黑子學英語,乾貨分享,從什麼時候開始都不晚!
今天繼續分享#高考英語#託福雅思精選100句中第二十四句的分析,昨天分享了比較狀語從句的用法,今天的重點是結果狀語從句的用法。
Most substances contract when they freeze so that the density of a substance’s solid is higher than the density of its liquid.大多數物質遇冷收縮,所以他們的密度在固態時高於液態。
句型結構:本例句是一個含有時間狀語從句、結果狀語從句和比較狀語從句的主從複合句。主句為「主-謂」結構,主語為substances,謂語是 contract,when they freeze是when引導時間狀語從句,so that the density of a substance’s solid is higher than the density of its liquid是so that引導結果狀語從句,其中than the density of its liquid是that引導比較狀語從句。
知識點:結果狀語從句
結果狀語從句就是在句子中作結果狀語的句子,一般放在主句之後。一般引導結果狀語從句的連詞有:so that, so… that…, such… that…, so…as to…, too…to…, enough to等
第一,so that引導結果狀語從句:so that意為「因此,所以,以致於」,是表結果的詞組。本例句裡的結果狀語從句就是由so that引導的。
【例】Tom worried so that he could not sleep. Tom太擔心,所以都睡不著。
第二,so… that…表「如此…以致於…」,so是副詞,修飾形容詞或副詞,所以它有以下幾種結構
1.「so + 形容詞 + that …」結構
【例】It was so hot that they had to stop the match. 天氣是如此的熱,結果是他們不得不取消了比賽。hot是形容詞。
2.「so + 副詞 + that」結構
【例】Tom drove so carelessly that he almost hit the tree. Tom開車是如此的粗心大意,結果是他差點撞到大樹。carelessly是副詞。
3. 「so + 形容詞+(冠詞a/an)+ 名詞 + that」結構:當名詞為可數名詞單數時,名詞前加冠詞;當名詞為可數名詞複數時,名詞時不加冠詞。
【例】Ada is so lovely a girl that all like her very much. Ada是如此可愛的一個女孩,結果是所有人都非常的喜歡她。girl是可數名詞單數,名詞girl前加冠詞a。
4. 「so many/much/few/little + 名詞 + that」結構
【例】There was so much homework to do that Tom got tired. 有太多的作業要做,結果是Tom太累。
第三,such… that…意思也是「如此…以致於…」,such是形容詞,修飾名詞,所以它的結構一般是:「such (+冠詞a/an)(+形容詞)+ 名詞 + that」
1.「such + (冠詞a/an) + 形容詞 +名詞 + that」結構
【例】Tom is such a handsome man that all girls love him. man為可數名詞單數,形容詞handsome前加冠詞a
【例】They are such smart children that his teachers all like them. Children為可數名詞複數,形容詞smart前不加冠詞。
2. 「such + 形容詞 + 不可數名詞 + that」結構
【例】It was such bad weather that they had to stay in the airport all day.天氣是如此的糟糕,結果是他們不得一整天都留在機場。
注意,有時候,「such + 冠詞a/an + 形容詞 +名詞 + that」結構與「so + 形容詞 + 冠詞a/an + 名詞 + that」結構可互換。
【例】It was such a bad day that Tom do not want to go out. = It was so bad a day that Tom do not want to go out. 天氣是如此的糟糕,結果是Tom不想出門。
當so或such在句首時,主句要用倒裝。
【例】So merciful was Tom a man that he would have held an umbrella over a chick in a shower of rain. Tom是一個非常善良仁慈的人,結果是它會為只小雞打傘遮雨。
第四,too…to…,意為「太…而不能…」
【例】Tom is too young to go to school. Tom因為太小,結果就是不能去上學。
第五,enough… to,意為「達到做某事的程度」
【例】Tom have enough time to finish his project. Tom有足夠的時間,結果是可以完成他的項目。
第六,so + 形容詞/副詞+ as to…,意為「那麼…以至於…」:當從句的主語與主句的主語相同時,可用這個結構來引導結果狀語從句
【例】Tom was so kind as to phone for a taxi for me. 從句與主句的主語都是Tom。