牛津9B Unit 3(含單元習題)
10.you cannot imagine how amazing they are unless you see them with your own eyes. 如果你沒有親眼看到它們，就不能想象它們是多么令人驚異。notes:語法講解
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1.although引導的讓步狀語從句1)although相當于though, 兩詞都是連詞，引導讓步狀語從句。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.雖然英語很難，但是我不會放棄的。注意：①連詞although和though引導讓步狀語從句，主句前不能再用but，但有時可以用副詞yet或still。②當加強語氣時，我們通常說even though，而不說even although。如：although/ though/ even though she didn’t understand a word of what he said, she kept smiling. 盡管他的話她聽不懂一個字，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，也引導讓步狀語從句。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，這次花展你也不應錯過。 （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，她也不愿意離開電視機。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：讓步狀語從句通常與一般現在時或一般過去時連用。2.unless引導的條件狀語從句。由于unless具有否定意義，因此它引導的是個否定的條件（如果……不）�？梢园阉醋魇莍f…not的同義表達手段。如：①unless he comes… = if he doesn’t come… 如果他不來……②unless you work hard, you will fail. = if you don’t work hard, you will fail.如果你不努力工作，你會失敗的。注意：unless從句，如同if從句一樣，也要用一般現在時代替一般將來時。如：①unless it rains, we’ll go hiking.如果不下雨，我們將去遠足。②unless he comes, i’ll go instead of him.如果他不來，我將代替他去。3. so that引導的目的狀語從句1)so that引導目的狀語從句，從句中通常帶有can, could, may, might, should等情態動詞，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.