About an hour after sunrise, I rode across the countryside——birds were singing.
A. where B.which
C. that D. when
高三英语单项填空中等难度题
About an hour after sunrise, I rode across the countryside——birds were singing.
A. where B.which
C. that D. when
高三英语单项填空中等难度题查看答案及解析
About an hour after sunrise，I rode across the countryside____birds were singing．
A． where B． which C． that D． when
高三英语单项填空中等难度题查看答案及解析
The bus came after I _____ for about half an hour.
| A．had been waiting | B．have been waiting |
| C．have waited | D．was waiting |
高三英语单项填空简单题查看答案及解析
One Saturday, Bob decided to take a drive through the countryside. After a few hours, he saw a dog ___1.____ （walk） behind a man on the side of the road. As the car came near them, the dog ___2.____ （sudden） jumped into the road. Of course, the car hit the poor animal and killed it.
Bob stopped his car and walked up to the man. “I’m very sorry that this happened,” he said. “Is there ___3.___ （something） I can do? Will $10 help?”
“Oh, but…”said the man. “I should tell you…”
“Stop! You are right. $10 isn’t enough! That dog was your ____4.____ （good） friend!”
Bob reached into his pocket and gave the man $30．Then he thanked the man and drove away. When he was _____5._（go）, the man looked down at the dog and said : “I wonder whose dog that is?”
高三英语语法填空中等难度题查看答案及解析
After talking with her teacher for about an hour, she felt relieved and began to know how to this kind of situation.
A. handle B. raise C. explore D. strengthen
高三英语单项填空中等难度题查看答案及解析
After talking with his father for about half an hour, he felt better and began to know how to ____ this kind of situation.
A．strengthen B．explore C．handle D．arrange
高三英语单项填空中等难度题查看答案及解析
After about one hour of the play between China and Korea, the ______ was 3-2 in our ______.
A. score; favour B. score; side C. point; favour D. point; side
高三英语单项填空中等难度题查看答案及解析
After about one hour of the play between China and Korea, the ______ was 3-2 in our ______.
A. score; favour B. score; side C. point; favour D. point; side
高三英语单项填空中等难度题查看答案及解析
Sunrise Hike
Saturday, October 21, 6:45 AM — 7:45 AM
Enjoy sunrise from the hilltop as you learn about wildlife, plants, history and forest. Ages 8 and up; under 18 with an adult. To register by phone instead, call 630-933-7248.
Meet in the parking lot on the west side of Greene Road south of 79th Street. Dress for the weather, wear comfortable shoes and bring water.
Trick Or Treat
Saturday, October 28, 9:00 AM — 11:30 AM
You and your family are invited to join the YMCA for a Halloween hike up Badger Mountain! Make sure to wear your Halloween costumes!
Free shirts for the first 200 kids registered.
*You must take away your shirt by 11:30AM or it will be given away.
Cost: Trick or Treat is a Free Event.
Discovery Hike: In Search of the Great Pumpkin
Thursday, October 26, 1:00 PM — 4:00PM; Ages 3-8
Fall is pumpkin time. Listen to a pumpkin story and learn how pumpkins grow. Then we will head out on the path in search of a little pumpkin just for you and maybe, just maybe, we will find the great pumpkin along the way. $7 per child.
Harvest Day Camp CAP
Monday, October 31, 8:00 AM — 5:00 PM
Harvest Camp is an opportunity for children aged 5-13 to find the wonder of autumn at Keystone Science School and enjoy all the fun the Halloween season offers. We’ll explore the ways our natural environment has changed from summer to fall. As always, our programming is focused on building skills, knowledge, and confidence. Day Camp $0.00
1.What can we know about these activities?
A.Only children can take part. B.They are held in a mountain.
C.They are held in the same season. D.They are to celebrate Halloween.
2.In which activity can children get free shirts?
A.Sunrise Hike. B.Trick Or Treat.
C.Harvest Day Camp CAP. D.Discovery Hike.
3.What can children do on October 26?
A.Hike with their parents. B.Protect wildlife and forest.
C.Enjoy the fun of Halloween. D.Learn the growth about pumpkin.
高三英语阅读理解简单题查看答案及解析
C
When an ant dies, other ants take it out of the nest, often within an hour after its death. This behavior interests scientists and they wonder how ants know for sure--and so soon--that another ant is dead.
One scientist recently came up with a way to explain this ant behavior. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I’m dead--take me away” when it is dead.
One scientist recently came up with a way to explain this ant behavior. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I’m dead---take me away” when it is dead.
But there's a question to answer: As we know, if an ant is dead, it stops moving. But when an ant is sleeping or knocked unconscious, it is also not moving. However, other ants don't move the living ant out of the nest. How do they know this ant is not dead? Choe found that ants have another chemical on their bodies, which tells nearby ants something like, “Wait—I'm not dead yet” when it is not dead. Choe suspects that when an ant dies, the chemical that says, “Wait— I'm not dead yet” quickly goes away. When other ants detect the “dead” chemical without the “not dead yet” chemical, they move away the body.
To test his theory, Choe and his team put different chemicals on ants. When the scientists used the “I'm dead” chemical, other ants quickly moved the treated ant away. When the scientists used the “Wait—I'm not dead yet” chemical, other ants left the treated ant alone. Choe believes this behavior shows that the “not dead yet” chemical overrides the “dead” chemical when picked up by other ants. And that when an ant dies, the “not dead yet” chemical fades away. Other nearby ants then detect the remaining “dead” chemical and remove the body from the nest.
Understanding this behavior can help scientists figure out how to stop ants from invading new places and causing problems.
1.What is the function of the first paragraph?
A. Leading the following paragraphs.
B. Showing the main idea of the passage.
C. Introducing the background of the passage.
D. Giving a summary of the passage.
2.Which of the following has the closest meaning to the underlined word “overrides” in the fourth paragraph?
A. is weaker than B. is stronger than C. is better than D. is worse than
3.What can we learn from the passage?
A. Living ants can also be taken away when they are not moving.
B. When an ant dies, it can tell others using a certain chemical.
C. A living ant can pretend to be dead using a special chemical.
D. Ants often use chemicals to communicate with each other.
4.Which of the following descriptions about Dong-Hwan Choe is right?
A. Choe did this study in order to stop ants from invading new places.
B. Choe is a biologist who is only interested in animals, especially in ants.
C. Choe first came up with an idea to explain this ant behavior，and then did some tests to prove his theory.
D. Choe did the research on this ant behavior on his own.
高三英语阅读理解中等难度题查看答案及解析