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四、语法填空。
Have you ever seen thousands of turtles in one place? In South America, scientists have found the world's 19.
These turtles are now in danger 20.
Scientists found 22.
It is very important to count turtles 27.
Have you ever seen thousands of turtles in one place? In South America, scientists have found the world's 19.
largest
(large) turtle nesting site. Every summer, female Giant South American River Turtles go there to lay eggs. Each turtle is very big. An adult can weigh more than 61 kilograms.These turtles are now in danger 20.
because
people hurt them for their meat and eggs. To save them, scientists must know how many of them are left. But counting so many turtles is not easy. Also, walking on the sand may scare 21. them
(they).Scientists found 22.
a
clever way. They used drones — small flying machines with cameras. Many photos from the sky 23. were taken
(take) by the drones. These photos were put together into one big picture 24. which/that
is called an “orthomosaic（正射影像）”. Still, there was a problem. Some turtles moved and appeared more than once in the photos. 25. To solve
(solve) this problem, the scientists painted marks on over 1,000 turtle shells. Then they flew the drones again. They also used a maths model to count 26. more carefully
(careful) than last time. The results were clear. There were about 41,000 turtles.It is very important to count turtles 27.
in
the right way. If we don't have the right number, we cannot know if the turtles are disappearing. The scientists 28. will keep
(keep) working to make the method better in the future. They also think it can help count other animals.答案
19.largest 20.because 21.them 22.a 23.were taken 24.which/that 25.To solve 26.more carefully 27.in 28.will keep
解析
【分析】
本题为语法填空，需结合语境、词性、时态、语态、固定搭配及从句知识逐一分析：1.19空由the world's提示，需用形容词最高级表“最大的”；2.20空前后为因果关系，需填表原因的连词；3.21空动词scare后接人称代词宾格；4.22空way为可数名词单数，表泛指“一个”，需用不定冠词；5.23空主语photos与take是被动关系，且描述过去动作，需用一般过去时被动语态；6.24空为定语从句，先行词指物且在从句中作主语，需用关系代词；7.25空表目的，需用不定式作目的状语；8.26空由than提示，需用副词比较级修饰动词count；9.27空为固定介词搭配；10.28空由in the future提示，需用一般将来时。
【解析】
19. 形容词最高级：the world's后接形容词最高级，large的最高级为largest；
20. 连词：前后句为前果后因的因果关系，用连词because；
21. 人称代词宾格：动词scare后需接宾格，they的宾格为them；
22. 不定冠词：way是可数名词单数，表泛指“一个”，且clever以辅音音素开头，用a；
23. 一般过去时被动语态：主语Many photos与take是被动关系，动作发生在过去，故用were taken；
24. 定语从句关系代词：先行词one big picture指物，在从句中作主语，用which/that；
25. 不定式作目的状语：表“为了解决这个问题”，用To solve；
26. 副词比较级：由than可知，需用carefully的比较级more carefully修饰动词count；
27. 介词搭配：固定搭配in the right way，意为“用正确的方法”；
28. 一般将来时：由in the future可知，用will keep。
【答案】
19.largest 20.because 21.them 22.a 23.were taken 24.which/that 25.To solve 26.more carefully 27.in 28.will keep
【知识点】
形容词最高级、连词、人称代词宾格、不定冠词、被动语态、定语从句、不定式作目的状语、副词比较级、介词搭配、一般将来时
【点评】
本题考查初中英语核心词法与句法知识点，需结合语境分析语法规则，整体难度适中，适合多数学生作答。
【难度系数】
0.6
本题为语法填空，需结合语境、词性、时态、语态、固定搭配及从句知识逐一分析：1.19空由the world's提示，需用形容词最高级表“最大的”；2.20空前后为因果关系，需填表原因的连词；3.21空动词scare后接人称代词宾格；4.22空way为可数名词单数，表泛指“一个”，需用不定冠词；5.23空主语photos与take是被动关系，且描述过去动作，需用一般过去时被动语态；6.24空为定语从句，先行词指物且在从句中作主语，需用关系代词；7.25空表目的，需用不定式作目的状语；8.26空由than提示，需用副词比较级修饰动词count；9.27空为固定介词搭配；10.28空由in the future提示，需用一般将来时。
【解析】
19. 形容词最高级：the world's后接形容词最高级，large的最高级为largest；
20. 连词：前后句为前果后因的因果关系，用连词because；
21. 人称代词宾格：动词scare后需接宾格，they的宾格为them；
22. 不定冠词：way是可数名词单数，表泛指“一个”，且clever以辅音音素开头，用a；
23. 一般过去时被动语态：主语Many photos与take是被动关系，动作发生在过去，故用were taken；
24. 定语从句关系代词：先行词one big picture指物，在从句中作主语，用which/that；
25. 不定式作目的状语：表“为了解决这个问题”，用To solve；
26. 副词比较级：由than可知，需用carefully的比较级more carefully修饰动词count；
27. 介词搭配：固定搭配in the right way，意为“用正确的方法”；
28. 一般将来时：由in the future可知，用will keep。
【答案】
19.largest 20.because 21.them 22.a 23.were taken 24.which/that 25.To solve 26.more carefully 27.in 28.will keep
【知识点】
形容词最高级、连词、人称代词宾格、不定冠词、被动语态、定语从句、不定式作目的状语、副词比较级、介词搭配、一般将来时
【点评】
本题考查初中英语核心词法与句法知识点，需结合语境分析语法规则，整体难度适中，适合多数学生作答。
【难度系数】
0.6
