1. If he should go to Qing Hua University， he would make full use of his time.

　　2. If he were to come here， he would tell us about it.

　　3. If he were free， he would help us.

　　4. If he studied at this school， he would know you well.

　　5. If I had seen the film， I would have told you about it.

　　6. If I had got there earlier， I would have met Mr. Li.

　　參考答案

　　1、如果他要上清華大學(xué)的話，他就會(huì)充分利用他的時(shí)間了。

　　2、如果他要來的話，他會(huì)通知我們一聲。

　　3、要是他有空的話，它會(huì)幫助我們的。

　　4、如果他在這所學(xué)校學(xué)習(xí)的話，它會(huì)對你很熟悉。

　　5、我如果看過這場電影，我會(huì)把電影內(nèi)容告訴你了。

　　6、如果我早點(diǎn)到那兒，我就會(huì)會(huì)到了李先生。

　　長難句翻譯：

　　1. The American economic system is organized around a basically private-enterprise， market-oriented economy in which consumers largely determine what shall be produced by spending their money in the marketplace for those goods and services that they want most.

　　2. Thus， in the American economic system it is the demand of individual consumers， coupled with the desire of businessmen to maximize profits and the desire of individuals to maximize their incomes that together determine what shall be produced and how resources are used to produce it.

　　3. If， on the other hand， producing more of a commodity results in reducing its cost， this will tend to increase the supply offered by seller-producers， which in turn will lower the price and permit more consumers to buy the product.

　　參考答案：

　　1. 參考譯文：美國的經(jīng)濟(jì)是以基本的私有企業(yè)和市場導(dǎo)向經(jīng)濟(jì)為架構(gòu)的，在這種經(jīng)濟(jì)中，消費(fèi)者很大程度上通過在市場上為那些他們最想要的貨品和服務(wù)付費(fèi)來決定什么應(yīng)該被制造出來。

　　2. 參考譯文：因此，在美國的經(jīng)濟(jì)體系中，個(gè)體消費(fèi)者的需求與商人試圖最大化其利潤的欲望和個(gè)人想最大化其收入效用的欲望相結(jié)合，一起決定了什么應(yīng)該被制造，以及資源如何被用來制造它們。

　　3. 參考譯文：另一方面，如果大量制造某種商品導(dǎo)致其成本下降，那么這就有可能增加賣方和制造商能提供的供給，而這也就會(huì)反過來降低價(jià)格并允許更多的消費(fèi)者購買產(chǎn)品。