D. 完形填空。 Now in some places of our country, many people are cutting down (砍伐 ) the trees in the forests. They need more 26 to build houses and more farmland to grow crops and so on. The areas of forests are getting 27 . Some scientists say that there 28 no big forests in 20 or 30 years. It is really a(n) 29 thing. 30 the forests, we will have sandstorms (沙尘暴 ) often. The weather will get 31 . The earth will become a big desert (沙漠 ). A lot of plants and animals will 32 . Crops will not grow anywhere. Life will be 33 for everyone. So we should do our best 34 our living environment and keep our mountains 35 , the water clean, and the sky blue. ( )26. A. woodB. moneyC. desertsD. leaves ( )27. A. bigger and biggerB. less and less C. smaller and smallerD. more and more ( )28. A. hasB. haveC. will haveD. will be ( )29. A. excitedB. happyC. betterD. terrible ( )30. A. WithB. UnderC. WithinD. Without ( )31. A. wet and coldB. hot and dryC. cold and dryD. hot and wet ( )32. A. comeB. liveC. dieD. turn ( )33. A. difficultB. easyC. enjoyableD. poor ( )34. A. protectB. to protectC. protectingD. protected ( )35. A. clearB. freshC. greenD. blue