考查非限制性定语从句。____3____recognized Anna's remarkable talent.是一个非限制性定语从句，先行词是an art collector，关系词在从句中作主语，指人，所以填who。

【4题详解】

考查时态语态。句子中缺少谓语动词，并且时态跟前后句保持一致，句意为全世界的人很快就听说了她和她的作品，所以用一般过去时的主动形式，所以填heard。

　　　Legos are popular with kids. But____5____(make) them can hurt the environment. Why? Legos are made of plastic. The plastic is made from oil. That is a nonrenewable resource. Recently, Lego___6___(introduce) earth-friendly pieces. They are made of plastic taken from sugarcane. That is a renewable material. The green pieces are part of a bigger plan for Lego. The company plans to use renewable materials in all its___7___(toy) by 2030. The actions the company takes today can have an influence on the planet of tomorrow.

【答案】5. making/to make

6. has introduced/introduced

7. toys

【解析】

这是一篇说明文。文章主要讲了乐高玩具公司引进了一种新的环保材料制作玩具。公司今天采取的行动会对星球的未来产生重大影响。

【5题详解】

考查非谓语动词。句子中已经有谓语动词can hurt，该空应用非谓语作主语，可以用动名词，也可以用不定式作主语，所以填making/to make。

【6题详解】

考查时态语态；根据前面的recently（最近），这里可以理解为：在刚刚过去的不久，所以可以用一般过去时introduced；也可理解为对现在的影响或者结果，所以也可以使用has introduced，所以填introduced/has introduced。

【7题详解】

考查名词。 根据前面的不定代词all，可知后面应该使用可数名词的复数形式，所以填toys。

Many organizations try to inspire people___8___(do) kind acts, wherever and whenever they can. The idea behind this is that it doesn't take any major plan to be kind, just a little bit of effort.