2018年高考英語重難點總結
if conj. a. （表示真實條件句）如果：
if he told you that, he was lying. 如果他是那樣對你說的，他就是在說謊。
if it rains tomorrow, we will stay at home. 如果明天下雨，我們就不出去。
（注意：if條件句要求用一般現在時表示將來，不用will表示將來；只有在表示“愿意”或“不愿意”時， if后才可以跟will或won't；if you won't come, i will go alone. 如果你不愿意來，我就一個人去。
）
b. （表示假設條件）假如（用虛擬語氣，謂語中有were， had， should 時，可以把if 省去，并把這三個詞提到句首。）：
if i were you (或were i you), i would help her. 我要是你的話，我就會幫助他。（與現在事實相反）。
if i had not (had i not) miss the train, i would have got home by now. 假如我沒誤了火車，現在早該到家了。（與過去事實相反）。
if anyone should (should any one)call, please let me know. “萬一友人打電話來，請告訴我一聲（與將來事實相反）。
名題精選：the men will hav to wait all day ___ the doctor works faster(春高考題）
a. if b. unless c. whether d. that
答案：b. faster用了比較級給學生以提示“除非（unless）醫生能干得更快些，否則這些人們將不得不等他一整天。
7. although body language and their face are important in their shows, they do not use the make-up that clowns use. 盡管他們的肢體語言和面部表情在他們的表演中很重要，但他們不化像小丑一樣的妝。
[問]能詳細地講講althought一道的讓步狀語的情況嗎？
[答]好的，although conj. 雖然；盡管：although he is very old, (yet)he is quite strong. 他雖然年紀大了，身體還很健壯。although與though這兩個詞都可做連詞，引導讓步狀語從句，意思是“雖然……但是”，在英語里如果用了although或though， 就不能再用but,但可以用yet或still：雖然他身體不好，但是他工作努力。正：although (though)he is in poor health, (yet)he works hard. 正：he is in poor health, but he works hard. 誤： although he is in poor health, but he works hard. although 較正式，多用于句首； though 在非正式語體中較為普遍，但下列用法中，不能用although， 要用though：1. though 可以用在倒裝句中：young though he is, he is quite experienced. 他雖然年輕，但很有經驗。2. though可以作副詞，表示“然而”，放在句末或其他位置：he said he would come, he didn't, though. 他說他要來，結果卻沒來。
8. what comedians have in common with the players in a comedy is their way of playing with words. 喜劇演員與喜劇的表演者達到共同之處在于他們運用語言的方式。
[問]請問這是一個怎么樣的復合句？
[答]本句確是一個復合句，它是一個主語從句， what comedians have in common with the players in a comedy 是本句的主語，下面我們對主語從句進行歸納，主語從句是名詞性從句的一種。
（1）主語從句可以直接放在句首；也可以用it作形式主語，而將從句放在句末。
例如：that light travels in straight lines is known to all.