登录
二、语法填空
阅读下面的短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式。
There are about 7 billion people on earth today and we use a lot of energy. Most people use natural gas or oil, and some have already started to use energy that comes 16
The first energy source was 17
One of the world's 20
Water is another old source of energy. Research shows the ancient Greeks were using water over 2,000 years ago. How? They 24
阅读下面的短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式。
There are about 7 billion people on earth today and we use a lot of energy. Most people use natural gas or oil, and some have already started to use energy that comes 16
from
wind and the sun. What energy did people use in the past?The first energy source was 17
probably
(probable) wood. Wood was easy to find and use. Early humans used wood 18to keep
(keep) warm and cook food. We don't know when early humans learnt 19their
(they) ways of making fire. Maybe it was at least 1 million years ago. Even today, wood is still a common and convenient energy source.One of the world's 20
oldest
(old) energy sources is coal. Coal looks like 21a
black rock, but it is made of ancient plants. During the 1800s, coal became important for social development. At that time, it 22was used
(use) by people around the world to power ships, trains and factories. 23Although/Though
burning coal causes serious air pollution, people still use it today.Water is another old source of energy. Research shows the ancient Greeks were using water over 2,000 years ago. How? They 24
built
(build) big wheels out of wood, and then they put part of the wheel underwater. The moving water caused the wheel to turn and make energy. Today in many 25countries
(country), people still use water for energy and the wheels are much larger.答案
16. from 17. probably 18. to keep 19. their 20. oldest 21. a 22. was used 23. Although/Though 24. built 25. countries
解析
【分析】
先通读短文理解主旨，再逐个分析每个空白处的语法规则、固定搭配或词形变化：16题考查固定短语；17题需用副词修饰be动词；18题考查不定式作目的状语；19题用形容词性物主代词修饰名词；20题涉及形容词最高级结构；21题考查不定冠词泛指；22题需用一般过去时的被动语态；23题是让步状语从句的连词；24题用动词过去式；25题是名词复数形式。
【解析】
16. 固定搭配come from表示“来自”，故填from；
17. 此处修饰be动词was，需用probable的副词形式probably，故填probably；
18. 固定用法use sth to do sth表示“用某物做某事”，表目的，故填to keep；
19. 修饰名词ways需用形容词性物主代词，they的形容词性物主代词是their，故填their；
20. “one of + the + 形容词最高级 + 名词复数”是固定结构，old的最高级是oldest，故填oldest；
21. 此处泛指“一块黑色岩石”，rock是可数名词单数，black以辅音音素开头，用不定冠词a，故填a；
22. 主语it指代coal，与动词use是被动关系，时间为过去，故用一般过去时的被动语态was used，故填was used；
23. 前后句是让步关系，意为“尽管烧煤造成严重空气污染，但人们至今仍使用它”，故填Although/Though；
24. 描述古代的动作，用build的过去式built，故填built；
25. many后接可数名词复数，country的复数是countries，故填countries。
【答案】
16. from 17. probably 18. to keep 19. their 20. oldest 21. a 22. was used 23. Although/Though 24. built 25. countries
【知识点】
固定搭配、副词用法、非谓语动词、物主代词、形容词最高级、冠词、被动语态、连词、动词时态、名词复数
【点评】
本题为语法填空题，考查基础语法知识，涵盖常见的固定搭配、词形变化、时态语态等考点，难度适中，需要学生掌握基础语法规则和词汇的灵活运用。
【难度系数】
0.6
先通读短文理解主旨，再逐个分析每个空白处的语法规则、固定搭配或词形变化：16题考查固定短语；17题需用副词修饰be动词；18题考查不定式作目的状语；19题用形容词性物主代词修饰名词；20题涉及形容词最高级结构；21题考查不定冠词泛指；22题需用一般过去时的被动语态；23题是让步状语从句的连词；24题用动词过去式；25题是名词复数形式。
【解析】
16. 固定搭配come from表示“来自”，故填from；
17. 此处修饰be动词was，需用probable的副词形式probably，故填probably；
18. 固定用法use sth to do sth表示“用某物做某事”，表目的，故填to keep；
19. 修饰名词ways需用形容词性物主代词，they的形容词性物主代词是their，故填their；
20. “one of + the + 形容词最高级 + 名词复数”是固定结构，old的最高级是oldest，故填oldest；
21. 此处泛指“一块黑色岩石”，rock是可数名词单数，black以辅音音素开头，用不定冠词a，故填a；
22. 主语it指代coal，与动词use是被动关系，时间为过去，故用一般过去时的被动语态was used，故填was used；
23. 前后句是让步关系，意为“尽管烧煤造成严重空气污染，但人们至今仍使用它”，故填Although/Though；
24. 描述古代的动作，用build的过去式built，故填built；
25. many后接可数名词复数，country的复数是countries，故填countries。
【答案】
16. from 17. probably 18. to keep 19. their 20. oldest 21. a 22. was used 23. Although/Though 24. built 25. countries
【知识点】
固定搭配、副词用法、非谓语动词、物主代词、形容词最高级、冠词、被动语态、连词、动词时态、名词复数
【点评】
本题为语法填空题，考查基础语法知识，涵盖常见的固定搭配、词形变化、时态语态等考点，难度适中，需要学生掌握基础语法规则和词汇的灵活运用。
【难度系数】
0.6
