七、句子類型（2）
　　4. 并列復(fù)合句
　　____, and____,which____.
　　Undoubtedly, practical courses can be used to the reality, and it is easier for university students to realize their potentials and talents, which is of vital importance to their further development in the future.
　　There are many dangers that one can face in a new and different environment and the best way to protect yourself is to be well aware of possible dangers before you depart.
　　5. 多重復(fù)合句
　　Many parents point out that children spend too much time playing computer games which have little educational value, so children should be prevented from computer games.
　　However, we must admit that it would be a mistake to neglect theoretical knowledge in that they are the cornerstones of many practical courses and help students cultivate their logical thinking and judgment.
　　許多人認(rèn)為有國(guó)外學(xué)歷的人比沒(méi)有的人賺的多。
　　事實(shí)上，有無(wú)數(shù)大學(xué)畢業(yè)生報(bào)怨他們?cè)趯W(xué)校里學(xué)到的知識(shí)卻不能轉(zhuǎn)變?yōu)橛杏玫墓ぷ骷寄堋?br />　　應(yīng)該創(chuàng)造這樣一種環(huán)境，孩子們可以充分發(fā)揮他們的才能和潛力，以便長(zhǎng)大后為社會(huì)作出最大的貢獻(xiàn)。
　　當(dāng)機(jī)會(huì)到來(lái)的時(shí)侯，只有作好充分準(zhǔn)備的人才會(huì)優(yōu)勝于他們的同齡人，因?yàn)樗麄兲崆案冻隽似D苦的努力。
　　盡管這一觀點(diǎn)被廣泛接受, 很少有證據(jù)表明暴力犯罪率與大眾媒體的暴力數(shù)量有直接關(guān)系。
　　大部分學(xué)生相信業(yè)余工作會(huì)使他們有更多機(jī)會(huì)發(fā)展人際交往能力, 而這對(duì)他們未來(lái)找工作是非常有好處的。許多市民抱怨城市污染嚴(yán)重, 以至于他們每天都要吸入有毒的氣體, 這對(duì)他們的健康是十分有害的。