reinforce:vt.strengthen加强 e.g.More troops were sent to reinforce the fortress. Most modern buildings are made of reinforced concrete. 12.Perhaps this tells us that people need to know one another to be at their honest best. (l)at one's best:in one's best condition or state在最佳状态 e.g To see this part of the countryside at its best,you need to come in April He acted in all kinds of plays,but he was at his best in comedy. at their honest best:at their best as far as honesty is concerned (2)This sentence tells us that People need to know one another well if they are to treat one another as honestly as possible. 13.There is some evidence that dishonesty may ebb and flow. Ebb and flow (of Sb/sth):the repeated,often regular,movement from one state to another涨落，起伏，消长 e.g.She was suffering a mysterious ebb and flow of mood. Watching the magnificent view of the ebb and flow of the tides fills me with an inner contentment that I find nowhere else. 14.And when times get better such incidents tend to go down. tend to:be aptto,have a tendency to倾向 e.g.Farmers tend to use more machinery now. Children tend to like action movies. 15.Surprisingly,some efforts to prevent cheating may actually encourage cheating-a person feel"they don't trust me anyway,"and be tempted to beat the system” (I)）tempt:v. I)persuade(sb.)to dosth.wrong or foolish引诱，诱惑 e.g.He tried to tempt me to cheat on the examination. The serpent tempted Eve to eat the forbidden fruit. 2)attract吸引：诱导 reinforce: vt. strengthen 加强 e.g. More troops were sent to reinforce the fortress. Most modern buildings are made of reinforced concrete. 12. Perhaps this tells us that people need to know one another to be at their honest best. (1) at one’s best: in one’s best condition or state 在最佳状态 e.g. To see this part of the countryside at its best, you need to come in April. He acted in all kinds of plays, but he was at his best in comedy. at their honest best: at their best as far as honesty is concerned (2) This sentence tells us that People need to know one another well if they are to treat one another as honestly as possible. 13. There is some evidence that dishonesty may ebb and flow. Ebb and flow (of Sb/sth): the repeated, often regular, movement from one state to another 涨落， 起伏，消长 e.g. She was suffering a mysterious ebb and flow of mood. Watching the magnificent view of the ebb and flow of the tides fills me with an inner contentment that I find nowhere else. 14. And when times get better such incidents tend to go down. tend to: be apt to; have a tendency to 倾向 e.g. Farmers tend to use more machinery now. Children tend to like action movies. 15. Surprisingly, some efforts to prevent cheating may actually encourage cheating — a person feel “they don’t trust me anyway,” and be tempted to “beat the system”. (1) tempt : v. 1) persuade (sb.) to do sth. wrong or foolish 引诱，诱惑 e.g. He tried to tempt me to cheat on the examination. The serpent tempted Eve to eat the forbidden fruit. 2) attract 吸引；诱导