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3. Before winning the games, the city prepared a strong bid. 4. After winning the bid, they started building stadiums. 5. By winning the bid, the city received a lot of investment. 6. By building a new underground, the city improved its transport system. *真實條件句 條件狀語從句 :“如果 …… ,那么 ……” If+從句 主語 +一般現在時 , 主句 主語 +will/won’t+動詞原形 條件狀語從句中一般不用將來時態(tài) 在表示將來要發(fā)生的動作時,要用將來時態(tài)。但是,在條件狀語從句中用一般現在時態(tài)而不用一般將來時態(tài)。 eg : If you go to England next year , you’ll learn a lot of English . If Carol es here tomorrow , I’ll tell her all about it . 主句謂語動詞的幾種不同形式 1) 主句中的謂語形式通常是: will + 動詞。 eg : If we leave now , we’ll catch the 11:30 train . I’ll give you another book if you don’t like this one . 2) 在表示客觀真理,自然 規(guī)律等時,主句中的謂語動詞可以用一般現在時。 eg : If you heat ice , it turns to water . If one eats too much , he gets fat . 3) 有時主句中的謂語可以是:情態(tài)動詞 ( should , must , could / can , might / may ) + 動詞。 eg : We should help him if he asks . If it rains , we can stay at home and watch TV . If it’s too cold tomorrow morning , I might e by bus . Activity 15(Page158): 1. If we host the Olympic Games, the government will spend a lot of public money. 2. The government won’t have enough money for schools and hospitals if it spends a lot of money on the Olympic Games. 3. If tourists e to the Olympics, they will spend a lot of money in the country. 4. Ordinary people will benefit if the government builds/build new sports stadiums. 5. If they sell tickets on the black market, it won’t be fair for ordinary people. 6. If the city loses the bid now, it won’t try again for many years. 7. If a country wins a lot of medals, the people will feel proud. 8. The city will look really good if the government carries/carry out all the improvements they promise.