Can plants talk？Modern research has found something amazing：they do communicate with each other.
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.This is like a warning，or a call for help："I'm being attacked!"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 （黄蜂；蜜蜂）!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.
More surprisingly，plants also use sound to communicate.People can't hear these sounds，but plants are making them.Some plants make noises with their roots.Corn and chili plants do this.Some trees make clicking noises when there is not enough water.
Most surprisingly of all，plants have an amazing system of communication that can link nearly every plant in a forest.Scientists call this system the "wood wide web".The wood wide web is linked underground by fungi （霉菌）.It links the roots of different plants to each other.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 prevent 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 control 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）How are the wood wide web linked by fungi？
A.By making noises with their roots.
B.By connecting the roots of different plants to each other.
C.By sharing food and information with each other.
D.By spreading chemicals to each other.
（3）What is the writer's intention of the last paragraph？
A.To give people hope for further studies.
B.To praise scientists for their great achievements.
C.To call on people to protect the plants on Earth.
D.To inspire people to communicate with plants.
（4）What is the structure of the passage？
A.
B.
C.
D.
（5）Which is the best title for the passage？
A.The Secret Language of Plants
B.The Study about the Plant Warning System
C.The Plants that Give Warnings
D.Why Scientists Do Research about Plants
Television is good.You’d like to watch it all day and all night.But too much TV is a very bad thing.Scientists found that kids who watch too much TV may have more trouble learning to read.They can’t focus o their work.
Kids learn language skills best by reading,talking and playing with others.If they spend too much time watching TV,they’ll have less time for those things.
Watching too much TV is bad for people’s health.People don’t move much while watching TV.What’s more,they may eat a lot of food while watching.This can make them fat.We call these people“couch potatoes”.
Fighting on TV is a big problem for kids.Young people are good at following.Scientists have found that those who watch a lot of fighting programmes are more likely to fight.Scientists say if kids watch too much TV,they will_______.
| A．learn language skills more easily | B．be healthier |
| C．find it hard to learn to read | D．eat less food |
While watching TV,what DON’T people do?
| A．Eat a lot of food | B．Have less time for reading |
| C．Hardly move | D．Focus on their work |
Which of the following is true?
| A．It’s good for kids to learn from fighting programmes on TV. |
| B．Too much TV is good for people’s health. |
| C．It’s easy for kids who watch a lot of fighting programmes to love others. |
| D．Kids who watch too much TV may have more problems with reading. |
June 5 is World Environment Day.This makes us pay more attention to our environment and the need to protect it.
When Wang Baoxuan,a Beijing high school boy,finishes his exercise books,he does not throw them away.He puts them in the big box in the corner of his classroom.Other students do so.Then the exercise books are sold to a paper-factory in Beijing.The paper is collected and used again by students and teachers in the school.At the same time,the money made from selling the paper goes towards schools in Inner Mongolia for planting trees and grass.During spring time,the sandstorms often attack here.
Wang’s school is one of the schools in the capital that take part in the “green promise”environmental protection activity.So far,nearly 210,000 students have taken part in the activity,collecting more than 174 kilograms of waste paper.
“There are some environment problems in the city,such as sandstorms.We should do our duty and encourage others to do so as well.”Said Wang.
Vice-premier Zeng Peiyan has written a letter to the teachers and students to encourage them to go on taking part in the environmental protection.What do Wang Baoxuan and his schoolmates do with the waste exercise books?
| A．Throw them away |
| B．Collect and sell them |
| C．Cut them into pieces |
| D．Give them to the students in Inner Mongolia |
What is the money from selling the paper used for?
| A．Buying new exercise books | B．Helping poor students |
| C．Planting trees and grass | D．Being their pocket money |
What can we infer(推断)from the third paragraph?
| A．Many years later,students will have no exercise books to use. |
| B．Many years later,there will be no waste paper. |
| C．Many years later,the sandstorms will be weaker in Beijing. |
| D．Many years later,Beijing will be much dirtier. |
A friend of mine named Paul received an expensive car from his brother as a Christmas present. On Christmas Eve when Paul came out of his office, a street urchin(顽童)was walking around the shining car.“Is this your car, sir?”he asked.Paul answered,“Yes, my brother gave it to me for Christmas.”The boy was surprised. “You mean your brother gave it to you and it did cost you nothing? Sir, I wish…”He hesitated(犹豫),Paul thought of course he knew what the boy wanted, but what the boy said surprised him greatly.“I wish,” the boy went on,“that I could be a brother like that.”Paul looked at the boy in surprise, and then he said again,“Would you like to take a ride in my car?”“Oh yes, I’dlove to ,”the boy answered.
After a short ride, the boy turned and with his eyes shining, said,“Sir, would you mind driving in front of my house?”
Paul smiled a little. He thought he knew what the boy wanted. He wanted to show his neighbors that he could ride home in a big car. But Paul was wrong again.“Will you stop where those two steps are?”the boy asked.
He ran up to the steps. Then in a short while Paul heard him coming back, but he was not coming fast. He was carrying his little crippled(残疾的)brother. He sat down on the step and pointed to the car.
“There he is, Buddy, just like I told you upstairs. His brother gave it to him for Christmas and it didn’t cost him a cent. And some day I’m going to give you one just like it…then you can see for yourself all the nice things in the Christmas windows that I’ve been trying to tell you about”
Paul got out and lifted the boy to the front seat of his car. The shining-eyed elder brother climbed in beside him and the three began an unforgettable holiday ride.The street urchin was very surprised when_______.
| A．he met paul | B．Paul told him about the car |
| C．Paul received an expensive car | D．he was walking around the car |
From the story we can see the urchin________.
| A．wished to give his brother a car |
| B．wanted Paul’s brother to give him a car |
| C．wished he could have a brother like Paul’s |
| D．wished Paul could be a brother like that |
The urchin asked Paul to stop his car in front of his house_______.
| A．to show he had a rich friend |
| B．to show his neighbors the big car |
| C．to let his brother ride in the car |
| D．to tell his brother about his wish |
We can find from the story that_______.
| A．the urchin wished Paul to give his car to Buddy |
| B．the urchin wished to have a rich brother |
| C．the urchin had a deep love for his brother |
| D．the urchin’s wish came true in the end |
| Trip 1 One Week in The mountains Bring your strong shoes and warm clothes for this walk in a beautiful area of the Green Mountains. You may go hiking or have a try of rock climbing.This is also a protection area for wild animals.You can find many kinds of animals living in this area. Time:May 8th～May 14th Tel:64639818 Adult(成年人)：＄110.00 Child: ＄ 55.00 |
| Trip 2 Three Days in the country There are many beautiful gardens.Take your camera and enjoy the wonderful sight in Hunter Valley.It is a good place for fishing and horse riding.You can also find different kinds of flowers here.This is also a great walk for bird—lovers. Time:May 20th—May 22th Tel:63986432 Adult: ＄50:00 Child: ＄25.00 |
| Trip3 Flashlight Adventure Put on your warm clothes,bring a flashlight(手电筒)and come for a night walk along the Dungog Valley.It is a trip full of adventure(冒险).A guide will lead the tour.Many of the plants you will see on this trip can only be seen at night. Time:May 16th—May 18th Tel:63875629 Adult: ＄30.00 Not for children |
| Trip 4 Five Days By The Sea Wear your sun hat and enjoy wonderful sunshine all the time from morning to evening.Our hotel is next to the sea.We have our own boats too.You can swim in the sea or in the swimming pool.Every day our boat will take you to different places for swimming. Time:May 23th—May 27th Tel:67538293 Adult: ＄80.00 Child: ＄40.00 |
What number may you call if you and your friends want to enjoy the sunshine at the seaside?
| A．67538293 | B．63986432 | C．64639818 | D．63875629 |
Sam wants to stay in Hunter Valley with his wife,his five-year-old daughter and his seven—year-old son.How much will it cost?
| A．＄25 | B．＄50 | C．＄100 | D．＄150 |
David loves sports.He will take his holiday from May 7 to May 15.What activity will he probably take part in?
| A．Hiking in the mountains | B．Fishing in the country. |
| C．Watching plants at night | D．Swimming in the sea. |
Lucy is a college student.She is quite interested in science.She wants to know something about the life of plants at night.Which trip will she choose?
| A．Trip 1 | B．Trip 2 | C．Trip 3 | D．Trip 4 |
Which of the following is NOT mentioned according to the four advertisements?
| Sydney Tower Address: 100 Market St., Sydney Phone: 02 9333 9222 Fax: 02 9333 9203 Open time: 9:00 a.m. to 10:30 p.m. (Saturdays to 11:30 p.m.) Ticket: $60 (for an adult) $30 (for a child) Website: www.sydneytower.com.au How to get there: train to Town Hall Station and a short walk along Market Street How to book tickets: by phone/fax or through the web Attraction: Sydney’s best views are just the beginning! Sydney Tower takes you to the highest point above Sydney for exciting 360 views of our beautiful city. |
Sydney Tower is ________ in Sydney, Australia.
| A．the busiest street | B．the biggest station |
| C．the most beautiful park | D．the highest point |
If you want to book a ticket to Sydney Tower, you can’t ________.
| A．email sydneytower@hotmail .com |
| B．fax 02 9333 9203 |
| C．search www. sydneytower.com.au |
| D．dial 02 9333 9222 |
Frank wants to go to Sydney Tower with his two children, he will pay _________.
| A．$60 | B．$90 | C．$120 | D．$150 |
Last Saturday, Johnson went to visit Sydney Tower. He had to get down the tower __________.
| A．after 11:30 p.m. | B．before 11:30 p.m. |
| C．at 10:30 p.m. | D．by 10:30 p.m. |
The passage above is probably___________.
| A．a piece of news | B．a conversation |
| C．a story | D．an advertisement |