of the consequenses, but in the process he has succeeded in layingwasteful vast expanses of forests and croplands. If our2.__________
查看答案
extending population is not to suffer from shortages and pollution 3.__________in the future, a great effort must be made to repair some of
in the future, a great effort must be made to repair some ofthe damages already done and to stop more harm from done. A 4.__________
few people throughout the world are becoming less aware of our 5.__________past mistakes and are striving to halt this destruction and to revert
to the use of methods from which will give us full use of our 6.__________resources without destroying them. The job may be a long one,