细节理解题。根据The Wonderful Things You Will Be中With beautiful and sometimes humorous pictures, this is a book that parents will love reading over and over to kids, calming them down before sleeping.可知，The Wonderful Things You Will Be是睡前故事的最佳选择。故选A。

【2题详解】

细节理解题。根据Peek a WHO中$ 4.06；With colorful pictures and simple rhyming texts, the guess of who's hiding on the next page, and the bright and attractive pictures will keep children guessing and laughing all the way可知，你为一个捉迷藏的情人买一份合适的礼物应该花$ 4.06。故选B。

【3题详解】

推理判断题。根据Karina Garcia's DIY中Get ready to become a slime (软泥) master with fifteen DIY projects! Full-color and with step-by-step pictures, this book also includes tips on how to store your slime,可知，我们能从Karina Garcia's DIY中了解到"如何保持软泥在良好的状态"。故选D。

　　Inner Mongolia Autonomous Region is an important ecological screen for the north of China and even the whole country. Building a green great wall to ensure China's ecological security is one of the most important things of autonomous region.

　　The largest ecological function zone in the north of China, Inner Mongolia has a variety of landscapes, including forests, grasslands, wetlands, rivers and lakes. In recent years, the region's environment has improved, with its forest and grassland area having increased and desert reduced.

　　However, it still faces a number of challenges in ecological preservation. For instance, the region faces severe water shortages with the number of lakes dropping from 427 in 1987 to 145 in 2010. In addition to a lack of rainfall, huge water consumption in agricultural and industrial production has worsened the water shortage. Too much use of fertilizers has damaged the soil and affected the growth of grass, accelerating the expansion of the desert, which results from a lack of water.

The local government encourages planting trees on grassland as they can get more pay for trees than by growing grass. However, the trees they plant often have a low