You’d better leave the windows _________ and ...

You’d better leave the windows _________ and the door ___________.

A．open, closed           B．opened, closing

C．opened, close           D．open, close

高二英语单项填空简单题查看答案及解析

______ leaves the room last ought to make sure that the windows are closed and the door locked.

A．Whoever         B．Who             C．Who will          D．Those who

高二英语单项填空简单题查看答案及解析

_____leaves the office last must close all the windows and the door.

高二英语单项填空简单题查看答案及解析

It is my ______to check that all doors and windows are locked after everybody leaves .

A. doubt　　 B. poster

C. responsibility　　 D. evidence

高二英语单项填空中等难度题查看答案及解析

The door and the windows were all closed and there was no _______ of forced entry.

A. sigh　　 B. signal

C. sign　　 D. sight

高二英语单项填空简单题查看答案及解析

The door and the windows were all closed and there was no ______ of forced entry.

高二英语单项填空简单题查看答案及解析

When he got home, he found the door _____, the window ______, the money and the necklace in the drawer _____.

A. shut; opened; stolen                 B. shut; open; stolen

C. shut; open; steal                    D. shuted; open; stolen

高二英语单项填空中等难度题查看答案及解析

Vinegar makes salad，fries and dumplings taste better， and you can even use it to clean your windows． And now， according to scientists， it may even the planet's population survive climate change．

Researchers from the RIKEN Center for Sustainable Resource Science （CSRS） in Japan found that growing plants in vinegar makes them more resistant to droughts． This could mean that in the future， worries about climate change affecting the world's supply of food will be much lower． The discovery was made after the researchers studied the Arabidopsis， a plant known for its ability to survive in dry weather． It was found that when the plant was placed in drought﹣like conditions， it produced a chemical called acetate（醋酸盐）﹣the main component of vinegar．

After discovering this， the scientists experimented further by adding acetate to the soil of other plants， before they stopped giving them water completely． After leaving the plants for 14days， they found that the ones treated with acetate had survived， while the untreated plants had dried up and died．

It's hoped that this simple method of survival could soon be used to help farmers in dry countries keep their crops alive． "In the experiment， we targeted the staple foods of the world﹣rice， wheat and maize﹣and the basic plant of breeding species， rapeseed（油菜籽），" Jong Myong Kim， co﹣author of the study， told Popular Science magazine．

Kim also told the magazine he's already been in touch with people all over the world who are interested in trying this simple and cost﹣effective method out for themselves from flower growing companies to amateur gardeners． Although at this point keeping thirsty plants alive isn't as easy as just pouring vinegar over them， Kim said he and his team are working on making the process as simple as possible． "Now we are trying to cooperate with some farmers， and also some companies， to make a method to apply this system， "he said． And for those of us who always forget to ask our neighbors to water our plants when we goaway， hopefully this means the end of returning home from a trip to find our favorite flowers have died．

1.What is the article mainly about？

A. The world's food supply will be increased．

B. Plants better survive droughts．

C. The Arabidopsis is resistant to droughts．

D. Vinegar could be used to fight droughts．

2.It was discovered that acetate can　　　 　．

A. be used by farmers to replace soil

B. only be produced by the Arabidopsis

C. help plants survive dry conditions

D. be used to improve poor soil

3.What are the target plants of the experiment？

A. all breeding species．

B. wheat and Arabidopisis．

C. rice and maize．

D. rapeseed and Arabidopisis．

4.Jong Myong Kim's experiment of trying out the method　　　 　．

A. can make people's trips pleasant

B. turned out a worldwide success

C. is as simple as pouring vinegar over the plants

D. appeals to many flower growing companies

高二英语阅读理解困难题查看答案及解析

The desire for a better life is sometimes so big that it makes people leave their countries and their families and work in other countries. They know that they will have to face difficult moments, that they won't be able to communicate with the persons around them, and that they have to work in illegal conditions to get the money they need for their families, but they all take these chances and they hope they will succeed.

On the other hand, there are people who immigrate (移民) just for the sake of the people they love. They leave their families to make other families with the people they love. Women go to meet their men who have chosen other countries to start a new life, even if they miss their families and friends. Maybe they don't have a place to work but they are able to wait to see what destiny (命运) has for them.

There are also the cases of the people who are forced to leave their countries because of a war which threatens their lives. They'd rather start from the very beginning again than risk putting their lives in danger.

When well-developed countries see that their homeland is being "invaded" by lots of immigrants, they set new laws that make immigration harder. As a result of this, many illegal immigrants cross the borders and are eager to work, although they are paid only half the amount of money native workers receive for the same kind of job.

The opinions of the local people are varied and they range from total refusal to complete acceptance. Immigrants in countries which have large communities of them are fighting for the recognition of their social rights and for equal treatment. Many immigrants have managed to be fully accepted by the communities where they live and have managed to change the opinions of the local people about them.

1.Which of the following reasons for immigration is NOT mentioned in the passage?

A. Escaping from a war.

B. Being reunited with the beloved people.

C. Seeking a better life

D. Studying a foreign language

2.What's the usual response to immigrants in well-developed countries?

A. To accept them.

B. To refuse them.

C. To put limitations on immigration.

D. To encourage them.

3.Which of the following statements is NOT true according to the passage?

A. Some immigrants are still fighting for their rights now.

B. Immigrants are never accepted no matter how hard they try.

C. Native people usually earn more money than illegal immigrants.

D. The local people have different attitudes toward immigrants.

4.The passage implies that _____.

A. many people go to other countries with great determination

B. illegal immigrants cause great damage to developed countries

C. stricter laws should be set to prevent immigration

D. culture shock causes great anxiety in some immigrants

高二英语阅读理解中等难度题查看答案及解析

I usually do the washing up and leave the cooking to my wife, ________ she’s a better cook than me．

A. unless　　　　　　　　 B. as

C. even though　　 　　 D. in case

高二英语单项填空中等难度题查看答案及解析