发布时间 : 星期二 文章2020版英语高分突破二轮复习 - - 板块1 语法填空 - 短文改错 限时规范训练 语言知识运用板块 - 练准度(3)更新完毕开始阅读f813e312988fcc22bcd126fff705cc1754275f78
解析：根据语境可知，空处指代空前一句中的“...writing a thank-you note.”，故B项正确。
答案：B 20．A.kindness C．value
B．joy D．confidence
解析：根据本文第一句中的“...expressing __1__ for kindness.”并结合全文内容可推知，在这个疯狂的世界中，善良(kindness)的表达仍然会有作用，故A项正确。
答案：A
Ⅱ.语法填空(15分)
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
People used to think that dinosaurs were always involved 21.____________ fights with each other.But scientists have discovered that dinosaurs were less “dinosaur-like” than we thought.In fact, 22.____________ is widely acknowledged that dinosaurs behaved much like us humans.Here 23.____________ (be) some ways that dinosaurs were like people.
When baby dinosaurs were born, the mother and many times even the father dinosaurs would stay with the babies in the nest，protecting them from predators (掠食者). The same could be said for 24.____________ (feed) the baby dinosaurs. Many parents 25.____________ (bring) food back to the nest, instead of taking the baby dinosaurs out on the hunt.
Scientists also now think that dinosaurs formed communities, or extended families. Dinosaurs that had 26.____________ (difficult) protecting themselves from predators traveled in large groups. A hungry meat-eating dinosaur would be less likely 27.____________ (attack) a group of 30 plant-eating dinosaurs.
This community idea works on the other side of the food chain, too. Predators formed groups, thus making the kill much 28.____________ (easy). One predator against a family of 7 plant-eaters didn't have much of a chance. But four 29.____________ five predators against that same family of 7 plant-eaters had a very good chance of getting all the food 30.____________ (need) for survival.
[语篇解读] 本文是一篇说明文。科学家发现越来越多的证据表明恐龙并不像我们料想的那样残暴。实际上，恐龙和我们人类的表现极为相似。
21．解析：be involved in是固定搭配，意思是“参与到……之中”。 答案：in
22．解析：it在句中作形式主语，真正的主语是后面that引导的主语从句。 答案：it
23．解析：本句使用了完全倒装，主语是后面的some ways，故谓语动词用复数；这里说的是现在的情况，用一般现在时。
答案：are
24．解析：介词for后面要用动名词，故用feeding。 答案：feeding
25．解析：恐龙已灭绝多年，这里说的是过去的事，用一般过去时。 答案：brought
26．解析：空格中所填单词在句中作had的宾语，需用difficult的名词形式。 答案：difficulty
27．解析：be likely to do sth.意为“很可能会做某事”。 答案：to attack
28．解析：much修饰比较级，表示程度，意思是“……得多”。 答案：easier
29．解析：four or five表示“四五个”。 答案：or
30．解析：needed for survival是过去分词短语作定语，修饰food，need与逻辑主语food之间是动宾关系。
答案：needed