(1) It is hoped that we should place much emphasis on/pay more attention to 。。。
(2) To conclude，we can see that (the best way/the possible solution)is。。。
(3) In short，(shortages of water，decrease of fertile fields and environmental pollution)are the major problems to be solved to(increase rain production)。
(4) In order to make our world a better palce in which to live we should make great efforts to。。。
(5) In a word ，there are three suggestions we must follow ，only in this way can we(achieve a great success)。
(6) It is time for us to take an actie part in。。。
(7) Let us work hand in hand in hand to(solve these social problems)
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