When were the first modern traffic lights inv...

When were the first modern traffic lights invented？

A.In 1903. B.In l908. C.In 1912.

九年级英语听短对话回答问题中等难度题查看答案及解析

—When ________ the first practical light bulb ________?

—In 1879.

A.does; invent B.is; invented C.did; invent D.was; invented

九年级英语单选题中等难度题查看答案及解析

Twentieth Century Inventions

1903-The first flight succeeded In 1900, Wilbur Wright said flight was possible for man. After much work, he and his brother Orville Wright made this dream come true.On December 17, 1903, the brothers made the first successful airplane flight on a windy beach at Kitty Hawk, North Carolina. The brothers' plane flew 120 feet. Although the flight lasted only 12 seconds, it moved the course of history in a new direction.

1935-Nylon was invented In 1928, a new chemical lab was opened to make a kind of man-made materials. Wallace Carothers took part in the team when he was 32 years old. In 1934, he made fibers(纤维), but the fibers were quite weak. He didn't give up. After many experiments, he produced the fibers "nylon". Carothers was very satisfied with his work. Nylon hit the markets in 1939, and quickly became a replacement of silk. But it was a pity that he didn't see the wide use of his invention. He died in April, 1937.

1968-The computer mouse was first shown in public.As a graduate student, Douglas Engelbart began to imagine ways in which all sorts of information could be on screens. In 1964, Douglas Engelbart made the first computer mouse. The computer mouse had a wooden shell with two metal wheels. In 1968, the first computer mouse appeared in public. It was named"mouse "because a tail came out at the end. In later years. the computer mouse became more and more important. Douglas Engelbart changed the way that computers worked. Now computer mice are becoming increasingly useful. And there are many different shapes of computer mice in the world.

1.When did the first flight succeed?

_____________________________________________________

2.What was opened to make a kind of man-made materials in 1928?

_____________________________________________________

3.When did Wallace Carothers die?

_____________________________________________________

4.What was first shown in public in 1968?

_____________________________________________________

5.Who changed the way that computers worked?

_____________________________________________________

九年级英语回答问题中等难度题查看答案及解析

When you cross the road, you 　　　　　 look at the traffic lights first.

A.may B.can C.should D.will

九年级英语单选题中等难度题查看答案及解析

Do you know when restaurants were invented? The first restaurants were invented thousands of years ago. However, they were very different from restaurants today.

The first restaurants were in ancient Greece (希腊) and ancient Rome. These restaurants served food in large stone bowls. People didn’t order food from a menu. Everyone shared the food from big bowls. People believe that these places were very popular because most homes in ancient Greece and Rome did not have kitchens. Also, people didn’t have to store (储存) food at home if they ate their meals at these restaurants.

Later, restaurant began to open in China. In the early 1100s, more than one million people lived in the city of Hangzhou, China. It was a very busy city, and people had money. All of these people had to eat. Smart cooks started cooking and selling food along the big street in the city. Unlike in ancient Greece and Rome, people in China could choose food from a menu. They didn’t have to eat the same food as everyone else.

For the next several centuries, there were restaurants all over the world. People could buy food in the street or at inns (小旅馆). Then in the middle of the 1700s, restaurants started opening in Paris. These restaurants were more similar to restaurants we know today. There was a wider choice of food, and eating in these restaurants was a more enjoyable experience. In the 19th century, trains made travel much faster and simpler. In the end, this kind of restaurant began to appear all over Europe and in other parts of the world.

Now, restaurants are everywhere. You can buy different kinds of food. You can get food sent to your door. But remember it wasn’t always like that.

1.It is believed that these first restaurants were popular because ________.

A.people could eat different food B.the food there was very cheap

C.people were too busy to cook D.most homes didn’t have kitchens

2.How were the restaurants in Hangzhou different from the first restaurants?

A.They offered menus to customers.

B.They usually served the same food.

C.They sold the food in large stone bowls.

D.They prepared food for all people in the city.

3.What does the underlined part“these restaurants”in Paragraph 4 refer to?

A.Restaurants in ancient Greece and ancient Rome.

B.Restaurants in Hangzhou in the early 1100s.

C.Restaurants in Paris in the middle of the 1700s.

D.Restaurants all over Europe in the 19th century.

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

A.Now people can get food without going out.

B.The first restaurants were similar to restaurants today.

C.Hangzhou used to be a city that had no smart cooks.

D.People in ancient Greece and Rome usually stored food at home.

5.The writer wrote this passage to ________.

A.help us choose restaurants B.tell us the history of restaurants

C.encourage us to eat at restaurants D.show us the changes of eating habits

九年级英语阅读单选困难题查看答案及解析

Do you know when restaurants were invented? The first restaurants were invented thousands of years ago. However, they were very different from restaurants today.

The first restaurants were in ancient Greece and ancient Rome. These restaurants served food in large stone bowls. People didn't order food from a menu. Everyone used to share the food from big bowls. People believe that these places were very popular because most homes in ancient Greece and Rome did not have kitchens. Also, people didn't have to store food at home if they ate their meals at these restaurants.

Later, restaurants began to open in China. In the early 1100s, more than 1 million people lived in the city of Hangzhou, China. It was a very busy city, and people had money. All of these people had to eat. Smart cooks started cooking and selling food along the Imperial Way, a very big street in the city. Unlike in ancient Greece and Rome, people in China could choose food from a menu. They didn't have to eat the same food as everyone else.

For the next several centuries, there were restaurants all over the world. People could buy food on the street or at inns- small hotels. Then, in the middle of the 1700s, restaurants started opening in Paris. These restaurants were more similar to restaurants we know today. There was a bigger. variety of food, and eating in these restaurants was a more enjoyable experience. In the 19th century, trains made travel much faster and simpler. In the end, this kind of restaurant began to appear all over Europe and in other parts of the world.

Now, restaurants are everywhere. You can buy a variety of different kinds of food. You can have food sent to your door. But remember it wasn't always like that.

1.It is believed that these first restaurants were popular because.

A. people could eat different food.　　 B. the food there was very cheap.

C. people were too busy to cook.　　 D. most homes didn't have kitchens.

2.How were the restaurants in Hangzhou different from the first. restaurants?

A. They offered menus to customers.

B. They usually served the same food.

C. They sold the food in large stone bowls.

D. They prepared food for all people in the city.

3.The underlined part "these restaurants” in Paragraph 4 means.

A. restaurants in ancient Greece and ancient Rome

B. restaurants in Hangzhou in the early 1100s

C. restaurants in Paris in the middle of the 1700s

D. restaurants all over Europe in the 19th century

4.The author wrote this article to .

A. help us to choose restaurants　　 B. tell us the history of restaurants

C. encourage us to eat at restaurants　　 D. show us the changes of eating habits

九年级英语阅读单选中等难度题查看答案及解析

The first robots were invented in the 1920s. Robots have appeared in many American films. In some films, they are stronger, faster and cleverer than people.

In real life, robots are mainly used in factories. They do some dangerous and difficult jobs for humans.

Robots also help disabled people, for example, blind people. Today many blind people have a guide dog to help them. In the future, guide dogs might be robot dogs.

One kind of robot guide dog has wheels. It moves in front of the owner. It is very clever. It knows the speed of its owner’s walk. The owner wears a special belt (带子). This belt sends instructions to the owner from the dog, such as “Stop here”, “Turn left” or “Turn right”.

In the United States, another kind of robot helps disabled people to take care of themselves in their daily life. The robot hears the sound of its owner’s voice. It follows instructions such as “Turn the page” or “Make a cup of coffee”.

Robots are also used in American hospitals. They can do simple jobs. At one hospital, for example, a robot takes meals from the kitchen to patients’ rooms. It never gets lost because this robot has a map of the hospital in its computer memory.

Though robots can help people in many different ways, they will never take the place of humans.

1.From the passage, we know robots cannot be ______.

A．dangerous animals B．factory workers

C．guide dogs　 D．hospital helpers

2.A robot guide dog ______.

A．goes in front of the blind people

B．walk side by side with blind people

C．has a map in its head

D．helps patients with their meals

3.The underlined word “disabled” means ______.

A．不能的 B．有害的 C．失灵的 D．残疾的

4.Some disabled people need robots help to ______.

A．take care of themselves

B．talk to other people

C．become scientists

D．do dangerous jobs

5.In the passage, the writer wants to tell us that ______.

A．robots are stronger and cleverer than humans

B．disabled people cannot look after themselves without the robots

C．robots will take the place of humans some day in the future

D．robots can help humans in many different ways

九年级英语阅读理解中等难度题查看答案及解析

The first robots were invented in the 1920s. Robots have appeared in many American films. In some films, they are stronger, faster and cleverer than people.

In real life, robots are mainly used in factories. They do some dangerous and difficult jobs for humans.

Robots also helpdisabledpeople, for example, blind people. Today many blind people have a guide dog to help them. In the future, guide dogs might be robot dogs.

One kind of robot guide dog has wheels. It moves in front of the owner. It is very clever. It knows the speed of its owner’s walk. The owner wears a special belt (带子). This belt sends instructions to the owner from the dog, such as “Stop here”, “Turn left” or “Turn right”.

In the United States, another kind of robot helps disabled people to take care of themselves in their daily life. The robot hears the sound of its owner’s voice. It follows instructions such as “Turn the page” or “Make a cup of coffee”.

Robots are also used in American hospitals. They can do simple jobs. At one hospital, for example, a robot takes meals from the kitchen to patients’ rooms. It never gets lost because this robot has a map of the hospital in its computer memory.

Though robots can help people in many different ways, they will never take the place of humans.

1.From the passage, we know robots cannot be ______.

A. dangerous animals　　 B. factory workers

C. guide dogs　　 D. hospital helpers

2.A robot guide dog ______.

A. goes in front of the blind people

B. walk side by side with blind people

C. has a map in its head

D. helps patients with their meals

3.The underlined word “disabled” means ______.

A. 不能的　　 B. 有害的　　 C. 失灵的　　 D. 残疾的

4.Some disabled people need robots help to ______.

A. take care of themselves

B. talk to other people

C. become scientists

D. do dangerous jobs

5.In the passage, the writer wants to tell us that ______.

A. robots are stronger and cleverer than humans

B. disabled people cannot look after themselves without the robots

C. robots will take the place of humans some day in the future

D. robots can help humans in many different ways

九年级英语阅读单选中等难度题查看答案及解析

The first robots were invented in the 1920s. Robots have appeared in many American films. In some films, they are stronger, faster and cleverer than people.

In real life, robots are mainly used in factories. They do some dangerous and difficult jobs for humans.

Robots also helpdisabledpeople, for example, blind people. Today many blind people have a guide dog to help them. In the future, guide dogs might be robot dogs.

One kind of robot guide dog has wheels. It moves in front of the owner. It is very clever. It knows the speed of its owner’s walk. The owner wears a special belt (带子). This belt sends instructions to the owner from the dog, such as “Stop here”, “Turn left” or “Turn right”.

In the United States, another kind of robot helps disabled people to take care of themselves in their daily life. The robot hears the sound of its owner’s voice. It follows instructions such as “Turn the page” or “Make a cup of coffee”.

Robots are also used in American hospitals. They can do simple jobs. At one hospital, for example, a robot takes meals from the kitchen to patients’ rooms. It never gets lost because this robot has a map of the hospital in its computer memory.

Though robots can help people in many different ways, they will never take the place of humans.

1.From the passage, we know robots cannot be ______.

A.dangerous animals B.factory workers

C.guide dogs D.hospital helpers

2.A robot guide dog ______.

A.goes in front of the blind people

B.walk side by side with blind people

C.has a map in its head

D.helps patients with their meals

3.The underlined word “disabled” means ______.

A.不能的 B.有害的 C.失灵的 D.残疾的

4.Some disabled people need robots help to ______.

A.take care of themselves

B.talk to other people

C.become scientists

D.do dangerous jobs

5.In the passage, the writer wants to tell us that ______.

A.robots are stronger and cleverer than humans

B.disabled people cannot look after themselves without the robots

C.robots will take the place of humans some day in the future

D.robots can help humans in many different ways

九年级英语阅读单选中等难度题查看答案及解析

The first robots were invented in the 1920s. Robots have_____in many American films. In some films, they are stronger, _____ and cleverer than people. In real life, robots are mainly used in _____. They do some dangerous and difficult jobs for humans. Robots also help _____people, for example, blind people.

Today many blind people have a guide dog to help them. In the future, guide dogs might be _____dogs. One kind of robot guide dog has wheels. It moves in front of the owner. It is very clever. It knows the _____ of its owner's walk. The owner wears a special belt. This belt _____instructions to the owner from the dog, such as “Stop here”， “Turn left” or “Turn right”.

In the United States, another kind of robot helps disabled people to take care of _____ in their daily life.　 Robots are also used in American hospitals. They can do simple jobs. At one hospital, for example, a robot takes meals from the kitchen to a patient's room. It never _____ because this robot has a map of the hospital in its computer memory. ______ robots can help people in many ways, they will never take the place of humans.

1.A. created　　 B. appeared　　 C. used　　 D. produced

2.A. faster　　 B. slower　　 C. more careless　　 D. weaker

3.A. hospitals　　 B. restaurants　　 C. houses　　 D. factories

4.A. unhappy　　 B. successful　　 C. disabled　　 D. talented

5.A. robot　　 B. toy　　 C. paper　　 D. real

6.A. shape　　 B. size　　 C. speed　　 D. shoe

7.A. accepts　　 B. sends　　 C. changes　　 D. follows

8.A. themselves　　 B. ourselves　　 C. yourselves　　 D. itself

9.A. gets back　　 B. gets over　　 C. gets up　　 D. gets lost

10.A. Though　　 B. But　　 C. Because　　 D. Until

九年级英语完型填空困难题查看答案及解析