee, knife, knowledge, koala, Korea, lady, lake, land, landmine, language, lavatory, law, lawyer, leader, leaf, leaves, left, leg, lesson, letter, library, life, lives, light, line
名詞(Li-Me)【22】 lion, liquid, locker, London, loss, lot, lullaby, lunch, machine, magic, man, men, manner, mansion, map, market, mask, master, match, mathematics, math, matter, meal, meaning, measure, meat, medal, medicine, meeting, member, memorial, memory
名詞(Me-Mt)【23】 mess, message, meter, Mexico, midnight, mile, milk, minister, minute, mirror, Miss, mistake, model, mom, moment, money, monkey, monster, monument, moon, moral education, morning, mother, motto, mountain, mouse, mouth, movement, movie, Mr., Mrs., Ms., Mt.
名詞(Mu-Nu)【24】 museum, music, musical, musician, nail, name, nap, nation, nature, neck, needle, neighbor, neighborhood, nephew, nest, net, New York, New Zealand, news, newspaper, nickname, niece, night, Nobel Peace Prize, noise, noon, north, northeast, nose, notebook, notice, number, nun
名詞(Nu-Pa)【25】 nurse, obstacle, occupation, ocean, octopus, office, officer, oil, opera, operator, opinion, orange, orchestra, order, organ, outside, oxygen, ozone, page, pain, paint, painter, painting, pair, paper, pardon, parent, park, parking, part, partner, party, passport
名詞(Pe-Pl)【26】 PE, peace, peel, pen, pencil, people, period, permission, person, pet, pharmacist, phone, photo, photographer, phrase, piano, picnic, picture, piece, pig, pillar, pilot, pink, pity, place, plan, plane, planet, plant, plastic, plate, player, playground
名詞(Pl-Qu)【27】 pleasure, pocket, poem, poet, point, poison, police, pollution, pool, population, post, poster, pot, potato, power, present, presentation, pressure, price, priest, principal, priority, problem, program, project, promise, pumpkin, purple, purpose, pyramid, queen, question, quiz
名詞(Ra-Ri)【28】 rabbit, race, racket, radio, rain, rainbow, rainforest, ramp, rat, ray, reason, recess, recipe, rectangle, recycling, refugee, relationship, relay, report, reporter, reproach, research, resource, rest, restaurant, restroom, rhythm, rice, rice cake, rider, right, ring, risk
名詞(Ri-Sh)【29】 river, road, rock, rocket, roof, room, rose, rule, ruler, sadness, safety, sale, salesclerk, salmon, salt, sanctuary, sand, scene, school, science, scientist, scissors, sculpture, sea, season, seat, secondhand store, secret, section, seed, sentence, service, shade
名詞(Sh-So)【30】 shape, sheep, sheet, shelf, ship, shirt, shoes, shop, shopping, shot, shoulder, shrine, side, sightseeing, sign, silver, singer, sister, site, situation, size, skill, skin, sky, slave, slum, smoke, snow, soccer, socks, social studies, softball, soldier
名詞(So-St)【31】 solution, son, song, sound, soup, south, souvenir, space, spaceship, Spain, speaker, specialist, speech, spoon, sport, spring, square, stadium, stairs, stamp, stapler, star, starvation, station, statue, stay, step, stick, stomach, stomachache, stone, store, storm
名詞(St-Te)【32】 story, stranger, street, string, struggle, student, style, subject, suburb, subway, success, summer, sun, sunrise, sunset, surface, survey, sweater, sword, symbol, system, T-shirt, table, tag, tail, task, tea, teacher, teacup, team, tear, telephone, telescope
名詞(Te-To)【33】 television, temper, temperature, temple, tennis, test, textbook, Thanksgiving Day, theater, theme, thief, thing, thought, ticket, tiger, time, tissue, toast, today, toe, toilet, tomato, tomorrow, ton, tongue, tonight, tooth, teeth, toothache, top, tower, town, toy
名詞(Tr-Un)【34】 track, track and field, trade, tradition, traffic, tragedy, train, trap, trash, travel, tray, treasure, tree, triangle, trick, trip, trouble, truck, trust, truth, tube, turkey, turn, turtle, TV, U.K., umbrella, United Nations, uncle, unicycle, uniform, United States, unity
名詞(Un-We)【35】 universal design, university, use, vacation, value, variety, vegetable, vending machine, vet, victim, video, video game, view, village, violin, visit, visitor, voice, volcano, volleyball, volume, volunteer, vulture, waitress, wall, wallet, war, water, waterfall, way, weapon, weather, weather forecast
名詞(We-Zo)【36】 web, week, weekend, well, west, whale, wheel, wheelchair, wife, wind, windmill, window, wine, wing, winner, winter, wish, witch, wolf, woman, wood, word, work, worker, world, World Heritage Site, yacht, year, yellow, yen, yesterday, zebra, zoo
形容詞(順序を表す言葉)【37】 first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth, twentieth, thirtieth, fortieth, fiftieth, sixtieth, seventieth, eightieth, ninetieth, hundredth, thousandth, millionth
形容詞(Ab-Ce)【38】 able, active, adult, afraid, all, American, ancient, angry, another, any, artificial, asleep, atomic, awesome, bad, ill, worse, worst, bare, basic, beautiful, big, black, blind, blue, bored, boring, born, both, breathtaking, bright, British, brown, busy, careful, centigrade, certain
形容詞(Ch-Dr)【39】 cheap, cheerful, chemical, Chinese, civil, clean, clever, close, cloudy, cold, colorful, comfortable, commercial, common, compulsory, conceited, confused, convenient, cool, correct, creative, crowded, cute, daily, dangerous, dark, dead, deaf, dear, deep, delicious, depressed, different, difficult, dirty, disabled, disappointed, dry
形容詞(Dy-Fr)【40】 dying, each, easy, economic, efficient, elderly, elegant, elementary, else, embarrassed, empty, equal, even, every, exact, excited, exciting, expensive, fair, faithful, famous, far, fast, favorite, few, fine, fit, fond, foolish, foreign, former, foster, free, fresh, friendly, frightened, frustrated
形容詞(Fu-La)【41】 full, funny, German, glad, global, good, well, better, best, great, greedy, half, happy, hard, healthy, heavy, high, honest, hot, huge, human, hungry, important, impossible, Indian, industrial, injured, integrated, intense, interested, interesting, international, itchy, Japanese, junior, kind, large
形容詞(La-No)【42】 last, late, light, little, less, least, living, long, loud, lucky, major, many, much, more, most, master, meaningful, medium, memorial, mighty, military, minor, miserable, modern, musical, narrow, national, natural, naughty, necessary, neither, nervous, new, next, nice, noble
形容詞(No-Re)【43】 noisy, northeast, northern, nuclear, official, old, only, open, opposite, optimistic, ordinary, original, other, outside, own, pale, paralyzed, particular, peaceful, perfect, plastic, pleasant, polite, political, poor, popular, positive, possible, present, pretty, proud, public, quiet, rainy, ready, real, red
形容詞(Re-St)【44】 regular, relaxed, responsible, rich, ridiculous, right, round, sacred, sad, safe, same, scary, selfish, senior, serious, several, short, shy, sick, silent, silly, similar, simple, sleepy, slow, small, smart, smooth, snowy, sociable, soft, some, sore, sorry, sour, special, stiff, straight
形容詞(St-Yo)【45】 strange, strong, stupid, such, sunny, sure, sweet, tall, terrible, thirsty, tired, tourist, traditional, true, unbelievable, unclean, underground, unequal, unhappy, useful, usual, vast, virtual, warm, weak, welcome, western, white, whole, wide, wild, willing, windy, wonderful, worth, wrong, young
動詞(Ac-Br)【46】 act, add, admire, advertise, agree, allow, amaze, answer, appear, arrest, arrive, ask, assist, attack, bark, bear, become, became, begin, began, begun, believe, belong, blame, blow, blew, boil, border, borrow, bother, break, broke, broken
動詞(Br-Co)【47】 bring, brought, broaden, brush, build, built, bump, burn, bury, buy, bought, call, campaign, care, carry, catch, caught, cause, celebrate, change, chew, choose, chose, clean, climb, close, collect, come, came, communicate, compare, complain, contact
動詞(Co-Ea)【48】 continue, control, cook, cost, cough, count, cover, create, cross, cry, decide, decorate, decrease, develop, die, disagree, disappear, discover, displace, display, do, does, did, done, draw, drew, dream, drink, drank, drunk, drive, drop, dump, earn
動詞(Ea-Fu)【49】 eat, ate, eaten, elect, enjoy, enter, excuse, expect, explain, explode, export, fail, fall, fell, fascinate, fasten, feel, felt, fight, fought, fill, find, found, finish, float, fly, flew, fold, follow, forget, forgot, forgive, fulfill
動詞(Ga-Hu)【50】 gather, get, got, give, gave, given, go, went, gone, graduate, grow, grew, guess, guide, handle, hang, happen, harm, hate, have, has, had, heal, hear, heard, help, hide, hit, hold, held, hope, hurry, hurt
動詞(Im-Le)【51】 imagine, increase, injure, inspire, insult, interest, introduce, invent, investigate, invite, join, judge, jump, keep, kill, knit, knock, know, knew, known, land, last, laugh, launch, lay, laid, lead, led, learn, leave, lend, lent
動詞(Li-Pa)【52】 lie, lay, lain, lied, lift, like, listen, live, locate, look, lose, make, made, marry, master, mean, meant, meet, met, mind, miss, move, need, nod, offer, open, order, overcome, paint, park, participate, pass, pay, peel
動詞(Pi-Re)【53】 pick, plan, plant, play, please, poison, pollute, post, practice, prefer, prepare, present, print, produce, protect, provide, publish, pull, punish, push, put, rain, raise, reach, react, read, realize, rebuild, receive, recognize, recycle, reduce, refresh
動詞(Re-So)【54】 reject, relay, release, remain, remember, remind, remove, report, represent, reproach, rescue, research, respect, respond, return, reuse, ride, rode, ridden, rise, run, ran, run, save, say, said, scare, scold, search, see, saw, seen, seem, sell, sold
動詞(Se-St)【55】 send, sent, separate, sew, shake, sheet, shine, shoot, shop, shout, show, shut, sing, sang, sung, sit, sat, ski, sleep, smell, smile, smoke, snow, solve, sort, sound, speak, spoke, spoken, spell, spend, stand, start, starve, stay
動詞(St-Tr)【56】 sting, stop, strive, struggle, study, succeed, suffer, support, suppose, surf, surprise, surround, survive, swallow, swim, swam, swum, take, took, taken, talk, teach, taught, tease, tell, told, thank, think, throw, threw, thrown, touch, travel, treat
動詞(Tr-Ya)【57】 trust, try, turn, uncover, understand, understood, use, visit, wait, wake, woke, woken, walk, want, wash, waste, watch, weaken, wear, weigh, whisper, whistle, win, won, wish, wonder, work, worry, wrap, wrestle, write, wrote, written, yacht
副詞(A.-Fi)【58】 a.m., about, abroad, again, ago, almost, alone, aloud, already, also, always, anytime, anywhere, away, back, best, better, carefully, certainly, cheerfully, clearly, closely, definitely, downstairs, early, easily, either, else, enough, especially, even, ever, everywhere, fast, finally
副詞(Fl-Ra)【59】 fluently, forever, forward, happily, here, incredibly, instead, just, later, long, maybe, more, most, never, no, northeast, not, now, o’clock, off, often, OK, once, out, outside, over, p.m., perhaps, please, precisely, quickly, quietly, quite, rather
副詞(Re-Ye)【60】 ready, really, right, round, sadly, sincerely, slowly, so, someday, somehow, sometimes, soon, still, straight, strongly, suddenly, sure, then, there, tightly, together, tomorrow, tonight, too, truly, unfairly, up, usually, very, well, worst, yes, yesterday, yet