用關(guān)聯(lián)詞語把句子連成一句話。   
1．威尼斯是世界聞名的水上城市，河道縱橫交叉。  
     小艇成了威尼斯主要的交通工具，等于大街上的汽車。 
                                                                                                                                                    
                                                                                                                                                    
2．秦王不敢進攻趙國。趙國武有廉頗，文有藺相如。 
                                                                                                                                                    
3．非洲植物世界是彩色的。非洲動物世界也是彩色的。