Where did humans come from? An Australian res...

Where did humans come from? An Australian researcher believes that she’s found the answer: river valley in the African country of Botswana (博瓦纳).

Professor Vanessa Hayes from the Garvan Institute of Medical Research in Sydney said she and her team have traced (追踪) modern humans back to small group of people who lived in this valley, according to the BBC.

“It’s an extremely large area, it would have been very lush (苍翠繁茂的), and it would have actually provided a suitable habitat for modern humans,” she said. She and her team studied mitochondrial (线粒体的) DNA (mtDNA) from people who live in south Africa, such as the Khoisan people. This type of DNA is only passed down from mother to child. This makes it easier to trace one’s ancestry (祖先), according to Business Insider. By tracing mtDNA back through different generations, the team concluded that every person alive today is related to a woman who lived in Botswana.

However, some experts doubt Hayes’ findings, saying that studies like hers are no longer important or necessary. “The idea that we’re looking for a single origin [of modern humans] is out of fashion,” said John Hawks, a researcher at the University of Wisconsin-Madison, US, in Popular Science.

There are many other locations around the world where humans could have gotten their start. It is likely that mankind appeared in many places at the same time. “I increasingly think that there probably wasn’t a single population in which modern humans evolved (进化). If that is the case, there is no ‘homeland’,” said Ryan Raaum, who researches African population genetics (遗传学) at Lehman College, US.

1.According to Hayes, where did humans come from?

A.Australia. B.Botswana. C.South Africa. D.Latin America.

2.Hayes and her team studied mtDNA because ________.

A.it is the most common type of DNA humans share B.there is a new technology to test mtDNA

C.it is only passed down from mother to child D.both women and men can take mtDNA tests

3.According to Hawks, Hayes’s study is ________.

A.important B.wrong C.fascinating D.unnecessary

4.What is the story mainly about?

A.New findings about the origin of humans. B.New findings about mtDNA.

C.The evolution of humans. D.The habitats of ancient humans..

八年级英语阅读单选困难题查看答案及解析

—What did Mike ask you just now?   —He asked me ________.

A．where you came from                    B．Where did you come from

C．where you come from                    D．where do you come from

八年级英语单项填空中等难度题查看答案及解析

— What did you say to Li Wei just now?　　 — I asked him _________.

A.where did he come from B.what he had done the day before

C.what was he doing D.when would he leave

八年级英语单选题中等难度题查看答案及解析

1.How was the weather last Sunday?

A. Sunny.　　 B. Rainy.　　 C. Windy.

2.Where did Kate come back from?

A. Tianjin.　　 B. Shanghai.　　 C. Beijing.

3.Were Maria and Kate at home?

A. Yes, they were.　　 B. No, they weren’t.　　 C. We don’t know.

4.Where did Kate visit?

A. The Palace Museum.　　 B. The Great Wall.　　 C. Both A and B.

5.What did Maria and Kate have for lunch?

A. Noodles.　　 B. Rice.　　 C. Bread.

八年级英语听短文回答问题中等难度题查看答案及解析

People use the V-sign, standing for “victory” around the world. Where did the i_______ come from? Well, it started during World WarⅡ.

On January 4, 1941, a Belgian whose first name was Victor made a radio broadcast to his countrymen. He found a new way of striking at the Nazi occupiers（占领）. That was the V-sign. The letter “V” stood not only for his first name, but also for w_______ “victory.” Certainly, the sign became p_______ quickly and was accepted by British Prime Minster, Winston Churchill. Every time he posed（摆姿势）for a c_______, he gave his famous “V” for “Victory.”

The V-sign can be made with the palm（手掌）of the hand facing in, or facing out. H_______, there is a great difference between the two gestures in the UK. With the palm facing out, the gesture means “victory,” with the palm facing in, the gesture is an insult（侮辱）. Sometimes this will c_______ some misunderstanding for a visitor to Britain. For example, in a pub, a Canadian has ordered two beers with his palm facing in, but half an hour later, the waiter still doesn’t come to serve him.

1.i________

2.w______

3.p_________

4.c___________

5.H_________

6.с_________

八年级英语单词填空简单题查看答案及解析

阅读下面短文,根据短文内容完成下列句子。

Where does Harry Potter come from? He's from the United Kingdom, an island country in Western Europe. It is an amazing country with a long history and rich culture.

Many people think of the Queen Elizabeth II when asked what they think about the UK. Though she is a queen, she doesn't actually run the country. The royal family has little real power.

People in the UK are proud of their literature(文学). There are many great British writers.

William Shakespeare is probably the most famous one. His writing is over 400 years old and is a bit difficult to read. But his plays teach important values(价值观念). That's why they are so popular.

British music, movies and TV shows are enjoyed by people all over the world. Bands like the Beatles, the Rolling Stones and Led Zeppelin have had a huge influence on modern-day musicians. The James Bond films, as well as TV shows like Sherlock and Downton Abbey, are beloved by many.

1.United Kingdom is an island country in Western __________.

2.Queen Elizabeth II is a queen and she doesn't actually __________the country.

3.People in the UK are proud of __________

4.__________is probably the UK's most famous writer. His plays teach important values.

5.British music, movies and __________are enjoyed by people all over the world.

八年级英语填空简单题查看答案及解析

书面表达

Winter holiday is coming. Some Australian students from your sister school will have a school trip in Nanjing for 10 days. To help these Australian friends enjoy themselves better in Nanjing, you are required to write an email to give them some advice.

Your email should include the following:

what to wear;

where to go;

what to do;

注意：词数80左右, 短文须包括所有内容要点, 适当发挥, 使短文连贯、通顺；开头己给, 不计入总词数。

Dear friend,

I am happy to know you will come to Nanjing. It's winter now.

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours sincerely,

Nanjing Friend

八年级英语书信作文中等难度题查看答案及解析

—Are you _______?　　 —No, I come from _______.

A. French; Australia　　 B. French; Australian　　 C. Frenchman; Australia

八年级英语单选题中等难度题查看答案及解析

The National Literacy Trust once did some researches(调查)on reading.About 32，000 children from different schools in the UK answered the questions from it.These children are aged from 8 to 18.

The research shows that children in the UK are reading less in their free time.Just over a quarter of the students said they read outside school.About the same number said their parents didn't feel that reading was important.Half of those students said they enjoyed reading “very much” or “quite a lot”．About two in five thought reading was “cool”，but about one in three said they only read when they had to.

Jonathan Douglas from the National Literacy Trust said，“Our research not only shows that children are reading less and having negative attitudes(消极的态度)to reading but also shows the relationship(关系)between this and their performance(表现)in reading tests.”

The research also finds that many children in the UK like to read e­books outside school.The percentage in 2014 was about 6% and it grew to 12% in 2015.

In today's world，there are so many activities for children to do.But if they sit down and do some reading，they will find reading is really interesting and useful.

1.How many students answered the questions from the National Literacy Trust?

A.About 32，000. B.About 3，200.

C.About 16. D.About 8.

2.What does the research show?

A.Children in the UK do well in their reading tests.

B.Parents in the UK think reading is unimportant.

C.Children in the UK are reading less in their free time.

D.Schools in the UK don't give their students much free time.

3.The underlined word “this” in Paragraph 3 refers to “________”．

A.the research

B.the National Literacy Trust

C.many children like to read e­books

D.children are reading less and having negative attitudes to reading

4.About ________ of the students in the UK liked to read e­books in 2014.

A.6% B.12% C.40% D.50%

5.The last paragraph tells us that children ________.

A.should do more reading B.should sit down when they read

C.need to do all kinds of activities D.like interesting and useful things

八年级英语阅读单选中等难度题查看答案及解析

The National Literacy Trust once did some research (调查) on reading. About　 32,000 children from different schools in the UK answered the questions from it. These children are aged from 8 to 18.

The research shows that children in the UK are reading less in their free time. Just over a quarter of the students said they read outside school. About the same number said their parents didn't feel that reading was important. Half of those students said they enjoyed reading "very much" or "quite a lot". About two in five thought reading was "cool", but about one in three said they only read when they had to.

Jonathan Douglas from the National Literacy Trust said, "Our research not only shows that children are reading less and having negative attitudes(消极的态度) to reading but also shows the relationship (关系) between this and their performance(表现) in reading tests.”

The research also finds that many children in the UK like to read e-books outside school. The percentage in 2014 was about 6% and it grew to 12% in 2015

In today's world, there are so many activities for children to do. But if they sit down and do some reading, they will find reading is really interesting and useful.

1.How many students answered the questions from the National Literacy

A. About 32, 000　　 B. About 3, 200　　 C. About 16　　 D. About 8.

2.What does the research show?

A. Children in the UK do well in their reading tests

B. Parents in the UK think reading is unimportant.

C. Children in the UK are reading less in their free time.

D. Schools in the UK don't give their students much free time

3.The underlined word "this" in Paragraph 3 refers to “__________”

A. the research

B. the National Literacy Trust 2.ebmon

C. many children like to read e-books

D. children are reading less and having negative attitudes to reading

4.About_______ of the students in the UK liked to read e-books in 2014

A. 6%　　 B. 12%　　 C. 40%　　 D. 50%

5.The last paragraph tells us that children

A. should do more reading

B. should sit down when they read

C. need to do all kinds of activities

D. like interesting and useful things

八年级英语阅读单选困难题查看答案及解析