During the day we work and play, and at night we sleep. Our body rests while we sleep. In the morning we are ready to work and play again. Our body grows most while we are asleep. Children who are tired usually need sleep. We can get better at our lessons after we have had plenty of rest. Boys and girls who are eight or nine years old need ten hours of sleep every night. Our body needs plenty of air when we sleep. If we do not get enough fresh(新鲜的) air, we will feel tired when we wake up. While in bed we must not cover our head. Our lung() needs to get enough fresh air. If we open our windows at night, we can have plenty of fresh air. Cool air is better than warm air. Boys and girls who want to be strong must get plenty of sleep. 

1. Our body grows most while we are        .

A. eating                           B. playing             C. sleeping            D. exercising

2. Too little sleep makes us        .

A. tired                             B. hungry             C. happy              D. grow

3. What may cause (促使) us to feel tired in the morning?           

A. Too much air during the sleep.      B. Not enough fresh air during the sleep.

C. Too much cold air during the sleep.  D. Too much sleep during the sleep.

4. How many hours of sleep should 9-year-old children have?           

A. 8 hours                        B. 9 hours            C. 10 hours          D. 11 hours

5. What doe s the lung need most?             

A. Fresh air.                      B. Covering.         C. Warm air.         D. Exercise.

 0  1079  1087  1093  1097  1103  1105  1109  1115  1117  1123  1129  1133  1135  1139  1145  1147  1153  1157  1159  1163  1165  1169  1171  1173  1174  1175  1177  1178  1179  1181  1183  1187  1189  1193  1195  1199  1205  1207  1213  1217  1219  1223  1229  1235  1237  1243  1247  1249  1255  1259  1265  1273  97155 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网