[题目]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. H 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】

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. He looked at mountains on both continents. They would match if the continents were pushed together. 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, 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 rises to 3, 700C at the bottom of the mantle. The heat causes 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, they also float or move.

Today, scientists know the continents are still moving. Alfred Wegener's theory was proved correct.

【1】What does a theory in the first paragraph mean in this article?

A.An idea based on studies.B.An opinion based on a feeling.

C.A correct answer to a question.D.A wrong answer to a question.

【2】What was the name of Alfred Wegener's theory?

A.Pangaea.B.Continental drift.C.Tectonic plates.D.Continental plates.

【3】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.

【4】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 praise for it.

【5】Why do scientists think continents can move?

A.The heat of the tectonic plates causes continents to move.

B.The movement of ocean water causes 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.

【答案】

【1】A

【2】B

【3】D

【4】B

【5】D

【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。

【1】

推理判断题。根据He had a strange theory. His theory is that 250 million years ago there was one giant continent“他有一个奇怪的理论。他的理论是2.5亿年前，有一个巨大的陆地”及Wegener made many studies“魏格纳做了许多研究”，由此可知，他的这个理论是基于研究提出来的想法。故选A。

【2】

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。

【3】

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。

【4】

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。

【5】

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。

练习册系列答案

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注意：1.短文必须包括卡片所给的信息，适当发挥，并谈谈自己的想法；

2.文中不得出现与你身份相关的信息；

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【题目】

Everyone loves holidays and festivals. But do you know a holiday that is celebrated every month? Yes, it's the only holiday that takes place twelve times a year—Bonza Bottler Day.

Bonza Bottler Day is celebrated once a month when the number of the month is the same as the number of the day (Jun. 1, Feb. 2, March. 3). When the number of the year also matches the number of the day and month (August 8, 2008), there is reason to have a bigger celebration.

Elaine Fermont from America came up with the idea for Bonza Bottler Day on August, 1985. She created it when she realized that there were no special chances to celebrate one month. She decide to give herself a reason to have a party and some fun with this special day every month.

Mrs. Fremont held a competition to give the day a special name, which a student from Australia won. When Australians like something, they might shout,” Bonza!”. The word means super, great or fantastic. And “Bottler"is slang(俚语)for something excellent. So the holiday is known as Bonza Bottler Day.

Bonza Bottler Day has no tradition. You are free to do whatever you want. People in offices and hospitals bring food to share. Bonza Bottler Day is a favorite with many schools because it gives a break to students. The holiday can be Candy Day, Ice Cream Day, Be Kind to Classmates Day, No Homework Day, Picnic Day, and the list goes on.

Why not celebrate Bonza Bottler Day in your own ways and have fun?

【1】Which of the following dates is NOT a Bonza Bottler Day?

A.June 6, 2020B.July 6, 2020.

C.June 6, 2019.D.July 7, 2020.

【2】According to the article, who named Bonze Bottler Duy?

A.Elaine Fermont.B.The writer.

C.An Australian student.D.Not mentioned in the article.

【3】Which of the following statements(陈述) about Bonzu Bottler Day is TRUE?

A.It is celebrated when the numbers of the year, the month and the day are the same.

B.Mrs. Fermont created it because she wanted to give herself a reason to organize a competition.

C.The name of the festival had nothing to do with Australian culture.

D.People can do all the things that they like to celebrate it.

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A. We’d better not. B. No, thank you.

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Haroshi is in his late 30s. He's a skateboarder but he also makes things from wood. He began skateboarding when he was 15 years old and he loved it. He used to skate every day. Now, if you know anything about skateboarding, you'll know that skateboards don't last forever because they break. Haroshi didn't throw his out but he collected them. Over time he built up a big collection and at the same time he learnt about all the different types of skateboards. Surprisingly, not all skateboards are of the same shape and actually they are often built in different ways. By the time he was 25, he had a lot of collections of old skateboards.

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【1】When did Haroshi begin skateboarding?

【2】What was the rst thing Haroshi created from the wood?

【3】How many pieces of sculptures has Haroshi made?

【4】What kind of person is Haroshi according to the passage?

【5】What is the last paragraph mainly about?

【题目】The teacher speaks loudly so that(以便) the students can hear her ____.

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