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:客觀真理永遠(yuǎn)用一般現(xiàn)在時(shí)。如: says the moon goes around the earth. 時(shí)間狀語從句:在一個(gè)句子中作時(shí)間狀語的句子。時(shí)間狀語的連接詞:when(當(dāng)…時(shí)候) while(當(dāng)…時(shí)候) as(當(dāng)…時(shí)候) after(在…以后) before(在…以前) as soon as(一…就) since(自從…到現(xiàn)在) till /until(直到…才) by the time(到…為止)依舊是連接詞后加陳述語序。舉例:when當(dāng)…的時(shí)候(一般情況下主句是將來時(shí)的時(shí)候,從句要用一般現(xiàn)在時(shí)。)Mozart started writing music when he was four years old. 原因狀語從句:在一個(gè)句子中作原因語的句子。連接詞:由連詞because, since, as引導(dǎo), 也可由for, now that 等詞引導(dǎo)。舉例:I didn’t go to school yesterday because I was ill. 條件狀語從句連接詞:if如果, unless (=if not) 除非。(讓步)舉例:If it doesn’t rain tomorrow, we will go hiking. 目的、結(jié)果狀語從句目的狀語從句是指在一個(gè)句子中充當(dāng)目的狀語的句子。結(jié)果狀語從句是指在一個(gè)句子中充當(dāng)結(jié)果狀語的句子目的狀語從句連接詞so that, so…that , in order that 引導(dǎo)。結(jié)果狀語從句連接詞 so…that, such…that, so much/many…that引導(dǎo)。舉例:so…that 如此…以至于The scientist’s report was so instructive that we were all very excited. 讓步狀語從句讓步狀語從句是指在句子中作讓步的狀語的句子連接詞: though, although.,whether…or not舉例:Although he is rich, yet he is not happy. matter從句結(jié)構(gòu):no matter +特殊疑問詞疑問詞+陳述語序 或特殊疑問詞+后綴ever+陳述語序如:No matter what happened, he would not mind.注意:no matter 不能引導(dǎo)主語從句和賓語從句。定語是指在句子中用來修飾名詞、代詞的成分如:I will give my teacher a bunch of beautiful flower.(中beautiful就是定語)定語從句是指在一個(gè)句子中作定語的句子,定語從句要放在所修飾的詞后如:I have met the doctor who is in the hospital.定語從句的連接詞:連接代詞:who、which、whom、whose、that連接副詞:when、where、why在句子中起名詞作用的句子叫名詞從句。名詞從句的功能相當(dāng)于名詞詞組, 它在復(fù)合句中能擔(dān)任主語、賓語、表語、同位語、介詞賓語等,因此根據(jù)它在句中不同的語法功能,名詞從句又可分別稱為主語從句、賓語從句、表語從句和同位語從句。引導(dǎo)名詞性從句的連接詞可分為三類:連接詞: that, whether ,if (不充當(dāng)從句的任何成分)連接代詞:what, whatever, who, whoever, whom, whose, which連接副詞:when, where, how, why如:That she was chosen made us very happy.