五 语法填空
Trees are everywhere around us.
27. we often don't care about them. These 28. (silence) friends are very important for all the living things on earth. Forests are full of different animals, insects and plants. They are like homes for them.
Trees are like air cleaners in nature. They take 29. greenhouse gases, like carbon dioxide(二氧化碳), and give out oxygen(氧气). So they help make the air clean for everyone on earth.
Trees are important for nature, and they also make our daily life 30. (good) and more convenient. Many things we use every day, like paper and pencils, and most of 31. furniture in our homes, come from trees. Also, trees give us lots of yummy fruits and nice drinks. For example, we can make tea with the 32. (leaf) of tea trees.
Sadly, people 33. (hurt) trees and cutting down many trees around the world. Besides, air and water 34. (pollute) is making things worse for trees. These problems are really bad for 35. (we) environment.
It's time for us to do something. We must work harder 36. (protect) trees. Trees are important for our lives now and the future of our planet.

27. But
28. silent
29. in
30. better
31. the
32. leaves
33. are hurting
34. pollution
35. our
36. to protect

【分析】
本题为英语语法填空题，需结合语境逻辑、词性要求、固定搭配、时态语态、冠词代词等语法知识解题。解题思路：先通读全文理解主旨，再逐空分析：根据前后句逻辑判断连词；根据修饰名词的要求转换词性；根据固定搭配确定介词；根据并列结构的比较级要求变形；根据特指用定冠词；根据名词复数规则变形；根据并列的现在分词判断时态；根据句子成分确定词性；根据修饰名词用物主代词；根据表目的用不定式。
【解析】
27. 前后句“树无处不在”和“我们常不关心它们”为转折关系，需用转折连词But；
28. 修饰名词friends需用形容词，silence的形容词形式为silent；
29. 固定搭配take in表示“吸收”，符合“吸收温室气体”的句意，故填in；
30. and连接并列成分，后面为比较级more convenient，故good用比较级better；
31. 特指“我们家里的家具”，需用定冠词the；
32. 茶树的叶子不止一片，leaf的复数形式为leaves；
33. 与后面的cutting（现在分词）并列，需用现在进行时，主语people为复数，故填are hurting；
34. 此处作主语，需用名词，pollute的名词形式为pollution；
35. 修饰名词environment，需用形容词性物主代词our；
36. 此处表目的“为了保护树”，用不定式to protect；
【答案】
27. But
28. silent
29. in
30. better
31. the
32. leaves
33. are hurting
34. pollution
35. our
36. to protect
【知识点】
连词用法；词性转换；固定搭配
【点评】
本题为初中英语基础语法填空题，考查核心语法考点，难度适中，适合巩固基础语法知识。
【难度系数】
0.7

词汇拓展
Can you guess the part of speech and meaning of the underlined words in the passage(s) above?
37. cancer:
38. disappear:
39. ensure:
40. furniture:

37. n. 癌症
38. v. 消失；不见
39. v. 确保
40. n. 家具

【分析】本题考查常见英语单词的词性与词义，需结合日常积累的基础词汇知识，回忆每个单词的词性及对应的中文含义，完成对应填空。
【解析】37. cancer为名词，意思是“癌症”；38. disappear为动词，意思是“消失；不见”；39. ensure为动词，意思是“确保”；40. furniture为名词，意思是“家具”。
【答案】37. n. 癌症
38. v. 消失；不见
39. v. 确保
40. n. 家具
【知识点】英语单词词性、词义
【点评】本题为基础词汇考查题，侧重学生对核心常用单词的掌握，是英语学习的基础内容，难度较低。
【难度系数】0.8