【正文】 　　而如今，我們已深受其害，要想消除它的危害，我們必須從根源上杜絕它的產(chǎn)生，我們每一個(gè)人都應(yīng)給予A高度的重視，用系統(tǒng)的和科學(xué)的方法去解決，唯有這樣，避免它帶來更多損失，我們?nèi)祟惽斑M(jìn)的腳步才會(huì)更加平穩(wěn)，更加歡快的邁向輝煌的明天。首先，從最直觀的角度來看，A的出現(xiàn)直接損害了（這里加入一句針對(duì)性的話，如人類的身體健康和環(huán)境的平衡）。7．算術(shù)題中主語是數(shù)詞，謂語動(dòng)詞用單數(shù)。 由there be, either … or, neither…nor, not only…but (also)連接兩個(gè)并列的主語，謂語動(dòng)詞遵守就近原則。Help sb. (to) do sth. 動(dòng)詞不定式還可用在某些表示感情的形容詞之后:glad, happy, pleased, sorry, sad, afraid 不定式作賓語的有:something to drink \ eat。 Ask sb. (not )to do sth. 否定句中can’t 有不可能之意。應(yīng)該。may I ？ 回答：Yes, you may. Yes, of course. 忘記曾經(jīng)做過的事情 （事情已經(jīng)做）Try to do sth. 努力去做某事Try doing sth. 試著去做某事Go on to do sth. I enjoy reading English loudly. mind doing (1)關(guān)系代詞在限制性定語從句中緊跟介詞作賓語（介詞提前）。Do you know where Mr. Li lives? Please tell me She asked me I don’t know A．主現(xiàn)從不限；B．主過從過；C．真金不怕火煉。②祈使句一般現(xiàn)在時(shí) 并列句t it? Nobody knows about it, do they? (does he?) 9)　省去主語的祈使句的反意疑問句，疑問部分用will you。 I don39。 Everything is ready, isn39。 He used to take pictures there, didn39。 What cold weather it is!反意疑問句1)　 陳述部分用 no, nothing, nobody, never, few, seldom, hardly, rarely, little, tooto等否定含義的詞時(shí)，疑問部分用肯定含義。注:過去完成時(shí)had +done by+過去某一時(shí)點(diǎn)。 形容詞和副詞比較級(jí)和最高級(jí)的構(gòu)成規(guī)則 （略）不規(guī)則: good / well better best Mr. Zhang isn’t as old as Mr. Li. = Mr. Zhang is younger than Mr. Li. 比較級(jí)的標(biāo)志詞 ①than, How soon 多快，多久以后。 probableprobably⑧多數(shù)以ly 結(jié)尾的詞是副詞。作副詞, 放在fly, jump 等后表飛得高，跳得高。 I fell even worse now. , 感官動(dòng)詞(look, smell, taste, sound, feel )三個(gè)變(get, bee, turn,) keep 后跟形容詞.⑥既可作形容詞又可作副詞的詞有： hard 作形容詞=difficult , 作副詞，放在work, rain等后,表努力地做。 ninetyninetieth eighteen eighteenth twosecond ⑤第三個(gè)分號(hào)節(jié)是十億位 billion.others詞組有every ten minuets each 用于兩個(gè)或兩個(gè)以上，著眼于個(gè)體。Heath is very important to us. We should eat more vegetables and fruit instead of too much rich food. much too 太，用法相當(dāng)于too, 放在形容詞和副詞前。a few=several 幾個(gè)， 一些，表示肯定意思，用以修飾可數(shù)名詞。everything 每件事，一切事物，用于各種句型。/ Come to oneself ④指嬰兒和不明身份的人。 we—us—our—ours—ourselvess room（兩間）　　John and Mary39。 a map of China 4） 在表示店鋪或教堂的名字或某人的家時(shí)，名詞所有格的后面常常不出現(xiàn)它所修飾的名詞，如：the barber39。 Mother’s Days來表示所有關(guān)系，帶這種詞尾的名詞形式稱為該名詞的所有格，如：a teacher39。 at night on time at school / work / home 4）在稱呼或表示官銜，職位的名詞前不加冠詞； He is captain of the team. 5）在三餐、四季，球類運(yùn)動(dòng)、學(xué)科、娛樂運(yùn)動(dòng)的名稱前，不加冠詞 如：have breakfast /supper / lunch，play basketball / football / volleyball / chess , in spring/summer/ autumn/ winter 6）當(dāng)by 與火車等交通工具連用，表示一種方式時(shí)，中間無冠詞；by bus/ train/ taxi/ bus/ ship 歐洲 Lei Feng 雷鋒at the beginning of the twentyfirst century the Great Wallan則用于元音音素前 an hour, an honest boy , an “A E F H I L M N O R S X” keep an eye on 定冠詞the的用法：1）特指雙方都明白的人或物： Give me the book.2）上文提到過的人或事： Do you know the lady in blue? –Yes, she is a teacher of a university. 3）指世上獨(dú)一物二的事物the sun ( sky / moon/ earth/a “u” Once a week in a hurry The lion is a wild ，表示一類人：the rich /poor/ blind/ aged / living / impossible 5）用在序數(shù)詞和形容詞最高級(jí)，及形容詞only，very, same等前面：I live on the second floor. 6）用在表示身體部位的名詞前： She caught me by the arm. 7）用在表示樂器和表方位的名詞之前：　 She plays the piano \violin \ guitar Mother’s Day step by step on duty go to work watchwatches toothteethTime and money are④As bag，men39。 twenty minutes’ walk 3） 凡不能加39。共有39。a friend of mine / hers / his / theirs she—her—her—hers—herselfA friend of mine我的一位朋友。one同類而不同一。Everyone is here. ⑵修飾不定代詞的形容詞后置。Only a little 僅一點(diǎn)點(diǎn).②也可修飾形容詞和副詞。 much 許多。a number of 許多的,= many 只用于修飾復(fù)數(shù)形式名詞，放在可數(shù)名詞復(fù)數(shù)前。兩個(gè)都 .表示泛指另一個(gè)人。one another’s 相互的，彼此的。 十位與個(gè)位，寫時(shí)用“—”②先確定分節(jié)號(hào)，從右至左，每隔三位數(shù)是一個(gè)分節(jié)號(hào)。 1, 234 ,567, 892　one billion two hundred and thirtyfour million five hundred and sixtyseven thousand eight hundred and ninetytwo in +物主代詞+數(shù)詞的復(fù)數(shù)形式 in one’s twenties 5）He lives in Rom 88. three days and a half = three and a half days f來把ve替，見y變ie。 thirteen thirteenthsixty sixtiethInterested, excited, amazed, surprised, frightened, tired, pleased 主語為人。 long作形容詞，表事物的長(zhǎng)度，作副詞，放在last, talk等后,表動(dòng)作持續(xù)。 healthy , heavy, happy, lucky, noisy, ③good ——wellHow long 多久，多長(zhǎng)時(shí)間。 not as / so +原級(jí) + as =反義詞+than harder and harder , our hometown is being more and more beautiful. 最高級(jí)標(biāo)志詞：①the + 最高級(jí) + ofWho city is the most beautiful, Beijing, Shanghai or Kunming? ④序數(shù)詞+最高級(jí)，表“第幾最” Chang jiang is the first longest river in China. just now, in the old days, a moment ago, long ago, ih the 1990swas / were +done注意動(dòng)詞的過去式的構(gòu)成一般將來時(shí)?will/ shall +V原形?be going to +V原形tomorrow, next year, this year, at the end of this term, from now on,in the future, in a few days39。情態(tài)動(dòng)詞t： let us \ him will you / won39。 What wonderful ideas (we have)!What + 形容詞+不可數(shù)名詞+主語+謂語+其它t we? 3)　陳述部分的謂語是used to 時(shí)，疑問部分用didn39。t you? 5)　陳述部分由neither… nor, either… or 連接的并列主語時(shí)，疑問部分根據(jù)其實(shí)際邏輯意義而定。 Everyone knows the answer, don39。t you ? 注意： Let39。 There is something wrong with your watch, isn39。he is rich but he is not happy. Or 否則，要不然，或者（在否定句中表和） Hurry up, or you’ll be late. so 因此，所以 Kate was ill so she didn’t go to school. For 因?yàn)?Thoughtbut。This is the first book (that) he has read.(4)先行詞被the only, the very, the same, the last修飾時(shí)。 Who is the girl (that) drove the car? 主句以There be 引導(dǎo)時(shí) 。 Football , (which) is a very popular game, is played all over the world.后跟ing 的詞有Finish doing d better (not) would you please (not) make\ let \ have\ [注意: 在被動(dòng)語態(tài)中, t o 要加上] 后跟ing 和TO 的區(qū)別developing country 發(fā)展中國(guó)家 Stop doing sth. 停止正在做的事情（事情只有一件）Remember to do （事情沒有做）主要用在疑問句、否定句中，表示懷疑、估計(jì)，不用肯定句中。May Don’t have to = needn’t ④must 一定。 否定回答No, needn’t. 不定式不定式常跟在以下及物動(dòng)詞后面作賓語:want, like, wish, hope, try, ask, start, begin, forget, remember, learn, choose, agree, tell, decide, need .如跟不可數(shù)名詞，謂語動(dòng)詞用單數(shù)?！　〗oA一個(gè)精確恒定的定義并非易事，因?yàn)樗母拍钌婕傲丝茖W(xué)、人性、思想、經(jīng)濟(jì)、社會(huì)、自然等廣闊的領(lǐng)域。同時(shí)，A的產(chǎn)生來源于部分人們的自