All plants need air_____ they need water. A．l...

All plants need air_____ they need water.

高三英语单项填空简单题查看答案及解析

If humans ever settle on Mars, they will need water. There is just one problem---there seems to be only huge sheets of ice. Luckily, we know how to drill(钻孔） ice for water. Such methods are already used in Antarctica, and researchers now think they could get them to work on the Red Planet, too. The atmosphere of Mars is too dry to make extracting water vapour from it possible. So ice seems the best bet. But the obvious ice sheets are in the unlivable polar ice caps and would be difficult to reach for drilling.

However, in 2018, at the edge of the cliffs, NASA's Mars Reconnaissance Orbiter spotted relatively accessible water ice that is probably at least 130metres thick and covered in just a few metres of rock and dust. These may be the best place to get the water needed for future exploration of the planet.

The drilling techniques needed have already been developed for cold areas on Earth where we need to melt buried ice for water. In the early 1960s the US Army used a type of subsurface reservoir(水库)called Rod Well, in army camps in Greenland. The method works by drilling through the ground into the ice, melting the ice to create a pool, and then pumping water up. By supplying heat continuously, they create a reservoir and a steady water　　　　　　　　 supply. It has been used in remote areas such as the Amundsen-Scott South Pole Station Stephen Hoffman at the Aerospace Corporation in Texas and his colleagues simulated(模拟)how a Rod Well would do on Mars. They found that with the power of 9 kilowatts (千瓦)to melt ice, it could in theory produce about 380 litres of water each day and maintain a reservoir of constant size at the bottom of a borehole(钻孔). That is close to the average daily water use each person in the US, but about 10 times what each astronaut on the International Space Station uses daily.

1.Which of the following can replace the underlined word "extracting" in the first paragraph ?

A.obtaining B.protecting

C.Preventing D.choosing

2.Why does the author mention the Rod Well in Paragraph 3?

A.To explain how water ice is drilled on Mars.

B.To tell about the history of water ice drilling techniques.

C.To prove the importance of water ice drilling techniques

D.To show techniques for drilling water wells in Martian ice exist.

3.On average, how much water does an astronaut on the International Space Station use daily?

A.10 litres B.38 litres

C.160 litres D.380 litres

4.What would be the best title for the text?

A.Preparing to settle on the Red Planet one day.

B.Finding water on the Red Planet for survival.

C.Using some ways to create a livable environment on Mars.

D.Drilling water wells in Martian ice to survive on Mars.

高三英语阅读理解中等难度题查看答案及解析

Planting trees around poultry farms can improve air and water quality -- and relations with neighbors. Research has shown that just three rows of trees near poultry houses can reduce the release of dust and ammonia(氨). They can also reduce the strong smell of ammonia gas.

The trees take dust, ammonia and odors in their leaves. They also provide shade from the sun, so they reduce cooling costs in summer. And they act as a windbreak, so they reduce heating costs in winter. Trees can also improve water quality around farms by removing pollutions from soil and groundwater.

Several years ago, people were objecting to the odor of poultry farms on the Delmarva Peninsula in the eastern United State s. Delmarva is where the states of Delaware, Maryland and Virginia come together. Two thousand farms there can each house an average of seventy-five thousand chickens.

Traditionally the farms used windows to provide fresh air in the chicken houses. Farmers rarely planted trees or tall crops around the buildings, so there would be no barrier to the airflow. But then farms began to use new ventilation systems. Instead of windows, the new systems used tunnel fans to circulate air. The fans directed airflow from the poultry houses toward the homes of neighbors.

Researchers began dealing with the problem in two thousand. They found that over a period of six years, planting three rows of trees reduced total dust and ammonia by more than half. And they found that smells were reduced by eighteen percent.

Farmers may think trees will take too long to grow and be effective. But some trees can grow quickly. At least one-third of the Delmarva farms have planted trees, technically known as vegetative environmental buffers. The idea offers a way to cut pollution, save money and energy, and make the neighbors happy.

1.The second paragraph mainly tells us ______.

2.The word “odor” in paragraph 3 means ______.

3.The farms on the Delmarva Peninsula used to use ______ in chicken houses to provide fresh air.

4.It can be learned from the last two paragraphs that ______.

高三英语阅读理解中等难度题查看答案及解析

I hate to say this but you need to stop doing things like this because they __________ me all the time.

A.disturb B.have disturbed C.disturbed D.are disturbing

高三英语单项填空中等难度题查看答案及解析

Men will ________ all the natural resources if they continue consuming them like that.

A. run out          B. wipe out        C. drop out             D. hold out

高三英语单项填空中等难度题查看答案及解析

After he won all the money they treated him ______a king.

高三英语单项填空中等难度题查看答案及解析

---Fish need water to survive; _____ , we human beings rely on air to live.

高三英语单项填空中等难度题查看答案及解析

A passenger told an air hostess that he needed a cup of water to take his medicine when the plane just took off．She told him that she would bring him the water in ten minutes．

Thirty minutes later, when the passenger's ring for service sounded, the air hostess flew in a flurry．She was kept so busy that she forgot to deliver him the water．As a result, the passenger was held up to take his medicine．She hurried over to him with a cup of water, but he refused it．

In the following hours on the flight, each time the stewardess passed by the passenger she would ask him with a smile whether he needed help or not. But the passenger never paid any attention to her.

When he was going to get off the plane, the passenger asked the air hostess to hand him the passengers’ booklet (意见簿). She was very sad. She knew that he would write down sharp words, which might result in the loss of her job. But with a smile she handed it to him.

Off the plane, she opened the booklet, and cracked a smile, for the passenger put it, “On the flight, you asked me whether I need help or not for twelve times in all. How can I refuse your sincere smiles?”

That’s right! Who can refuse your twelve sincere smiles from a person?

1.What does the underlined sentence in Paragraph 2 mean?

A．The air hostess forgot the passenger’s need on purpose.

B．The air hostess suddenly realized that trouble was coming.

C．The passenger wasn’t angry at being ignored.

D．The passenger was refused to be served.

2.According to the passage, which of the following is TRUE?

A．The passenger refused to take his medicine.

B．The passenger set down his anger in the booklet.

C．The words in the booklet would never affect the air hostess.

D．The hostess finally moved the passenger with her smile.

3.What kind of person do you think the passenger is?

A．Forgiving.                B．Curious.                   C．Sharp.                       D．Enthusiastic.

4.As a result, the air hostess would ________.

A．get fired by her company                              B．be hired by the passenger

C．keep her job                                                      D．get a promotion

高三英语阅读理解简单题查看答案及解析

Algae(水藻) are very simple plants． They grow in fresh water or salty water． Seaweed is algae that grow in salty water． Seaweed is red or brown in color． The Japanese people use these plants from the sea in many ways． From it, they make a food called Kombu． Kombu is seaweed that has been dried, cooked and pressed together． Then it is dried again and cut into long pieces． The Japanese eat a lot of Kombu and like it very much．

Japanese farmers often use seaweed as fertilizer． It makes their plants grow better． Many farmers also find seaweed makes a fine food for their animals．

From seaweed the Japanese also get iodine(碘), which they sell to other countries． Iodine is used in many ways all over the worlD． It is used in making medicine． It is added to the salt we use at the table． Scientists even use one form of iodine to “ seed clouds” when they want rain to fall．

1.Kombu is a kind of ____ according to the text．

A． plant

B． medicine

C． food

D． fertilizer

2.In the last sentence of the text, “seed clouds” means ____．

A． clouds spreading like seeds

B． the seeds like clouds

C． to make rain fall with human power

D． dropping seeds by clouds

3.The main idea of the story is that ____．

A． The Japanese eat seaweed when they want rain to fall．

B． Kombu is made into medicine for farmers．

C． The Japanese use seaweed in many ways．

D． The Japanese eat a lot of Kombu．

高三英语阅读理解中等难度题查看答案及解析

阅读下面的短文，然后按照要求写一篇150词左右的英语短文

A passenger told an air hostess that he needed a cup of water to take his medicine when the plane just took off．She told him that she would bring him the water within ten minutes．

Thirty minutes passed．But the air hostess was so busy in the aircraft cabin(客舱) that she forgot to bring him the water! As a result，the passenger couldn’t take his medicine．When the air hostess hurried to him with a cup of water, he was angry and refused her offer.

In the following hours on the flight，each time the air hostess passed by the passenger she would ask him with a smile whether he needed help or not．But the passenger never paid attention to her．

When the passenger was going to get off the plane，he said to the air hostess with a smile，“On the flight，you offer service to me for twelve times in a11．Although l didn’t accept them, how can I refuse your twelve sincere(真诚的)smiles?”

[写作内容]

1．概括短文的内容要点，该部分的词数大约30左右；

2．以“真诚的回报”为主题发表自己的看法，至少包含以下的内容要点，该部分的词数大约

120左右：

(1)如果你是那位旅客，你是否也会被这位空姐的做法感动?为什么?

(2)你是否也有遇到过类似的情况，描述一下当时的情形；

(3)你觉得真诚能够使我们得到回报吗?

[写作要求]

你可以使用实例或其他论述方法支持你的论点，也可以参照阅读材料的内容，但不要抄袭阅读材料中的句子。

高三英语书面表达中等难度题查看答案及解析