内容正文:
Unit 5 Looking into nature
Developing ideas:
Reading for writing
一、根据句意及首字母或汉语注释完成单词(每小题1分,共5分)
1. Is there ________ (任何人) in the classroom? I need some help.
1. China is a large c________ with a long history and rich culture.
1. I used a ________ (放大镜) to read the tiny words on the old coin.
1. Jim’s family is known for their great w________ , but they still live a simple life.
1. The homework seemed________ (无数的) and the students felt very tired.
二、用括号中所给单词的适当形式填空(每小题1分,共5分)
1. Mary fell________ (serious) ill after going camping.
1. Look!The________ (fall)leaves are dancing in the air like birds.
1. I don’t know him well; I’ve only met him________ (two).
1. The Grand Canyon is one of the natural________ (wonder) of the world.
1. The Greens travelled to the forest________ (explore) the natural world.
三、用合适的词完成句子,每空限填一词(每小题1分,共5分)
1. Mozart started composing music________ the age of five.
1. The meeting lasted________ two hours. Everyone felt a bit tired.
1. The government carried________ a new policy (政策) to protect the environment.
1. ________ the heavy rain, the football match went on as planned.
1. ________ the improvement (改善) of her health, she became more confident and active.
四、词汇运用(每小题1分,共10分)
阅读下面短文,根据括号内所给汉语注释写出单词的正确形式(每空一词)。
Samuel was a famous explorer. His lifelong dream was to find a hidden valley deep in the Amazon rainforest. He didn’t care about fame or 1. ________ (财富). For him, the greatest 2. ________ (奖品) was the discovery itself.
He planned this journey for an 3. ________ (无数的) number of days. However, his family were worried. Before leaving, he spoke 4. ________ (轻柔地) to his two little 5. ________ (孙女), “Don’t worry; I will be back with amazing stories.”
When he finally reached the rainforest, the difficulties began. The jungle was so thick that he could 6.________ (几乎不)see the sky. As he grew older, he found that his 7.________ (视力) was not as good as before. This made the journey even more challenging. He knew this adventure would be 8.________ (属于) to the most difficult one in his life.
After months of hardship, he made a great discovery. He proved that his theory was 9.________ (真实的). Later, the government announced (宣布) the 10. ________ (国家) protection of the whole area. Samuel’s story teaches us that the spirit of exploration can overcome (克服) any difficulty.
五、阅读理解(每小题2分,共8分)
① Can plants talk? Modern research has found something amazing: They do communicate with each other.
② It has been known for some time that plants use chemicals to communicate with each other. This happens when a plant gets attacked by insects. The plant gives out chemicals from the leaves that are being eaten. When another plant gets the chemicals, it starts to give out its own, different chemicals. Some of these chemicals drive insects away. Others attract the wasps (吸引黄蜂)! The wasps kill the insects that are eating the plants. Scientists hope to learn more about this plant warning system, so that we can use it to grow more crops.
③ More surprisingly, plants also use sounds to communicate. People can’t hear these sounds, but plants are making them. Some plants make noises with their roots. Some trees make clicking noises when there is not enough water.
④ Most surprisingly of all, plants have an amazing system of communication. The system can link (连接) nearly every plant in a forest. Scientists call this system the “wood wide web”. It is in some ways similar to the Internet we use. Using the wood wide web, plants can share information and even food with each other. However, it may lead to bad effects. Plants may use it to steal food from each other, or spread chemicals to attack other plants. Perhaps one day scientists will learn how to create a “firewall” to help avoid these attacks within the wood wide web.
Scientists are learning more every day about the secret ways in which plants talk to each other. Maybe one day we will know enough about plant communication to be able to “talk” with them ourselves.
( )1. What will plants do when they are attacked by insects?
[A] They will kill the insects by themselves.
[B] They will make the wasps to kill the insects.
[C] They will send out signals to ask for help.
[D] They will produce chemicals as a warning or a call for help.
( )2. What is the writer’s purpose of the last paragraph?
[A] To give people hope for further studies.
[B] To praise (表扬) scientists for their great achievements.
[C] To call on people to protect the plants on earth.
[D] To encourage people to communicate with plants.
( )3. Which is the structure of the passage?
( )4. What is the best title for the passage?
[A] The secret language of plants
[B] The study on the plant warning system
[C] The plants that give warnings
[D] The reason why scientists do research on plants
六、完形填空(每小题1分,共15分)
David was a young nature lover. He enjoyed exploring the forest near his home.
One sunny morning, he decided to 1________ deeper into the forest than ever before. He packed some food and water, and told his mother he would be back 2________ sunset (日落).
3________ he walked on the small road, David saw many interesting things: colourful birds, strange insects, and beautiful flowers. These are worth (值得) a visit. He was so interested in watching a family of rabbits that he didn’t realise how far he had gone. When he finally looked up, he found himself in a(n)4.________ part of the forest.
“I’m lost,” he thought, feeling a little 5.________ The trees all looked the same, and he couldn’t remember which way he came here. He tried to stay 6________ and think what to do.
Just then, he heard a soft sound behind some bushes. He moved 7________ closer and saw a small deer with its leg stuck between two rocks. The deer looked at him with 8________ eyes.
“Don’t worry,” David said 9________. “I’ll help you.”
He carefully moved the rocks and 10________ the deer’s leg. The deer stood up slowly and looked at David for a moment before 11________ away into the forest.
David was still lost, but he felt good about helping the animal. Suddenly, he heard the deer making sounds not far away. It kept looking back at him as if 12________ him to follow.
David decided to trust the deer. He followed it for about ten minutes until they reached a 13________ road. He recognised this road! It led back to his neighbourhood.
How 14________ David felt! He not only helped the deer but also helped himself. This experience taught him that 15________ to animals is always worth it.
When David got home, he told his family this wonderful story about his adventure in the forest.
( )1. [A] go
[B] run
[C] look
[D]climb
( )2. [A] after
[B] until
[C] since
[D] by
( )3. [A] Before
[B] Though
[C] As
[D] If
( )4.[A]unusual
[B] important
[C] wonderful
[D] unknown
( )5.[A] happy
[B] proud
[C]afraid
[D] excited
( )6.[A] calm
[B] warm
[C] awake
[D] silent
( )7. [A] suddenly
[B] hurriedly
[C]quietly
[D] strongly
( )8. [A] angry
[B] tired
[C] bright
[D] scared
( )9. [A] loudly
[B] softly
[C] quickly
[D] seriously
( )10. [A] treated
[B] covered
[C]freed
[D] touched
( )11. [A] walking
[B] jumping
[C] singing
[D] dancing
( )12. [A] hating
[B]wanting
[C] teaching
[D] allowing
( )13. [A] wide
[B] narrow
[C] clean
[D] busy
( )14. [A] strange
[B] lucky
[C] nervous
[D]bored
( )15. [A] kindness
[B]sadness
[C] hope
[D] worry
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