Our body grows most while we are asleep. The _____ children usually need more sleep. After we have plenty of rest, we can do our lessons better. Boys and girls about fifteen need nine hours of sleep. If we don't get enough _____ air, we will feel tired when we wake up. While in bed, we mustn't _____ our head. Our lungs need to get enough air, so we'd better open our window _______ and let fresh air in. Scientists say that cool air is better than _____ and sleeping in heated rooms does no good to our health.
举一反三
- We need to<br/>brush our teeth ___ we sleep. () A: before B: after
- We should not rely on pocket calculators because ______.[A] they are not clever as our brains [C] they are harmful to our brains[B] we need to use our brains to prevent it from shrinking [D] we could not get enough practice on mathematics A: We should not rely on pocket calculators because ______. B: they are not clever as our brains C: they are harmful to our brains D: we need to use our brains to prevent it from shrinking [D] we could not get enough practice on mathematics
- To__________ our body, we need to do more exercise.
- 5. A. We need it in our office by next Monday.B. We don’t need the quotation.[br][/br] C. Our quotation is the lowest.
- Why do we need pauses in our speeches? A: We need pauses to punctuate our speech. B: We need pauses so that listeners have time to take in the information. C: We need pauses to control the flow of speech. D: We need pauses to emphasize some points.