1 Complete each sentence with the proper form of the word in the box. 用方框中单词的适当形式补全句子。
ancient tourism discovery material ill excite exploration
(1) The ship used to play a significant part in world .
(2) Chinese people came up with many great inventions in times.
(3) Did Benjamin Franklin's experiment lead to the of electricity?
(4) Fishnets and plants were important for making paper.
(5) The invention of the steam train helped grow among ordinary people.
(6) The invention of the telephone brought huge to the world.
(7) X - ray machines provide doctors with a powerful tool to look inside the body and treat .

(1) exploration (2) ancient (3) discovery (4) materials (5) tourism (6) excitement (7) illnesses

(1) "world"后需名词，"exploration"（探索）符合句意，指船在世界探索中起重要作用。
(2) "times"前需形容词，"ancient"（古代的）修饰"times"，表示古代。
(3) "the"后需名词，"discovery"（发现）符合，指富兰克林的实验是否导致电的发现。
(4) "important"后需名词，"material"（材料）用复数"materials"，指渔网和植物是造纸的重要材料。
(5) "helped"后接动词原形，"tourism"（旅游业）是名词，"help tourism grow"指帮助旅游业发展。
(6) "huge"后需名词，"excitement"（兴奋）是不可数名词，指电话的发明带来巨大兴奋。
(7) "treat"后需名词，"ill"的名词形式是"illness"，常用复数"illnesses"，指治疗疾病。

2 Listen to the sentences and choose the right picture. 根据听到的句子选出相应的图片。

(1) (2) (3) (4)

由于缺少听力内容，无法根据听到的句子选择相应图片。请提供听力材料以便解答。