单项选择1. If I _ C___ your book, I'll give it to you. A. will find B. have found C. find D. finds2. If I found your book, I D _ give it to you. A. will B. had C./ D. would3. If he B the exam, he would fail it. A. would take B. took C. will take...
if或whether在引导宾语从句中作“是否”讲,常用在ask,care,wonder,know,等动词后引出带有疑问意义的宾语从句.从句语序保持陈述语序,if或whether不充当成分,只起连接作用,不可省. 区别：whether可以引导介词后的宾语从句,if不可以. I worry about whether I hurt her feeling. I wonder if/whether...
1. if 引导条件状语从句时，意思是“如果”，多数情况下，主句与从句可调换顺序而意思不变，并且当主句用一般将来时态时，从句要用一般现在时（简称主将从现）。例句：If it rains tomorrow, we won't play football. （如果明天下雨，我们就不踢足球。）Please give this book to Li Ping if he...
I. if引导的宾语从句 if 引导宾语从句时，意思为：是否，从句的时态通常要和主句保持一致。【例句】I want to know if he lives there.我想知道他是否住在那儿。He asked me if I could help him.他问我是否能帮他。【考查点】if、whether引导的宾语从句的区别 1. if或whether引导宾语从句时，...
"if"通常用于条件句中，表示条件是否成立。例如：I don't know if I can come to the party.（我不知道我能不能参加聚会。）"whether"通常用于选择句中，表示两种可能性之间的选择。例如：She asked whether I wanted tea or coffee.（她问我是想要茶还是咖啡。）同时，"whether"也可以用于间接...
He shall return that book tomorrow. 明天他必须把那本书归还。 ④第一人称问句使用“shall”。 Shall I call you a taxi? 需要我替你叫一辆计程车吗? Shall we tell her the truth? 我们可以把实情告诉她吗? ⑤问句是“Shall…?”,答句就用“shall ~”;问句用“Will …?”,答句就用“will ~ ”。
Please give this book to Li Ping if hecomes here.如果李平来这里，请把这本书给他。If you are late again, I'll tell yourfather.如果你再迟到，我就告诉你父亲。I'll be very grateful if you can help mecarry the bag.如果你能帮我搬这个包，我会非常感谢你的。如果 if 条件句谈论...
1.if引导的条件状语从句，在if引导条件状语从句中要用现在时态替代将来时，类似还有连词before，as soon as，while，when等。2.零条件句/绝对真实条件句(Zero Conditional)零条件句，又叫绝对真实条件句，用于阐述事实。用来表达在该条件下，结果一定会如此(如规则，客观规律、真理等)。结构是：If+主语+...
If you have finished reading this book,please return it to me 如果你念完这本书,请把它还给我 Do you mind if I open the window?如果我打开窗子,你介意吗?(我可以打开窗子吗?)I shall tell him if he comes 如果他来了,我会告诉他 2.用于虚拟语气中 a.If you knew how I suffered,...
Book deals with. Zero t. The usual order in which you do things or the things you really do. Reason. Reason. An idea or a picture? You a musician. Schedule. Wednesday today. Plan or timetable? Person. A very strong feeling of love. Hate, anger is. A science. S s. Oh, thanks....