江苏省南通市
2020-2021学年九年级英语上学期第二次月考试卷分类汇编
阅读理解
2020-2021学年江苏省南通市崇川区第一初级中学九年级上学第二次月考英语试卷
四、阅读理解（共20题，每题2分，共40分）
A.
Alfred Wegener was a scientist in the early 1900s. He had a strange theory. His theory is that 250 million years ago there was one giant continent (洲). He called the giant continents as Pangaea. He thought Pangaea changed millions of years later. It started breaking up. The continent slowly drifted apart. They became continents we know today.
Wegener made many studies. He looked at world maps and thought that some continents were like puzzle pieces. They could fit together. He went to South America as well as Africa北斗七星名字.
He looked at mountains on both continents. They would match if the continents were pushed together. 余角和补角Wegener found similar fossils (化石), plants and animals on both continents.
Alfred Wegener called his theory “continental drift”. In 1912, he told other scientists about his theory. Most thought Wegener was crazy. They didn't believe huge pieces of land could move.
Later卖字画, other scientists did more studies. They discovered that continents are actually moving all the time. Scientists know that the surface of Earth is not one piece. They think it's broken into large pieces of hard rock called tectonic plates (地壳板块). Scientists believe there are 30 tectonic plates on Earth and the continents lie on top of them.
Under Earth's surface is the mantle ( 地幔). The mantle is a layer ( 层) of rock about 2, 900 km thick. The temperature ris to 3, 700C at the bottom of the mantle. The heat caus the mantle to become hot, molten (熔化的) rock which flows around.
The tectonic plates float like rafts on top of the hot, molten rock but they move very slowly-only about 4 inches (10 cm) each year. Since continents lie on top of the tectonic plates, 巴卫壁纸 they also float or move.
Today, scientists know the continents are still moving. Alfred Wegener's theory was proved correct.
51. 磁铁为什么有磁力What was the name of Alfred Wegener's theory?
A．Pangaea. B．Continental drift.
C．Tectonic plates. D．Continental plates.
52. Where did Alfred Wegener find clues to prove his theory?
A．Only in Africa. B．All over the world.
C．Only in South America. D．In both Africa and South America.
53. What did scientists in the early 1900s think about Wegener's theory?
A．They agreed with him. B．They thought it was crazy.
C．They copied his idea right away. D．They gave him prai for it.
54. Why do scientists think continents can move?
A．The heat of the tectonic plates caus continents to move.
B．The movement of ocean water caus the continents to move.
C．Continents are huge pieces of land that can be pushed together.
D．Continents lie on top of tectonic plates that float on hot, molten rock.
【参考答案】BDBD
【思路解析】本文讲述了阿尔弗雷德·魏格纳通过各种研究来证明他“大陆漂移说”的理论，其他的科学家经过多次的研究也证实了他的理论是正确的。
51. 细节理解题。根据Alfred Wegener called his theory “continental drift”，可知，这个理
论的名字是“大陆漂移说”。故选B。
52. 细节理解题。根据He went to South America as well as Africa. He looked at mountains on both continents. They would match if the continents were pushed together“他去了南美洲和南非。他看着这两个大陆上的山脉。如果大陆被挤在一起，他们就会匹配”，可知，他去了南美洲和南非寻找线索来证明他的理论。故选D。
53. 细节理解题。根据In 1912, he told other scientists about his theory. Most thought Wegener was crazy，可知，在1912年，他把这个理论告诉其他科学家，大部分人认为他疯了。故选B。
54. 细节理解题。根据The tectonic plates float like rafts on top of the hot…Since continents lie on top of the tectonic plates, they also float or move，可知，地壳板块像木筏一样漂浮在炙热的岩石上，科学家认为大陆依赖于地壳板块，所以大陆也浮动或移动。故选D。
B
I think there are veral reasons that suggest developing robots is a waste of money.
In San Diego recently $325, 000 was spent on inventing a robotic squirrel to do some scientific experiments. The rearch proved that squirrels are able to scare away snakes by wagging (摇动) their tails. Do you need a robotic squirrel to work this out?
What about AIBO, a robotic pet, developed in Japan? In Japane aibou means "buddy"崔可夫. The pets have been developed at huge cost mainly to provide entertainment. They've been ud in movies and music videos. Universities have ud them for educational purpos. However, in 2006 the company stopped producing the robotic pets in order to save money. Was it worth a lot of money?
Then there's NAO, a robot which has been developed by a French company. 格列佛游记的作者Its main purpo is to make life easier for humans. 虾仁玉米的做法It speaks 19 languages and has its own personality. It can tell children a story, help in the classroom or the home, or act as a companion to tho people who need someone to be with. A fully developed one costs $16, 000. Is that value for money? Who can afford it anyway?
