D
句意:以下哪项不正确?
A.当小狮子在洞里发现很多肉时,他很高兴。
B.小狮子在洞里吃午饭。
C.小狮子出不了洞。
D.小狮子病了,因为他吃肉太多了。
根据第二段1~2行:Little Lion goes into the hole and finds a lot of meat in it . He is very happy.(小狮子走进洞里,发现里面有很多肉。他很高兴。)可知A正确。
根据第三段第一行:He starts to eat the meat in the hole . He has a big lunch .(他开始吃洞里的肉。他吃了一顿丰盛的午餐。)可知B正确。
根据第三段第二行:He eats too much . He becomes big,so he can't get out of the hole now.(他变大了,所以现在出不去洞了。)可知C正确。
文中并未提到小狮子生病的信息,D信息属于无中生有,错误。
故选D