1、主将从现主 将 从 现 是 指 在 时 间 状 语 从 句 和 条 件 状 语 从 句 中 ， 如 果 主 句 是 一 般 将 来 时 ， 从 句 用 一 般 现 在时 替 代 一 般 将 来 时 。常 见 的 有 以 下 四 种 情 况 ：一 、 条 件 状 语 从 句 的 主 句 是 一 般 将 来 时 ， 那 么 从 句 常 常 用 一 般 现 在 时如 ： When I grow up, Ill be a nurse and look after patients我 长 大 后 要 当 一 名 护 士 ， 照 顾 病 人二 、 如 果 主 句 是 祈 使 句 ， 那 么 从 句 通 常
2、 要 用 一 般 现 在 时如 ： Dont laugh at me when I make a mistake. 我 犯 错 误 的 时 候 不 要 笑 话 我 。三 、 如 果 主 句 是 含 有 情 态 动 词 的 一 般 现 在 时 ， 根 据 需 要 从 句 多 用 一 般 现 在 时如 ： You should be quiet when you are in the reading room在 阅 览 室 时 应 保 持 安 静四 . 如 果 if 的 条 件 状 语 从 句 遇 到 变 换 间 接 和 直 接 时 , 祈 使 句 应 用 not to如 ; She said n
3、ot to close the window常 见 的 时 间 状 语 从 句 的 连 词 有 ： as soon as,when,while ,as,until 等主 将 从 现 说 的 是 在 含 有 时 间 状 语 从 句 和 条 件 状 语 从 句 的 主 从 复 合 句 中 ， 如 果 主 句 的 时 态 是 一 般将 来 时 ， 那 么 从 句 要 用 一 般 现 在 时 。 例 如 ：I will tell him about it when he comes.If it is fine tomorrow, we will go outing.如 果 主 句 的 时 态 是 过
4、去 将 来 时 ， 那 么 从 句 要 用 一 般 过 去 时 。 例 如 ：He said that he would have another try if he had the chance.I knew he could help me if he was free the next day. 任务设计任务 I. 请用正确的形式填空。1. If I come, I _ ( see ) you.2. If it is fine, we_( go ) for a walk.3. If it rained, they _ ( stay ) at home.4. You will spoil
5、it if you _ ( not be ) careful.5. We would be very much pleased if you _( come ).6. Will you help me if I _ ( need ) you.7. They will get wet if it _ ( rain ).8. What a pity I havent got my car. If I had, I _( take ) you to the airport.9. We would answer if we _( can ).10. If you eat too much, you _
6、( get ) ill.任务 II. 请根据给的线索将下列句子补充完整。Aeg. If I were poor, I would do my shopping in cheaper stores.1. If I were trapped in a lift,_.2. If I had a flat tire on my way home,_.3. If I heard a noise outside my apartment in the middle of the night,_.4. If someone was following me down a dark street, _.5.
7、If I were short of five yuan for a tennis racket, _.6. If I found a wallet in the street with a lot of cash in it, _.B. eg. If I won one million dollars in the lottery , Id put it in the bank and watch it grow.1. _, Id leave my home city.2._ , I might not speak to you again.3._, Id be very miserable
8、.4. _, Id be frightened.5._, Id be extremely happy.任务 III. 综合题：请根据上下文完成对话。1. A: What are you doing this evening?B: Im not sure. If there _ ( not be ) anything good on TV. I think I _(read) a detective story. Or maybe I_ ( go ) to bed early.2. A: What time will Kate be home?B: If I _(know) I _(tell)
9、you. But unfortunately, she didnt say a word with me because we argued yesterday.A: Well, if she _(get) home before 10:00, please ask her to call me.3. A: Im so stressed out.B: Its none of my business, but if I _( be )you, I _( take ) some time off.4. A: Im afraid your flight has been delayed due to
10、 bad weather.B: Oh no! When will it take off?A: We dont have any idea yet. If it_ ( stop ) snowing this evening, then your flight _ (depart) some time tonight.A: What are the chances that will happen?B: Its too early to tell. I _( let ) you know if I _( hear ) any news.参考答案及分析重点 2任务 I1. will see, 2.
11、 will go 3. would stay 4. are not 5. came6. need 7. rains 8. would take 9. could 10. will get任务 II. A.I would call up the police.2. I would run to the repairing station.3. I wouldnt sleep at all.4. I would run the fastest.5. I would borrow it from my parents.6.I would give it to the police.B. 1. If I did something wrong2. If you said something bad about me3. If I had little pocket money4. If I heard a strange noise at night5. If I got good grades in the mid-term test,任务 III.1isnt, will read, will go 2. knew, would, gets3. were, would take 4. stopped, would, depart, will let, hear
