(1)① Residents' income is the premise and foundation that affects consumption. Other things being equal, the more disposable income people have, the greater their consumption. ② The consumption level of residents is influenced by the expected income in the future. The expected expenditure on education and medical care inhibits residents' consumption in other aspects, which makes residents restrain their current consumption, which is also an important reason why residents' consumption demand is relatively insufficient. ③ The size of people's income gap is closely related to the overall consumption level of society. The widening income gap between urban and rural areas and the low income level of rural residents have restricted the growth of the overall consumption level of our society.

(2)① Vigorously develop productive forces and continuously promote economic development; ② Improve the distribution system and increase the proportion of residents' income in the national income distribution. ③ Improve the social security system and increase consumer confidence. ④ Strengthen macro-control and stabilize prices. ⑤ Help residents to establish a correct consumption concept.