I had a headache, so I went to bed early last night. 我頭痛，于是昨晚很早就睡了。

　　10.Yet (然而)，有時(shí)和and 一起用，表示吃驚、表示轉(zhuǎn)折，相當(dāng)于but at the same time, however, nevertheless:

　　She is vain and foolish, and yet people like her. 她既虛榮又愚蠢，然而人們卻喜歡她。

　　She’s a funny girl, yet you can’t help liking her. 她是個(gè)瘋瘋癲癲的女孩，然而你卻禁不住喜歡她。

　　He worked hard, yet he failed. 他很努力，然而卻失敗了。

　　It’s strange, yet it’s true. 這事有點(diǎn)怪，卻是真的。

　　He’s a wealthy, yet honest, businessman. 他是個(gè)富有而又誠實(shí)的商人。

　　It is only a little shop and yet it always has such lovely decorations. 那只是個(gè)小店，卻總是有漂亮的裝飾。

　　You can draw a good horse in five minutes, yet you kept me waiting for a year. 你能在五分鐘內(nèi)畫出一匹好看的馬，然而你讓我等了一年。

　　二、從屬連詞

　　從屬連詞是用來引導(dǎo)從句的。

　　1.連詞that, if, whether，連接代詞what, which, who, whom, whose以及連接副詞how, when, why, where可用來引導(dǎo)名詞從句，充當(dāng)主語、表語、賓語等。非正式文體中的賓語從句常省略that：

　　I think (that) he’ll be back in an hour. 我認(rèn)為他一小時(shí)后就會(huì)回來。

　　Who they are doesn’t matter much. 他們是誰沒什么大關(guān)系。

　　Can you tell me where he is? 你能告訴我他在哪兒嗎?

　　He asked me if/whether I knew John. 他問我是否認(rèn)識(shí)約翰。

　　此外，that, which, who, whom, whose, when, why, where等還可以引導(dǎo)定語從句。

　　2.連詞when, while, before, after, till/until, since, as soon as等引導(dǎo)時(shí)間狀語從句：

　　She said hello to me when she saw me. 她看到我的時(shí)候，和我打了招呼。

　　I’ll wait here until you come back. 我將在這里等你回來。

　　3.連詞if, unless引導(dǎo)條件狀語從句;because, as, since引導(dǎo)原因狀語從句：

　　I’ll help her if she asks me to. 如果她要求我，我就幫助她。

　　I won’t help her unless she asks me to. 除非她要求我，否則我不會(huì)幫她。

　　He didn’t come because he was ill. 因?yàn)樗�病了，所以沒來。

　　As he hasn’t appeared yet, we shall start without him. 既然他還沒有出現(xiàn)，我們就先開始吧。

　　Since everybody is here, let’s begin. 既然大家都到了，咱們就開始吧。

　　4.連詞in order than, so that引導(dǎo)目的狀語從句;so…that…引導(dǎo)結(jié)果狀語從句：

　　I locked the door in order that we might continue our discussions undisturbed. (=I locked the door in order to continue our discussions undisturbed.) 我把門鎖上了，以便我們可以繼續(xù)討論而不受打擾。

　　The car ran so fast that I couldn’t see who was in it. 汽車跑得那么快，我沒看清誰坐在里面。

　　5.連詞than, as…as…, not as/so…as…用來引導(dǎo)比較狀語從句：

　　He is better educated than his brother. 他比他兄弟受的教育好。

　　He is as well educated as his brother. 他和他兄弟受的教育一樣好。

　　He is not as/so well educated as his brother. 他沒有他兄弟受的教育好。

　　6.連詞although, though 引導(dǎo)讓步狀語從句;where, wherever 引導(dǎo)地點(diǎn)狀語從句：

　　I’ll go wherever you go. 不管你去哪兒，我就去那兒。