When people do not get enough food, they cannot grow strong or healthy. We should include plenty of (46) v______ and other plant-based foods in our diets. They provide necessary nutrients (营养) for our (47) h______.
Scientists are working hard to make sure that everyone can have (48) e______ food to eat. They are thinking of all kinds of new ways to (49) g______ plants. For example, they create plants that can survive in difficult conditions, and use technology to grow fresh food in (50) p______ like deserts (沙漠).
It's quite challenging for plants to live in deserts because they are very hot, have very (51) l______ water, and have poor-quality soil. Sometimes there is even salt in the soil, which makes it (52) h______ for most plants to survive.
However, over time, plants have (53) w______ out clever ways to deal with the challenges of living in the desert. Desert plants have small, narrow leaves or wax layers (蜡层) on their leaves to (54) p______ themselves from the sun. They also have deep roots (根) that go far into the ground for (55) w______. Some plants can take in salt and store it in their cells.
解析：
46题：缺名词，and后是other plant-based foods 其他植物性食物，所以前面也得是是一个植物性食物，结合首字母v，vegetables
47题：缺名词，为身体/健康提供营养，结合首字母h，health
48题：缺形容词，首段说people do not get enough food，这里应该就是科学家确保每个人都能有足够的食物，结合首字母e，enough
49题：缺动词，to do 不定式用动词原形，要确保足够的食物就要想各种办法种植物，结合首字母g，grow
50题：缺名词，空格后是 like deserts 举例说明，说明是指像沙漠一样的地方，结合首字母p，places
in place 在正确位置，准备就绪
in places 在某些地方
51题：缺形容词，沙漠非常热，没什么水，结合首字母l，little
52题：缺形容词，句式make it + 形容词 + for sb to do，salt in the soil（土壤中有盐）使得大多数植物很难生存，结合首字母h，hard
官答还有harder
53题：缺动词，However前说很难生存，转折后是想出解决办法，谓语have done，结合首字母w，worked
work out 解决 work out a problem
想出/制定 work out a plan / a way / a solution
锻炼 work out regularly to keep fit
计算出 work out how much food we’ll need
54题：缺动词，to do 不定式用动词原形，小而窄的叶子或者表面有蜡层是为了保护自己免受阳光伤害，结合首字母p，protect
protect ... from sth 保护... 免受 … 的伤害
prevent/stop/keep ... from doing sth 阻止某人做某事
55题：缺名词，植物的根深入地下是为了找水，结合首字母w，water
