Passage Two
Did you know that there's a kind of bird that can sew? This bird, called the "Tailor Bird", uses its mouth as a needle. [29]It sews leaves together in the shape of a cup. Then it adds a layer of straw to the inside of the cup and lays its eggs there. Each bird species builds its own special kind of nest. The most common materials used for nests are grasses, branches, and feathers. A bird must weave these materials into a nest. Just imagine building a house without cement or nails to hold it together! Another bird is called the "Weaver Bird". The "Weaver Bird" builds a nest that looks like a basket. The nest does shape like a pear with a hole in the middle. [30]The hole is the door of the nest. A third bird is called the "Oven Bird". The "Oven Bird" makes a nest that is very solid. [31]The nest is made of mud. The "Oven Bird" forms the mud into the shape of an oven, and then lets it dry in the sun. The sun bakes the mud, making it very hard. Not all birds make their homes in branches. [32]Some birds build their nests on the ground while others bury their eggs under the ground, and some birds do not build nests at all. So when you look for nests and eggs in the branches of trees and bushes, [32]remember that some nests may be right under your feet.

Questions 29 to 32 are based on the passage you have just heard.
29. What does the nest built by a Tailor Bird look like?
正确答案：B
解析：文章主要提到3种鸟，需要一一记录相关信息，题目顺序一般与信息出现的顺序一致。最先听到的是tailor bird，而题目询问缝叶莺的巢看上去是什么样子。关键是要听到“它（缝叶莺）把树叶缝在一起，呈杯状。”故选B。A是织巢鸟的窝的样子，C是无关选项，D是灶巢鸟的窝的样子。
30. Why is there a hole in the Weaver Bird's nest?
正确答案：B
解析：听到的第2种鸟是weaver bird，而题目询问织巢鸟的窝上为什么有一个洞。关键是要听到“这个洞是鸟巢的门。”因此答案为B。
31. What is the Oven Bird's nest made of?
正确答案：C
解析：第3种鸟是oven bird，而题目询问灶巢鸟的窝是用什么做的。关键是要听到“这个窝是用泥巴做的。”故C正确。此外，原文提到Oven Bird时，三次提及了mud这个单词，应该不难得出答案C。符合短文听力“听到什么选什么”的解题原则。
32. What might surprise us about birds' nests according to the speaker?
正确答案：A
解析：题目询问根据作者所说，鸟巢可能让我们感到惊讶的是什么。关键是要听到最后一句“……记住，有些鸟巢也许就在你的脚下”。故选A。符合“同义替换”的原则。短文结尾处常设考点。