1.风笛既不是植物也不是动物。Bagpipes are plants animals.2....

1.风笛既不是植物也不是动物。

Bagpipes are 　　　　　　　 plants 　　　　　 animals.

2.我们需要同其他文化的人交朋友。

We need to 　　　　　　 　　　　　　　　 with people from other cultures.

3.你没有把我当作了客人。

You didn’t 　　　　　　 me 　　　　　　　 a guest.

4.同中国相比，加拿大人口不多。

China, Canada doesn’t have many people.

5.我会给你做烙饼直到你吃烦。

I would make pancakes for you until you _______ _______ of them.

九年级英语翻译中等难度题查看答案及解析

用适当的介词填空。

1.All animals ________ men feed on plants or other animals.

2.The noodles are salty because my mother sprinkled too much salt ________ them.

3.The change of the plan led ________ another result.

4.Badminton is played by millions of people in ________ 200 countries.

5.Players ________ the same team must work toge­ther to get the ball in the other team’s basket.

九年级英语其他题困难题查看答案及解析

What are fossils?

Fossils are the remains of plants or animals. For such remains to be considered fossils, scientists have decided they have to be over 10,000 years old. The word fossil comes from the Latin word “fossilis”, which means, “dig up”.  Fossils can be divided into “body fossils” and “trace(痕迹) fossils”. Body fossils are the remains of a plant or animal’s body. Trace fossils are the remains of the activity of an animal, such as footprints, egg shells, and nests.

How are fossils formed?

Some animals were quickly covered after their death by sediment(沉淀物) like earth, mud or sand. Over time, the parts of the animals that didn’t rot (usually the harder parts like bones and teeth) were covered in the newly formed sediment. Then, a lot of chemical changes happened to the animals bodies. Water with minerals(矿物质) went into the bone and took the place of the chemicals in the bone with rock-like minerals. In the end we get a heavy, rock-like copy of the original object - a fossil. There weren’t any changes in size and shape when an object changed into a fossil, but the fossil of a bone doesn’t have any bone in it! It is chemically more like a rock! According to scientists, fossils have been found on every continent(大陆) on Earth.

1.Trace fossils can’t be formed from the ______ of some kind of animals.

A. footprints　　 B. nests　　 C. eggs　　 D. bodies

2.______ brings the rock-like minerals into the bone.

A. Sunlight　　 B. Earth　　 C. Water　　 D. Air

3.According to the last paragraph, the fossil is as ______ as the original object.

A. heavy　　 B. big　　 C. old　　 D. clean

4.We can know that ______ from the passage.

A. scientists think that the fossils may have a history of 100 centuries.

B. people haven’t found any fossil on the continent of Africa.

C. we can find some real bones in the fossils of a bone.

D. there are many kinds of sediment in the fossils.

5.This passage most probably comes from ______.

A. an advertisement　　 B. a medical magazine　　 C. a science book　　 D. a notice

九年级英语阅读理解困难题查看答案及解析

Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.

Harmer, a professor in the University of California at Davis, Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.

By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.

The indoor plants did start tracking the “sun” again when the apparent source of lighting was moved across the room. The plants could reliably tack the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours.

When sunflowers track the sun, the east sides of their stems grew more rapidly than the west sides. At night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher levels on the sunward side of the plant during the day or on the other side at night. A plant growth-regulating hormone (激素), called auxin, appears to be a key driver.

The “dance” to the sun cycle obviously slows when the sunflower matures (成熟) and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the east.

“Bees like warm flowers.” Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good.

“The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day.” he said “We’re currently testing this idea.”

1.Why did Harmer do the experiment on sunflowers?

A.To see how sunflowers grow up B.To show what sunflowers’ genes are.

C.To study why sunflowers track the sun. D.To check if sunflowers swing in cloudy days.

2.What does the underlined word “staking” probably mean in Paragraph 3?

A.breaking B.controlling C.growing D.searching

3.What is the result of sunflowers being stopped from moving?

A.They will produce a number of new genes. B.They will grow faster than usual.

C.They won’t swing back though set free. D.They won’t grow well.

九年级英语阅读单选中等难度题查看答案及解析

It may seem easy to say that plants and animals are different. Any child can tell the difference between  a tree and a dog. But those differences are far deeper than just what they look like. The cells (细胞) that plants are made up of are different. In other words, the cell wall of plants has something special.

First of all, it's important to find that not all plant cells have a cell wall. Besides, there are many differences of a cell wall based on the kinds of plant. The following is meant to be what a plant cell wall is  like.

The cell wall of a plant is on the outside of the cell membrane (膜). It is usually hard and cannot be bent easily, but the degree of flexibility (韧性) of the cell wall is different. It is based on the special use that the cell has in keeping the plant alive. Cells that make up the trunk of a tree are clearly less flexible than　 cells on a leaf.

Cell walls act in many ways. They serve to protect the plant. They provide support, as well as help in the movement of chemicals and wastes into and out of the cell.  More importantly, they control the water　 that goes in and out.  Plants must have good water controlling systems (系统), allowing them to keep water during dry seasons, and get rid of unnecessary water. Plants can't walk around to find water, so  being able to control water is very important.

So there you have it , what a plant cell wall is. Of course, there are many other things that are not talked about here. Knowing more about plant cell wails requires further study and research.

1.From the first two paragraphs we can find that _____.

A. all plants have a ceil wall　　　　　　　　　

B. plant cells and animal cells are the same

C. different kinds of plant have different cell walls

D. there are no differences between the cells of a tree and a dog

2.The underlined word "bent" in the passage is the closest in meaning to _____.

A. 变形的 　　 B. 防水的   　 C. 太阳灼伤的     　　 D. 表皮破损的

3.Cells in the trunk of a tree are _____ those on a leaf.

A. as flexible as             　　　　　　  B. not so flexible as

C. more important than                　　 D. less important than

4.What is the most important use of a plant cell wall?

A. To protect the plant.                　　　 B. To provide support.

C. To move chemicals and wastes.       D. To control the water.

九年级英语阅读理解困难题查看答案及解析

National parks are large areas of public land. They give a safe home for local plants and animals. They help keep the air and water clean. They also give us the best trips. Today, there are nearly 7,000 national parks around the world. Forbes has listed 12 of the most beautiful ones in the world that will surprise you with their amazing landscape, geographic wonders and colourful plants and animals.

The Grand Canyon (大峡谷)National Park of the US is one of the Seven National Wonders of the World. It is best known for its size and depth. It is 446 kilometers long, up to 29 kilometers wide, and 1.6 kilometers deep. The immensity of the canyon makes people think big. Every year, about 5 million people visit here. Taking a tour in the South Rim offers visitors the park’s full views, while the North Rim shows beautiful wild flowers.

If you love animals, you’ll like the Serengeti National Park in Tanzania. The “ Big Five” live here. They are the lion, African elephant, African leopard, black rhinoceros and African buffalo. The name “ Big Five” came from the five animals that were the hardest to catch. Now they are what people most want to see in the wild. If you visit the park, you should never miss the migration(迁徙) of over 1.5 million wildebeests(角马)and 250,000 zebras every year. This is the most famous site of the park.

1.Which is NOT right about national parks according to Paragraph 1?

A. A national park is public land that covers a large area.

B. Wild plants and animals are protected in national parks.

C. Forbes has listed twelve of the world’s largest national parks.

D. National parks are attractive because of their natural beauty.

2.The underlined word “ immensity” refers to __________.

A. great size　　 B. natural wonder　　 C. colourful view　　 D. unusual beauty

3._________kinds of animals are mentioned in the passage.

A. Five　　 B. Six　　 C. Seven　　 D. Eight

4.If the writer continues writing the article, he would most likely write about ___________.

A. ways to keep the air and water clean　　 B. more national parks in the world

C. his wonderful trip to the Grand Canyon　　 D. famous historic wonders in Africa

九年级英语阅读理解中等难度题查看答案及解析

National parks are large of areas of public land . They give a safe home for local plants and animal . They help keep the air and water clean . They also give us the best trips . Today ,there are nearly 7，000 national parks around　 the world . Forbes has listed 12 of the most beautiful ones in the world that will surprise　 you with their　 amazing landscape ,geographic wonders and colorful plants and animals .

The Grand Canyon National Park of the US is one of the Seven Natural Wonders of the World . It is best known for its size and depth . It is 446 kilometers long ,up to 29 kilometers wide ,and 1. 6 kilometers deep . The immensity of the canyon makes people think big . Every year ,about 5million people visit here . Taking a tour in the South Rim offers vistors the park’s full views,while the North Rim shows beautiful wild flowers .

If you love animals ,you’ll like the Serrengeti Natinoal Park in Tanzania . The “Big Five ”live here . They are the lion . African elephant ,African leopard ,black rhinoce and African buffalo . The name　 “Big Five ”came from the five animals that were the hardest to catch . Now they are what people most want to see in the wild . If you visit the park ,you should never miss the migration of over 1. 5million wildebeests and 250，000 zebras every year. This is the most famous site of the park .

1.Which is NOT right about national parks according to Paragraph 1?

A. Anational park is public land that covers a large area.

B. Wild plants and animals are protected in national parks.

C. Forbes has listed twelve of the world’s largest national parks.

D. National parks are attractive because of their natural beauty.

2.The underlined word“immensity”refered to_______.

A. great size　 B. natural wonder　 C. colorful view　　 D. unusual beauty

3.______kinds of animals are mentioned in the passage.

A. Five　 B. Six　 C. Seven　　 D. Eight

4.The best title for the passage may be “_______”.

A. Taking a tour in the　 Grand Canyon　　

B. Travelling to the Serengeti National Park

C. Seven National Wonders of the World　　

D. Stepping into the wonders of the wildlife

5.If the writer continues the article ,he would most likely write about _______.

A. ways to keep the air and water clean　　

B. more national parks in the world

C. his wonderful trip to the Grand Canyone　

D. famous historic wonders in Africa

九年级英语阅读理解中等难度题查看答案及解析

Many countries are setting up nation parks　　　 animals and plants can be protected.

A. when　　　　　　　　　 B.which　　　　　　　　 C.where

九年级英语单项填空简单题查看答案及解析

National parks are large areas of public land. They give a safe home for local plants and animals. They help keep the air and water clean. They also give us the best trips. Today, there are nearly 7，000 national parks around the world. Forbes has listed 12 of the most beautiful ones in the world.

The Grand Canyon National Park of the US is one of the Seven Natural Wonders of the World. It is best known for its size and depth. It is 446 kilometres long, up to 29 kilometres wide, and 1.6 kilometres deep. The immensity of the canyon makes people think big. Every year, about 5 million people visit here. Taking a tour in the South Rim offers visitors the park's full views, while the North Rim shows beautiful wild flowers.

If you love animals, you'll like the Serengeti National Park in Tanzania. The “Big Five” live there. They are the lion, African elephant, African leopard(豹), black rhinoceros(犀牛) and African buffalo(水牛). The name “Big Five” came from the five animals that were the hardest to catch. Now they are what people most want to see in the wild. If you visit the park, you should never miss the migration(迁徙) of over 1.5 million wildebeest(角马) and 250，000 zebras every year.

1.Which is NOT right about national parks according to Paragraph 1?

A. A national park is public land that covers a large area.

B. Wild plants and animals are protected in national parks.

C. Forbes has listed twelve of the world's largest national parks.

D. National parks are attractive because of their national beauty.

2.The underlined word “immensity” refers to ________．

A. great size　　 B. natural wonder

C. colourful view　　 D. unusual beauty

3.________ kinds of animals are mentioned in the passage.

A. Five　　 B. Six　　 C. Seven　　 D. Eight

4.The best title for the passage may be “________”．

A. Taking a tour in the Grand Canyon

B. Travelling to the Serengeti National Park

C. Seven Natural Wonders of the World

D. Stepping into the wonders of the wildlife

九年级英语阅读单选中等难度题查看答案及解析

National parks are large areas of public land. They give a safe home for local plants and animals. They help keep the air and water clean. They also give us the best trip. Today, there are nearly 7，000 national parks around the world. Forbes has listed 12 of the most beautiful ones in the world that will surprise you with their amazing landscapes, geographic wonders and colourful plants and animals.

The Grand Canyon National Park of the US is a great wonder of the natural world. It is best known for its size and depth(深度). It is 446 kilometres long, up to 29 kilometres wide, and 1.6 kilometres deep. The immensity of the canyon makes people think big. Every year, about 5 million people visit here. Taking a tour in the South Rim offers visitors the park's full views, while the North Rim shows beautiful wild flowers.

If you love animals, you'll like the Serengeti National Park in Tanzania. The “Big Five” live there. They are the lion, African elephant, African leopard, black rhinoceros and African buffalo. The name “Big Five” came from the five animals that were hardest to catch. Now they are what people most want to see in the wild. If you visit the park, you should never miss the migration(迁徙) of over 1.5 million wildebeest(角马) and 250，000 zebras every year. This is the most famous site of the park.

1.Which is NOT right about national parks according to Paragraph 1?

A. A national park is public land that covers a large area.

B. Wild plants and animals are protected in national parks.

C. Forbes has listed twelve of the world's largest national parks.

D. National parks are attractive because of their natural beauty.

2.The underlined word “immensity” refers to________.

A. great size　　 B. natural wonder

C. colourful view　　 D. unusual beauty

3.The best title for the passage may be “________”.

A. Taking a tour in the Grand Canyon

B. Travelling to the Serengeti National Park

C. Seven Natural Wonders of the World

D. Stepping into the wonders of the wildlife

4.If the writer continues the passage, he would most likely write about ________.

A. ways to keep the air and water clean

B. more national parks in the world

C. his wonderful trip to the Grand Canyon

D. famous historic wonders in Africa

九年级英语阅读单选中等难度题查看答案及解析