语法填空专练（13）Recently Lindsay hasnt felt herself. She was a really good student, but her grades 1._(fall) since three months ago. This is because she sometimes has trouble 2._(concentrate) on her study. She also refuses 3._(talk) with teachers and friends. Whats worse, she feels 4._（tire）all the time but has difficulty in falling asleep. Her behavior attracts her mothers attention. Her mother asks her what 5. _(happen)to her, but she just cries.As a matter of fact, Lindsay is 6._(suffer) from clinical depression(临床抑郁症).What is clinical depression? It can be described as a mood which is 7._low that it affects your daily life 8._(serious).The first signs of it in teens are 9._(poor) school reports than before, learning difficulties and staying away from classmates and teachers. 10._you have these signs, dont worry. It is not so difficult to deal with clinical depression. There are many effective ways, such as medicine, small talk, more exercise and a balanced diet.语法填空专练（14）No body language can be more attractive than smiling. Not only can a beautiful smile make 1._(us) happy, but also it enables others to feel 2._(delight). Sometimes a smile is so powerful 3._it gives people who suffer from 4._(disaster) great courage. A little boy 5._(name) Lang Zheng, for instance, impressed and encouraged a great many people 6._a serious earthquake in Wenchuan. Right after he 7._(save) by the soldiers from the ruins, he smiled to them. His smile 8. _(be) like sunshine, 9._warmed people in sadness.We can say that without smile our life would be 10._(color) and difficult. It is suggested that we should smile as much as possible.3