The ________ of antibiotics (抗生素) in the 20 c...

The ____of antibiotics(抗生素) in the 20th century has made a great difference to us.

A.invention B.instruction C.method D.discovery

九年级英语单选题简单题查看答案及解析

The ________ of antibiotics (抗生素) in the 20 century has made a great difference to human beings.

A.trust B.instruction C.method D.discovery

九年级英语单选题中等难度题查看答案及解析

TV was one of the greatest inventions in the 20th century.　 Nowadays，nearly every household has at least one TV set.

Television came into being based on the inventions and discoveries of many scientists. On April 7，1927，the first public television programme was broadcast in the USA. The signals were received on a very small screen. It was only about the size of a business card. The pictures were reddish and not clear.

In the 1930s, bigger screens appeared with black-and-white pictures. However，a snowy picture was the best many TV viewers could hope for. Often,　 they could only get one station，and only when the weather conditions were good.

When World War Ⅱ(1939-1945)began，the development of TV stopped.　 There were a very small number of TV sets in the hands of the public. By 1945，there were fewer than 7,000 working TV sets in the USA. A TV set cost about half the price of a car at that time.

The period after World War Ⅱ is considered the final birth of television.　 Families saved money during the war years，and wanted to buy a lot of things after the war.　 TV sets were soon put onto the "must have" list. 1950-1959 was an exciting period for television. Colour televisions and remote controls came out during this time. By 1955，the cost of TV sets came down a lot. Instead of being equal to half the price of a car, they were now just equal to the cost of a new set of tires. That marks the beginning of the booming age of TV.

1.Which is NOT true about the first public television programme?

A. It was broadcast in the UK.

B. It was broadcast in 1927.

C. The pictures were not clear.

D. It was shown on a small screen.

2.The underlined sentence in the last paragraph means 　　　　　 .

A. people liked TVs less than before

B. nobody wanted a TV in their home

C. every family wanted to buy a TV

D. people didn't know how to use a TV

3.Which of the following is TRUE about the early development of TV?

A. In the 1930s，TV signals became very easy to receive.

B. During World War，TV sets went into lots of families.

C. After World War II，TV was invented.

D. TV developed fast in the 1950s.

4.What's the main idea of the passage?

A. The birth of television.

B. The development of television.

C. How to invent television.

D. The price of television.

5.What does the word "booming" mean?

A. Soon.　　 B. Slow.　　 C. Busy.　　 D. Fast.

九年级英语阅读单选困难题查看答案及解析

阅读短文，完成下面句子，每空一词。

In the 21st century classroom, modern technology has made our learning experience more interesting. Also, it’s more interactive(互动的).

Now three kinds of tools in the 21st century classroom---a whiteboard, a computer screen and some audio tools(音频工具) are available. They have made a big difference in how students learn. An interactive whiteboard allows the teacher to show pictures and provide sound as well. A large computer screen has colorful pictures and sound in it. So lots of students’ attention is attracted by what they see and hear. Different kinds of audio tools, such as earphones and microphone, also help to make sure that everyone can hear the teacher. In the past, if a child missed some of what the teacher said, the child may have been too nervous to ask the teacher to repeat it. Now the students are not likely to miss what the teacher says with these audio tools.

The 21st century classroom is able to teach students more than one thing. Just imagine an English lesson is given in a modern classroom like this. How would it be different from a classroom in the past? The answer is simple. The students would learn about not only the subject itself but also how to use the modern machines.

The 21st century classroom can make teaching and learning easier. Now everyone is able to express their opinions or answer questions without having to speak loud. Since everyone can do it, the teacher can easily see who needs more help in other ways.

It’s clear that the 21st century classroom is really making a great difference.

1.Modern technology has made our learning experience more _________ and the technology is also more __________.

2.An interactive whiteboard can provide not only __________but also_________.

3.A computer screen with pictures and sound in it can attract students’_________, and there is less chance of ________ what the teacher says.

4.In a modern classroom, students can learn about both the _________itself and the use of _____________.

5.This passage mainly talks about audio tools like _________ and _________.

九年级英语阅读理解困难题查看答案及解析

In the 20th century, advertising has become very popular. Why is it so popular? Because it has been proved that repeated advertising can increase product sales and make the price of products lower.

Advertisements can be made in many ways. People in the U.S.A. and Europe use them to advertise all kinds of products, services and other things as well. People use large boards, signs inside or outside shops and cinemas, printed mails or gifts to make advertisements. Besides, balloons and aeroplanes are also used.

An advertisement, however, should be properly designed to avoid waste. How is an advertisement made? An advertising firm (公司) selected a company designs and makes the advertisement by studying the information about customers and products. The designers put forward their different plans with pictures or photos. When the advertisement is ready, it is tested in a place to see whether it can make the product popular with customers or not. If it does, it will be used all over the country. Otherwise it should be designed until it is accepted by customers and market by finding out the reason for the failure.

1.The reason for which advertising is popular is that _________.

A. it can make the price of products higher

B. it can increase products sales

C. it can make the products have better quality.

D. it can lower the cost of products

2.How many ways of advertising are mentioned(提到) in the second paragraph?

A. Six　　 B. Eight　　 C. Two　　 D. Four

3.People in the USA use advertisements to advertise_______.

A. products only　　 B. services only

C. products and services only　　 D. products, services and other things as well

4.The steps of making advertisements include the following except ________

A. the designers put forward their plans

B. the advertising company studies information about customers and products

C. the advertisements are tested

D. the advertisements are sold to companies

5.If the advertisement can make a product popular with customers, it proves that _____.

A. the advertisement is a failure　　 B. the advertisement is a success

C. the advertisement will be redesigned　　 D. the advertisement will not be accepted

九年级英语阅读单选中等难度题查看答案及解析

The population of the world in 20 century became very much _____than that in 19 century.

A. bigger　　 B. lager

C. greater　　 D. more

九年级英语单选题中等难度题查看答案及解析

The population of the world in 20 century became very much _____than that in 19 century.

A.bigger　　 　　 B.lager　　

C.greater　　　　 D.more

九年级英语单项填空中等难度题查看答案及解析

The fast development of technology(技术) has made many changes in our daily life. For the students in a public high school in Philadelphia, the change is really great. Their so-called “the School of the Future” opened recently with the help of Microsoft Corp. The combination(结合) of the latest technology and teaching methods makes it the focus in the world.

It takes the local government $63 million to build this “one of the most advanced high schools”. It is free and has no entrance exams(入学考试). All the 170 students are picked by drawing lots（抽签）from 1,500 applicants（申请者）. 95% of the students are blacks and about 85% are from low income families.

In the school, the students still sit in classrooms, but they work on their laptops(轻便电脑). Instead of textbooks, their lessons rely mostly on information found on the Internet. Students can learn at their own steps. They do their homework on computers and send it to teachers for marking. Parents can check their children’s study online at home.

The CEO of the School District said,“This is how school of today should be designed and developed to prepare students for life and work in the future.”

1.From the passage, we know that our daily life has been changed a lot because ______ .

A. a public high school in Philadelphia has developed fast

B. students in Philadelphia has developed fast

C. the technology has developed fast

2.How much does the local government spend building the “one of the most advanced high schools”?

A. $63,000,000　　 B. $6,300,00　　　　 C. $630,000

3.Who can see the students homework on the Internet?

A. their teachers

B. their parents

C. both A and B

4. Which of the following sentence is TRUE according to the passage?

A. The students in the “one of the most advanced high schools” paid nothing to enter it.

B. The students in the “one of the most advanced high schools” need to pass an exam to enter the school.

C. The students in the “one of the most advanced high schools” don’t have to do homework.

5.The best title of the article is ______.

A. the Students in a Public High School in Philadelphia

B. the School of the Future

C. How to Study Online

九年级英语阅读理解中等难度题查看答案及解析

—The population of the world in the 21th century became much _____ than that in the 20th.

—Yeah， and over eighteen percent of population in the world_________ Chinese.

A. bigger； is　　　　　　　　 B. larger； are

C. greater； is　　　　　　 D. more； are

九年级英语单项填空中等难度题查看答案及解析

Abing, one of ______ Chinese musicians of the 20th century, was born on August 17, 1893 in the eastern Chinese city of Wuxi.His official name was Hua Yanjun.

Abing's father was good at a number of musical______. He trained Abing in drums from the age of 10. Abing began learning the dizi at age 12, then the erhu. When he was 17, Abing first ______in religious ceremonies, and won acclaim for his musical talent and voice.

After his father's______ in 1914, Abing along with his cousin took charge of the temple (庙)which supported the family. However, Abing didn't have the______ to run it well. This drove Abing into poverty(贫穷). However, bad luck never came_____. At the age of 34, he developed a serious illness and became blind. He became ______and made a living as a street performer.

In 1939, he married Dong Caidi, a country woman in Jiangyin. After his______Abing performed every afternoon in a public square in Wuxi. He became famous for adding news into his music and songs， ______the war with Japan. After the performance, he would walk through the city streets, playing the erhu. This was a period of many works for Abing, and his most famous composition, Erquan Yingyue, was performed in this period. Till today, it ______as a classic of Chinese erhu and pipa music.

1.A. important　　 B. more important　　 C. most important　　 D. the most important

2.A. instruments　　 B. instrument　　 C. tools　　 D. materials

3.A. performance　　 B. perform　　 C. performing　　 D. performed

4.A. died　　 B. dead　　 C. death　　 D. being died

5.A. able　　 B. ability　　 C. smooth　　 D. director

6.A. along　　 B. lonely　　 C. loneliness　　 D. alone

7.A. homeless　　 B. hunger　　 C. electronic　　 D. afraid

8.A. marriage　　 B. marry　　 C. married　　 D. getting marry

9.A. specially　　 B. particular　　 C. especially　　 D. pity

10.A. considered　　 B. thought　　 C. is treat　　 D. is regarded

九年级英语完形填空极难题查看答案及解析