1.Many people don't like having to drive in the rain. They do not know that _______. You see, engines need cool air to run smoothly. Rainy days provide cool air, Cooler air is denser, or heavier, than warm air. So when it is cool outside, an engine takes in more air. More air in the engine brings more power. More air also prevents engine knock, which is the sound of a poorly running engine. Engines run best when the weather is wet.
① wet weather can be good for a car
② they should not drive trio fast at night
③ they need to check engines in the rain
④ they should not drive while they're drunk
⑤ braking distances are greater on wet roads
2.There is considerable evidence that in many ways. _______. More males than females die in the first year of life. In all societies, men die at an earlier age than women (an average of seven years earlier in the United States). They are more likely to have heart problems. They are more likely to be hospitalized for mental illness, Although women attempt suicide more often than men, men are three times as likely to succeed in killing themselves.
① males are weaker than females
② females are weaker than males
③ males are cleverer than females
④ females are cleverer than males
⑤ females are braver than males |