九年級(jí)英語(yǔ)下冊(cè) unit2--unit4教學(xué)案2
10.you cannot imagine how amazing they are unless you see them with your own eyes. 如果你沒(méi)有親眼看到它們，就不能想象它們是多么令人驚異。
notes:
語(yǔ)法講解
date:
1.although引導(dǎo)的讓步狀語(yǔ)從句
1)although相當(dāng)于though, 兩詞都是連詞，引導(dǎo)讓步狀語(yǔ)從句。如：
①although/though she’s young, she knows a lot.
=she’s young, but she knows a lot.
盡管她年齡小，她卻懂得很多。
②although/though he is in poor health, (yet) he works hard.
=he’s in poor health, but he works hard.
雖然他身體不好，但他還是努力工作。
③i’ll never give up english though it is difficult.
=english is difficult, but i’ll never give it up.
雖然英語(yǔ)很難，但是我不會(huì)放棄的。
注意：①連詞although和though引導(dǎo)讓步狀語(yǔ)從句，主句前不能再用but，但有時(shí)可以用副詞yet或still。
②當(dāng)加強(qiáng)語(yǔ)氣時(shí)，我們通常說(shuō)even though，而不說(shuō)even although。如：
although/ though/ even though she didn’t understand a word of what he said, she kept smiling. 盡管他的話她聽(tīng)不懂一個(gè)字，她還是一直微笑著。
③though可以用于句末，although則不可以。如：
she knew all her friends would be there, she didn’t want to go, though.
她知道她的所有朋友都會(huì)出席，但是她自己不想去。
2) even though意為“即使”、“盡管”、“縱然”，與even if意義相同，也引導(dǎo)讓步狀語(yǔ)從句。如：
①even though he’s very nice, i don’t really trust him. 盡管他很好，我并不真正信任他。（事實(shí)上“很好” ）
②even if you are not fond of flowers, you shouldn’t miss the flower exhibition.即使你不喜歡花，這次花展你也不應(yīng)錯(cuò)過(guò)。 （假想“不喜歡” ）
③she won’t leave the television set, even though her husband is waiting for his supper.縱使她丈夫在等著吃晚飯，她也不愿意離開(kāi)電視機(jī)。
④i’ll get there even if i have to sell my watch to get the railway fare.即使我必須賣掉手表去買火車票，我也要到那里去。
注意：讓步狀語(yǔ)從句通常與一般現(xiàn)在時(shí)或一般過(guò)去時(shí)連用。
2.unless引導(dǎo)的條件狀語(yǔ)從句。
由于unless具有否定意義，因此它引導(dǎo)的是個(gè)否定的條件（如果……不）。可以把它看作是if…not的同義表達(dá)手段。如：
①unless he comes… = if he doesn’t come… 如果他不來(lái)……
②unless you work hard, you will fail. = if you don’t work hard, you will fail.
如果你不努力工作，你會(huì)失敗的。
注意：unless從句，如同if從句一樣，也要用一般現(xiàn)在時(shí)代替一般將來(lái)時(shí)。如：
①unless it rains, we’ll go hiking.如果不下雨，我們將去遠(yuǎn)足。
②unless he comes, i’ll go instead of him.如果他不來(lái)，我將代替他去。
3. so that引導(dǎo)的目的狀語(yǔ)從句
1)so that引導(dǎo)目的狀語(yǔ)從句，從句中通常帶有can, could, may, might, should等情態(tài)動(dòng)詞，以適用于目的。如：
①they worked very hard so that they could finish the work before supper.
他們拼命地干，想在晚飯前就把工作干完。
②he walked by the side of the road so that he would not be hit by cars.