— Why does the lake smell terrible?
— Because large quantities of water ____.
A．have polluted B．is being polluted
C．has been polluted D．have been polluted
高一英语单项填空中等难度题
. — Why does the Lake smell terrible?
—Because large quantities of water______.
A. has polluted B. have been polluted
C. has been polluted D. is being polluted
高一英语单项填空简单题查看答案及解析
— Why does the lake smell terrible?
— Because large quantities of water ____.
A．have polluted B．is being polluted
C．has been polluted D．have been polluted
高一英语单项填空中等难度题查看答案及解析
--Why does the lake smell terrible?
--Because large quantities of water _______.
A. have polluted B. is being polluted
C. has been polluted D. have been polluted
高一英语单项填空中等难度题查看答案及解析
---- Why does the river smell terrible?
---- Because large quantities of water______．
A. have been polluted B. has polluted C. has been polluted D. have polluted
高一英语单项填空中等难度题查看答案及解析
--Why does the lake smell terrible?
-- Because a large amount of water_______.
A. have polluted B. is being polluted
C. has been polluted D. have been polluted
高一英语单项填空简单题查看答案及解析
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Why Does Rain Smell So Good?
Do you love the smell of rain? If so, you’re not alone.
1.(actual), some scientists believe that people got their love for the smell of rain from 2.(ancestor), who relied on wet weather for their survival.
But what makes rain smell so nice? There are several smells associated with rainfall that people find pleasing.
One of these smells 3.(call) “petrichor（尘土的味道）.” Petrichor, a term created in 1964 by two Australian scientists studying the smells of 4.(rain) weather, comes from some chemical reactions.
During dry periods some plants produce oils, and when it rains, these oils go into the air. Another reaction occurs when chemicals 5.(produce) by some bacteria are sent out. All of these chemicals combine to create the pleasant pertichor smell when rain hits 6. ground.
Another smell associated with rain is ozone（臭氧）. During a thunderstorm, lightning can split oxygen and another gad and 7.(it) in turn can combine into a new substance. This substance reacts with other chemicals to form ozone, 8. has a sharp smell.
When someone says he can smell rain coming, it may be that wind from an 9.(approach) storm has carried ozone down from the clouds and 10. the man’s nose.
高一英语语法填空中等难度题查看答案及解析
听下面一段较长对话，回答以下小题。
1.Why does the woman plan to wear a mask tomorrow?
A.Because of the smog. B.Because of her illness. C.Because of the cold weather.
2.What’s a big problem in the city?
A.The heavy traffic. B.The air pollution. C.The large population.
3.What do the speakers decide to do?
A.Change their ways to go to work. B.Ask the government to do something.
C.Call on people to protect the environment.
4.What can we know about the man?
A.He always uses the public transport. B.He seldom listens to the weather report.
C.He is waiting for the weather to improve soon.
高一英语长对话中等难度题查看答案及解析
听下面一段较长对话，回答以下小题。
1.Why does the man thank the woman?
A. Because she has helped him a lot.
B. Because she has invited him for coffee.
C. Because she has agreed to see him on Monday.
2.When does the conversation take place?
A. Before class. B. After class. C. After work.
3.What’s the relationship between the speakers?
A. Classmates. B. Teacher and student. C. Relatives.
高一英语长对话简单题查看答案及解析
听下面一段较长对话，回答以下小题。
1.Why does the man go to see the doctor?
A. Because he is seriously ill.
B. Because he wants to see death.
C. Because the doctor wants his money.
2.What does the doctor advise the man to do?
A. Take more medicine.
B. Have a holiday.
C. Give some of his money to poor people.
3.How do you find the man?
A. He is honest.
B. He is careless about his health.
C. He cares for his money beyond everything else.
高一英语长对话简单题查看答案及解析
听下面一段较长对话，回答以下小题。
1.Why does the woman want to introduce Carol to the man?
A.Because they are both single
B.Because she thinks the man is great
C.Because they have something in common
2.Who is Bob?
A.Carol’s friend
B.The man’s friend
C.The woman’s teacher
高一英语长对话中等难度题查看答案及解析