It’s clear that has been on this island, or h...

It’s clear that　　　　　 has been on this island, or how can you explain the left food?

A. nobody　　 B. somebody　　 C. anybody　　 D. everybody

九年级英语单选题中等难度题查看答案及解析

--Can you sing this English song? –Of course. It ____ many times on the radio.

A. has been taught　　 B. has taught　　 C. is taught

九年级英语单选题中等难度题查看答案及解析

How can you possibly miss the news? It　　 on TV all day long.

A. has been　　 B. had been

C. was　　 D. will be

九年级英语单选题中等难度题查看答案及解析

How much do you know about Earth-the planet that we live on? Our knowledge of Earth has been developing since ancient times. However, many puzzles about Earth remain unsolved. Live Science has published a list of the eight biggest mysteries about Earth. Let's look at some of them.

Where did water come from?

When it first came into being 4.5 billion years ago, Earth was a dry rock. So where did all of our water come from? Scientists think that it might have arrived in the form of ice by an asteroid(小行星) from outer space that hit our planet. But this theory has not been confirmed because there is very little related evidence(相关证据)to be studied.

What's in the core(地核)?

Scientists used to study meteorites(陨石)as small examples of Earth, believing that Earth's core was made of iron and nickel(镍). However, a later study in the 1950s proved this way to be wrong because it found that Earth would be too light to provide gravity if its core contained only iron and nickel. Today, scientists continue to bring forward different theories, but none have been confirmed.

How was the Moon born?

Scientists have found that the chemical compositions(成分)of Earth and the Moon are very similar. That suggests that the Moon actually came from Earth. For example, it could be a piece of Earth that separated when Earth hit another planet. It is also possible that when Earth first came into being, it spun(旋转)very fast and threw off enough molten(熔化的)rock to later from the Moon.

1.What's the story mainly about?

A.How Earth came into being. B.Where Earth's water came from.

C.How the Moon was formed. D.Unexplained mysteries about Earth.

2.What do we know about where water may come from?

A.Earth's water may come from ice that melted 4.5 billion years ago.

B.Earth's water may come from a small planet that hit Earth.

C.We don't know where water came from.

D.There is lots of evidence that tells us where water came from.

3.What does the underlined phrase "bring forward" in Paragraph 5 probably mean?

A.Check. B.Raise. C.Improve. D.Receive.

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

A.Scientists believed Earth's core was made of meteorites.

B.A study in the 1950s proved that Earth's core is made of iron and nickel.

C.The Moon and Earth are made of similar materials.

D.Three possibilities of where the Moon came from are mentioned.

九年级英语阅读单选中等难度题查看答案及解析

How much do you know about Earth—the planet that we live on? Our knowledge of Earth has been developing since ancient times. However, many puzzles (谜) about Earth remain unsolved. Live Science has published a list of the eight biggest mysteries about Earth. Let’s look at some of them.

Where did water come from?

When it first came into being 4.5 billion years ago, Earth was a dry rock. So where did all of our water come from? Scientists think that it might have arrived in the form of ice by an asteroid (小行星) from outer space that hit our planet. But this idea has not been confirmed (证明) because there is very little related evidence(相关证据) to be studied.

What’s in the core (地核)?

Scientists used to study meteorites (陨石) as small examples of Earth, believing that Earth’s core was made of iron and nickel (镍). However, a later study in the 1950s proved this way to be wrong because it found that Earth would be too light to provide gravity (引力) if its core contained only iron and nickel. Today, scientists continue to bring forward different ideas, but none have been confirmed.

How was the moon born?

Scientists have found that the chemical compositions (成分) of Earth and the Moon are very similar. That suggests that the Moon actually came from Earth. For example, it could be a piece of Earth that separated when Earth hit another planet. It is also possible that when Earth first came into being, it spun (旋转) very fast and threw off enough molten (熔化的) rock to later form the Moon.

1.What’s the main idea of the passage?

A.How Earth came into being.

B.Where Earth’s water came from?

C.How the moon was formed?

D.Unexplained mysteries about Earth.

2.What do we know about where water may come from?

A.Earth’s water may come from ice that melted 4.5 billion years ago.

B.Earth’s water may come from a small planet that hit Earth.

C.We don’t know where water came from.

D.There is lots of evidence that tells us where water came from.

3.What does the underlined phrase “bring forward” in Paragraph 5 probably mean?

A.Check B.Raise

C.Improve D.Receive

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

A.Scientists used to believe Earth’s core was made of meteorites.

B.A study in the 1950s proved that Earth’s core is made of iron and nickel.

C.The moon and Earth are made of similar materials.

D.Three possibilities of where the Moon came from are mentioned.

九年级英语阅读单选中等难度题查看答案及解析

How many things can you see in the night sky? A lot! On a clear night you can see the moon, some planets, and thousands of sparking stars.

You can see even more with a telescope. You might see that many stars look larger than others. You might see that some stars that look white are really red or blue. With bigger and bigger telescopes you can see more and more objects in the sky. And you can see those objects in more and more detail.

But scientists believe there are some things in the sky that we will never see. We won’t see them with the biggest telescope in the world, on the clearest night of the year.That’s because they’re invisible. They’re the mysterious dead stars called black holes.

You might find it hard to imagine that stars die. After all, our sun is a star. Year after year we see it up in the sky, burning brightly and giving us heat and light. The Sun certainly doesn’t seem to be getting old or weak. But stars do burn out and die after billions of years.

As a star’s gases burn, they give off light and heat. But when the gases run out, the star stops burning and begins to die.

So next time you look up at the night sky, remember: there’s more in the sky than we can see!

1.On a clear night we might see things except______.

A．the moon         B．some planets       C．sparkling stars      D．the sun

2.How can we see even more in the sky?

A．By using a telescope

B．By using a microscope

C．By climbing up to the top of a mountain

D．By going outside on a clear night.

3.What does the underlined word”invisible”mean in Chinese?

A．看不见的         B．听不见的          C．摸不着的         D．无形的

4.When a star’s gases_______,the star begins to die.

A．burn             B．run out           C．give off heat       D．get weak

5.Which of the following is NOT TRUE according to the passage?

A．We might see that many stars look larger than others with a telescope

B．We might see that some stars that look white are really red and blue with a telescope.

C．We can see some objects in more and more detail with bigger and bigger telescopes.

D．The sun certainly seems to be getting old and weak.

九年级英语阅读理解中等难度题查看答案及解析

-What can we do to ______bird flu from spreading？

-Try not to buy or eat chicken that has not been checked．

A.prevent B.cause C.discover D.damage

九年级英语单选题中等难度题查看答案及解析

Perhaps you’ve already watched or heard about Readers, a TV show that has been quite popular in the last two months. It invites different people to r1. aloud on the stage. The show also tells the moving s2.behind those people. They can read everything, like poems, books, and l3. between friends，family members, and so on. By reading aloud, the words on the paper come to life.

Many people are f4. of the show. It is often seen that the whole family sit in front of the TV, waiting for the show. They also begin to enjoy reading aloud at home. Besides reading at home, the show provides people a special p5. to read. It is a reading pavilion (朗读亭). You can find them in many cities, including Shanghai, Hangzhou and Xi’an.

The pavilion is very s6.. Only one person can come into it each time. You can read anything as you like and your voice will be r7.. Everyone can read for three minutes in the pavilion. The show will pick some of the readers and i8. them to read on TV.

Old and young, people of all a9. read in the pavilion. “Reading should be just like singing and talking,” said Dong Qing, the host and producer of the show. “We can express our true f10. by reading aloud.”

九年级英语单词填空中等难度题查看答案及解析

Can you tell me how long the bookstore has ________?

A. been opened　 　　　　　　 　　 B. opened

C. been open　　　　　　　　　　 　　 D. been opening

九年级英语单项填空中等难度题查看答案及解析

Have you ever been so worried about something that you have a headache or even can't sleep at night？Then you cannot pay enough attention during a test or in your study. If so，then you know that is stress. You are worried too much about something. The bad feeling in your mind can make you angry，sad or scared，and even can give you a stomachache or a headache.

However，some kind of stress is good. Excitement might happen when you are called to give a speech at school. You feel nervous but excited. This kind of stress can help you to get things well done. And you may do a better job in your test if the stress pushes you to prepare more beforehand.

On the other hand，bad stress can last long if you are unable to solve your problems. You may not feel well，if your parents are having a quarrel，if a family member is badly ill，if you're doing poorly at school，or if anything else makes you unhappy. This kind of stress isn't going to help you. And it can actually let you down in your daily life.

The best way to fight the stress is to have a balanced life. Make sure you get enough sleep and eat properly. Have some regular exercise. You should take some time for fun. Get advice from your parents，teachers and friends. Soon after that，you'll probably get away from your stress.

九年级英语填空困难题查看答案及解析