If引導(dǎo)的時(shí)間狀語

1、If 引導(dǎo)的時(shí)間狀語引導(dǎo)的時(shí)間狀語從從句從從句Conditional sentences條件狀語從句的含義條件狀語從句的含義We use conditional sentences to talk about possible actions and the results of these action. The if-clause talks about a possible action . The main clause talks about the likely results. We can also put the if-clause after the main clause

2、.Things to remember We can also use modal verbs such as can in the main clause . For example: If you go to Beijing,you can visit the summer palace.Something very important The verb in the if-clause is in the simple present tense. The verb in the main clause is in the simple future tense.If 引導(dǎo)的條件狀語從句

3、的引導(dǎo)的條件狀語從句的位置和結(jié)構(gòu)位置和結(jié)構(gòu) If 引導(dǎo)的條件狀語從句在句中的位置引導(dǎo)的條件狀語從句在句中的位置比較靈活，可以放在主句之前（比較靈活，可以放在主句之前（這時(shí)這時(shí)要用逗號(hào)和主句隔開要用逗號(hào)和主句隔開），也可以放在），也可以放在主句之后（主句之后（中間不用逗號(hào)中間不用逗號(hào)）。）。 If 引導(dǎo)的條件狀語從句的結(jié)構(gòu)：引導(dǎo)的條件狀語從句的結(jié)構(gòu)：If+陳陳述述句，主語句，主語+謂語謂語+其他?；蚱渌??；?主語主語+謂語謂語+其他其他+if+陳述句。陳述句。 意為意為“如果如果-就就-”。For example If you ask him ,he will tell you the answ

4、er.-He will tell you the answer if you ask him. If you study hard ,you will pass the examination.-You will pass the examination if you study hard.* * * 如果主句中含有如果主句中含有must,may,can等情等情態(tài)動(dòng)詞，從句要用一般現(xiàn)在時(shí)。態(tài)動(dòng)詞，從句要用一般現(xiàn)在時(shí)。 If you drive too fast,you may have an accident. You must stop if the traffic light is rig

5、ht. If you go to Beijing ,you can visit the Great Wall.單項(xiàng)選擇單項(xiàng)選擇 1 We will have a picnic it dose not rain tomorrow. A though B unless C until D if 2 If the weather fine,we have a sports meeting this weeked. A will be ; will B is ; will C was ; would D is ; wouldTRAVEL GUIDE Shopping If you go to ,you . Eating If you go to ,you . Sightseeing If you go to ,you .Translation 1如果你讓輪子變圓，他們會(huì)轉(zhuǎn)的容易些。如果你讓輪子變圓，他們會(huì)轉(zhuǎn)的容易些。 。 2