What will happen if you come to school late ? I will miss some classes. If I come to school late.
What will happen if you come to school late ? If I come to school late, I will miss some classes. I will miss some classes if I come to school late.
It is going to rain tomorrow. I will stay in bed. If it rains tomorrow, I will stay in bed. if I will stay in bed If it rains tomorrow.
We grow more bamboo. Giant pandas will have more food. If we grow more bamboo, giant pandas will have more food. if Giant pandas will have more food if we grow more bamboo.
It is fine tomorrow, we will have a school trip. If it is fine tomorrow,we will have a school trip. We will have a school trip if it is fine tomorrow 。
I have enough money, I will travel around the world. If I have enough money, I will travel around the world. I will travel around the world if I have enough money.
It will be sunny tomorrow. We will have a trip tomorrow. We will have a trip if it is sunny tomorrow. If 在此引导一个条件状语从句。当主 句是一般将来时， if 引导的从句必须 用现在时来表示将来可能发生的动作 或存在的状态。
‘If’-clause 从句 (simple present tense 一般现在时 ) Main clause 主句 (simple future tense 一般将来时 ) If we grow more bamboo, giant pandas will have more food. If we do not protect giant pandas, they will die.
We need a _______(comma, full stop) after the ‘if’—clause when it is the first part of a sentence.
我们用 if 条件状语从句来谈论 “ 可能的 行动导致的可能的结果 ” If we grow more bamboo, giant pandas will have more food to eat. Giant pandas will die if we do not protect them. Work out the rules
Why do I want to go to Beijing Zoo? 1. If I ___ (go) to Beijing Zoo, I ________ (learn) a lot about animals. 2. If I ______ (arrive) at noon, I ______ (see) the feeding of animals. 3. If I ____ (find) the Monkey Hill, I ________ (have) fun there. go will learn arrive will see find will have
4. If I _____ (watch) the animals carefully, I ______ (get) enough information for my class report ( 报 告 ). 5. If I _____ (finish) my report( 报告 ), I ______ (be) very happy. watch will get finish will be
Fill in the blanks 1. If Eddie ____ (die), no one ________ (look) after Hobo. 2. If Eddie and Hobo _________ (not have) enough food, they ________ (share) it. 3. Wild animals ______ (be) in danger if hunters ____ (keep) killing them. dieswill look don’t have will share will be keep
4. We _______ (keep) pandas safe from danger if we _____ (build) more reserves. 5. You ______ (see) some squirrels if you __ (go) to the zoo. 6. The baby panda ______ (live) on his own if his mother _____ (leave) him for two whole days. will keep build will see go will live leaves
7. If we ____ (build) the giant panda reserves, we ____________ (encourage) them to leave. 8. If we _______ (not do) anything, soon there ______ (be) no pandas in the world. build will encourage don’t do will be
Making comparisons. 1. If people find baby pandas alone, they _______ (take) them away. 2. If pandas are hungry, they ___ (eat) bamboo leaves. 3. If birds are frightened, they _______ (fly) away. will take will eat will fly
4. If there are many beautiful birds in the zoo, we _______ (take) a camera with us. 5. If a tiger ___________ (not have) food for 15 days, it ___ (die). doesn’t have will die will take