The world is divided into two parts. One half of the world is rich and 26 is poor. In the poor part, a lot of people have 27 got enough to eat. When they are ill, none of the 28 can receive them because they have no money. In the rich 29 , people eat very well, 30 a dog or a cat in North America eats   31 than a child in poorer countries. The poor countries have some difficult problems. Sometimes the land is too poor to grow 32 on. People there have 33 rich land nor enough water. The land 34 be made better, but a lot of things must be done. The people must be taught and water must 35 . But rich countries have problems, too. There are not always good places to 36 . Sometimes the air is not clean and the rivers are too 37 to swim in or to drink. The roads and streets are full of people and cars. Cars and buses have to move 38 . Noise is too much. Some people have no houses to live in. Something must be done about these problems. The air and the rivers must be cleaned and be 39 clean. More houses have to be built. 40 these things cannot be done easily. 小题1: A．others B．the other C．another D．the others 小题2: A．never B．neither C．nor D．no 小题3: A．schools B．factories C．malls D．hospitals 小题4: A．family B．people C．country D．part 小题5: A．still B．ever C．yet D．even 小题6: A．better B．more C．less D．well 小题7: A．anything B．everything C．something D．nothing 小题8: A．both B．no C．not D．neither 小题9: A．must B．will C．can D．need 小题10: A．find B．be finding C．be found D．found 小题11: A．stay B．live C．live in D．sleep 小题12: A．dirty B．small C．wide D．deep 小题13: A．straight B．slowly C．quickly D．carefully 小题14: A．kept B．worked C．done D．become 小题15: A．And B．But C．Because D．So