二、语篇填空。
第一节
阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。
be, it, and, live, when, year,
young, survive, heat, from
The sun is important to the earth. It gives the earth 21. and light. So humans and other 22. things can live on the earth. But there 23. one big problem that humans have to think about: Will the sun disappear one day?
24. will the sun die? It won't be any time soon. It will be in 5 billion 25. .
The scientists from the University of Manchester in the UK predict(预测) that in about 5 billion years 26. now, the sun will turn into a "Red Giant(巨星)". This is the name that scientists give to a star at the end of 27. life.
When our sun becomes a red giant, the center of it will shrink (萎缩). 28. the outer layer(外层) will spread as far as Mars. Scientists say no humans will 29. on the earth when the sun dies out.
The sun is still 30. now. It is only 4.6 billion years old. This means it is just about one half of its lifetime.

21. heat 22. living 23. is 24. When 25. years
26. from 27. its 28. And 29. survive 30. young

【分析】首先通读短文，明确主题是关于太阳对地球的重要性及太阳未来的变化。解题时，需结合每个空格的词性需求、上下文语境、固定搭配，从方框给出的词汇中选择并调整形式（如名词复数、形容词、代词、动词原形等），逐步确定每个空的答案。
【解析】21. 空格与light并列作give的宾语，需名词，方框中heat符合，故填heat；22. 修饰名词things需形容词，living things（生物）为固定表达，故填living；23. there be句型主语为单数problem，时态为一般现在时，be动词用is，故填is；24. 此处提问太阳死亡的时间，用疑问词When，句首大写，故填When；25. 数词5 billion后接可数名词复数，year变复数years，故填years；26. from now是固定搭配，意为“从现在起”，符合语境，故填from；27. 修饰名词life需形容词性物主代词，it变its，故填its；28. 前后句为并列顺承关系，用连词And，句首大写，故填And；29. 情态动词will后接动词原形，结合语境选survive，故填survive；30. 作表语，结合后文“仅46亿年，为寿命一半”，可知太阳现在年轻，选young，故填young。
【答案】21. heat 22. living 23. is 24. When 25. years 26. from 27. its 28. And 29. survive 30. young
【知识点】语篇填空、词汇运用、词性转换
【点评】本题考查学生在语境中运用词汇的能力，需结合词性、逻辑及固定搭配解题，是初中英语基础题型，难度适中。
【难度系数】0.6

阅读短文，根据语篇要求填空，使短文通顺、意思完整。每空限填一词。
In the day, we see the sun shining in the sky. It gives us light and warmth. We use the light and warmth 31. live and work. At night, we see the moon and stars. The moon looks bright and the stars twinkle(闪烁) in the sky. The light on the moon and stars comes 32. the sun. They have no light of their own.
The sun is a ball. It's much bigger than the moon. The sun has a family. It's 33. biggest member of the family. The moon is a ball, too, like the sun and the earth. But it's much smaller than the sun and the earth.
The stars look smaller than the sun. They look small 34. they are very far from us. All day the stars are in the sky. But the light from the sun 35. too bright. We can't see the stars in the day.

31. to 32. from 33. the 34. because 35. is

【分析】
本题为英语语篇填空题，需结合固定搭配、语法规则及上下文逻辑解题：31空考查固定搭配，32空考查固定短语，33空考查形容词最高级的用法，34空考查连词的逻辑关系，35空考查be动词的用法。
【解析】
31. 固定搭配“use sth to do sth”表示“用某物做某事”，此处需用不定式符号to，故填to；
32. 固定短语“come from”表示“来自”，符合句意“月亮和星星的光来自太阳”，故填from；
33. 形容词最高级前必须加定冠词the，biggest是big的最高级形式，故填the；
34. 前后句为因果关系，前果后因，需用连词because连接，故填because；
35. 主语the light是不可数名词，一般现在时中be动词用is，构成主系表结构，故填is。
【答案】
31. to 32. from 33. the 34. because 35. is
【知识点】
固定搭配、介词用法、形容词最高级、连词用法
【点评】
本题侧重考查英语基础语法和常用固定搭配，结合上下文逻辑即可完成填空，属于基础题型。
【难度系数】
0.8