1Key words and expressions:air pollutionsustainable developmentclassified rubbishplant treesvehicle2Key words and expressions:over-consumebeyond their earningsnecessity resist temptation realistic financial plan be of great help .rational3Key words and expressions:average life spanfamily planning policyattach importance to the problem of aging populationduty to support parentsthe only childpressure bear too many responsibilities4Key words and expressions:communicate effectively with the power of wordspositive and negative force be mindful of parent-child relationship stupid 5Key words and expressions:overpopulationlimited resourcesundertakeburdennew resources 6Key words and expressions:consumption abroadpotential consumersluxury goodsconsumptive powerrational consumptioneconomic developmentwealthy lifestyle7Key words and expressions:stressfulpay mortgage for the houseget promotionraise childrenrun a carhandle stressto ease stressWearing Glassesgraduation picturesexam-oriented education （应试教育）myopic (近视) students9. Public Moralitythe spirit of Lei Feng10. Environmental Protectionsand stormtree stumps