21 完形填空（20空）精练精析15篇-2023年高考英语语法重难点复习百题斩

2023年高考英语语法重难点复习百题斩-完形填空（20空） （2021·四川省南充市白塔中学高三阶段练习）Today we live in a world where GPS systems, digital maps, and other navigation apps are available on our smart phone. ____1____ of us just walk straight into the woods without a phone. But phones ____2____on batteries, and batteries can die faster than we realize. ____3____ you get lost without a phone or a compass, and you ____4____ can’t find north, a few tricks may help you navigate ____5____ to civilization, one of which is to follow the land. When you find yourself well ____6____ a trail, but not in a completely ____7____ area, you have to answer two questions: Which ____8____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. ____9____ , if you head downhill, and follow any H2O you find, you should ____10____ see signs of people. If you’ve explored the area before, keep an eye out for familiar sights — you may be ____11____how quic