请先通读下面短文,掌握其大意,然后从每小题所给的 A、B、C、D 四个选项中选出最佳选项。
You are on a camping trip with your family in the wild(野外$). It's starting to get dark. Your parents ask you to find some dry \underline{21}. They need to start a campfire. You get into the forest and find an open space. Sticks are all over the ground. You gather a lot and start to go back. But which way? “The path must be here \underline{22},” you say to yourself. “Why can't I find it?”$
You're worried and afraid. A shiver(颤抖$) runs \underline{23} your body. What would happen if you got lost? Would you have the skills to \underline{24}? How can you prepare yourself?$
Shelter(庇护所) & Food
$Always remember to carry \underline{25} with you. Put into your pocket. These dried fruit and energy bars can keep you living \underline{26}. Then try to take a plastic sheet($塑料床单$) with you if you can. You'll soon find out \underline{27}. In summer, the plastic sheet can keep you from the rain. And in winter, it can protect you from cold and wind.$
Wild Animals
$Most wild animals are not dangerous. Large animals, such as wolves, seldom come near people. But be sure to \underline{28} food up in a tree, away from your shelter, so these large animals can't reach it. Smaller animals are a bigger worry. You may get hurt by a snake. You should be very \underline{29} if snakes come close to your shelter. Always check your clothes before you go to sleep and get up.$
$Remember, people will be \underline{30} for you! If you are lost in a forest, just make sure you follow the tips, and everything will be OK!$
()21. A. corn B. wood C. sand D. food
()22. A. somewhere B. anywhere C. nowhere D. everywhere
()23. A. above B. towards C. through D. below
()24. A. spread B. produce C. repair D. survive
()25. A. snacks B. clothes C. money D. knives
()26. A. apart B. long C. forever D. together
()27. A. where B. what C. why D. who
()28. A. reach B. pick C. add D. hang
()29. A. careful B. excited C. happy D. relaxed
()30. A. building B. looking C. cheering D. raising

21. B ［解析］考查名词辨析。句意：父母让你找一些干柴。corn 玉米；wood 木头，木柴；sand 沙子；food 食物。根据“They need to start a campfire.”可知，他们需要生篝火，所以让你找干柴。故选 B。
22. A ［解析］考查副词辨析。句意：你自言自语道：“小路一定在附近的某个地方。”somewhere 在某处；anywhere 在任何地方；nowhere 无处；everywhere 到处。根据“Why can't I find it?”可知，小路一定在附近的某个地方，你却找不到。故选 A。
23. C ［解析］考查介词辨析。句意：你浑身一颤。above 在……上方；towards 朝，向；through 穿过；below 在……下方。根据“You're worried and afraid.”可知，你既担心又害怕，所以是颤抖穿过了身体。故选 C。
24. D ［解析］考查动词辨析。句意：你有生存的技能吗？spread 传播；produce 生产；repair 修理；survive 生存。根据“What would happen if you got lost?”可知，是在问如果你迷路了会发生什么，所以这里是询问你是否有生存的技能。故选 D。
25. A ［解析］考查名词辨析。句意：永远记得随身携带零食。snack 零食；clothes 衣服；money 钱；knife 刀。根据“These dried fruit and energy bars can keep you living”可知，这些干果和能量棒能让你活下去，而它们属于零食。故选 A。
26. B ［解析］考查副词辨析。句意：这些干果和能量棒能让你维持较长时间的体力。apart 分开；long 长久地；forever 永远；together 在一起。根据语境可知，携带这些零食是为了在困境中维持生命，让你活得长久。故选 B。
27. C ［解析］考查疑问词辨析。句意：如果可以的话，尽量带一块塑料床单。你很快就会明白原因。where 在哪里；what 什么；why 为什么；who 谁。根据“In summer, the plastic sheet can keep you from the rain. And in winter, it can protect you from cold and wind.”可知，夏日，塑料布可挡雨，冬日能御寒防风，下文解释了带塑料床单的原因。故选 C。
28. D ［解析］考查动词辨析。句意：但是一定要把食物挂在树上，远离你的庇护所，这样这些大型动物就够不到它。reach 到达；pick 采，摘；add 添加；hang 悬挂。根据“away from your shelter, so these large animals can't reach it”可知，把食物挂在树上才能让大型动物够不到。故选 D。
29. A ［解析］考查形容词辨析。句意：如果有蛇靠近你的庇护所，你应该非常小心。careful 小心的；excited 兴奋的；happy 开心的；relaxed 放松的。根据“You may get hurt by a snake.”可知，你可能会被蛇咬伤，所以当蛇靠近庇护所时要非常小心。故选 A。
30. B ［解析］考查动词辨析。句意：记住，会有人来寻找你！build 建造；look 看；cheer 欢呼；raise 举起。根据“If you are lost in a forest”可知，如果你在森林里迷路了，会有人来寻找你。look for 意为“寻找”，为固定短语。故选 B。