If you buy ten bottles, the price of each bot...

If you buy ten bottles, the price of each bottle will come down to 5 yuan.

A. show                             B. fall                                C. rest                               D. lie

九年级英语单项填空中等难度题查看答案及解析

— Four dollars a pair? I think it’s a bit too much.

— If you buy three pairs, the price for each will _______ to three fifty.

A．come down        B．take down       C．turn down         D．break down

九年级英语单项填空中等难度题查看答案及解析

From the table， we can see the prices of the books. You should pay　　 ______if you buy each book of them.

A. ￥180　　　　　　　　　 B. ￥110　　　　　　　　 C.￥120

九年级英语单项填空中等难度题查看答案及解析

—The milk tastes nice. I’d like ______ bottle of milk.

—Sorry. There is none left. But you can buy one on ______ side of the street.

A. another; other　　　　　　　　 　　　 B. other; the other

C. another; the other　　　　　　　　　　 D. the other; another

九年级英语单项填空中等难度题查看答案及解析

If you have a bottle of water recycled(再利用) from urine(尿), would you drink it? Astronauts at the ISS may soon do so.

NASA(美国航空航天局) said it would use a high-tech machine to recycle wastewater at the ISS. The machine will recycle water for washing hands, shower water, water for brushing teeth and even urine to make drinking water. It will save millions of dollars each year.

At present, each ISS astronaut uses about 4.4 liters(升) of water every day. It costs about 24 million dollars a year to send water up to the ISS. A liter of water costs about $ 11,000.

The machine will be sent to the ISS later. NASA hopes it will recycle about 93% of all the water used on the station.

Will the water be clean? Different chemicals will be put in the wastewater. The water will be heated to 130℃ to kill bacteria(细菌). Scientists say that the recycled water is thousands of times better than the water from a city tap.

1.NASA will use a high-tech machine to recycle wastewater at the ISS to ______.

A．protect the ISS

B．make the astronauts work harder

C．provide better water and food for the astronauts

D．save the cost of sending water up to the ISS

2.At present it costs NASA about ______ dollars to transport water up to an astronaut at the ISS a day.

A．4.4 thousand                           B．11 thousand

C．48.4 thousand                          D．24 million

3.Scientists plan to get rid of bacteria in the wastewater by ______.

A．freezing                              B．heating

C．shaking                               D．precipitating(沉淀)

4.The passage mainly tells us something about ______.

A．water recycling at the ISS

B．the International Space Station

C．a high-tech machine

D．the cost of NASA

5.Which of the following sentences is TURE?

A．The recycled water is much better than that from a city tap.

B．The high-tech machine will recycle all the water used on the station.

C．The ISS astronauts use more water than us.

D．The high-tech machine can only recycle urine to make water.

九年级英语阅读理解中等难度题查看答案及解析

Give water, save lives

A bottle of water may not seem like much to you, but thousands of bottles will be of great help for people who live in drought-hit(遭受旱灾) areas in China.

Since last autumn, there has been very little rain in Southwest China. Some places, especially in Yunnan . Guangxi, Sichuan, Guizhou, have experienced a serious drought. Crops (庄稼) died, the land cracked, and wells (井) and rivers dried up. More than 20 million people are having difficulty in finding safe drinking water.

After learning about the drought, many people around the country helped by giving water, money and other things.

Last week, every member of the Communist Youth League (共青团员) and Young Pioneers(少先队员) were encouraged to give one bottle of water to the drought-hit areas. Students in primary schools and middle schools quickly joined the activity. In Yuhua Primary School in Xi' an, 900 students bought over 1,000 bottles of water with their pocket money. They also wrote their wishes on the bottles.

The serious drought has also made students realize the importance of saving water.

Students from Nanshan Middle School in Huizhou in Guangdong went on the street to tell people to take part in water-saving activities.

“I've heard that some children in drought-hit areas don' t have enough drinking water. They have to drink muddy ( 含有泥土的 ) water. I feel really sad about that," said one student. “I decide to take a shower twice a week instead of every day to save water.”he said.

1.Why did a serious drought happen in Southwest China?

___________________________________________________________________________                      2.What does the underlined (划线的) word "cracked" probably mean in Chinese?

______________________________________________                   !

3.What did people do after learning about the drought?

________

4.Is a bottle of water helpful for the people in drought-hit areas?

5.What can you learn from the passage?________

九年级英语其他题困难题查看答案及解析

Look at the table .Han Fang wants to buy two pieces of bread ,a bottle of orange juice and an ice cream .How much will she pay?

A. Five yuan and eighteen fen

B. Six yuan and twenty fen

C. Seven yuan and twenty fen

D. Eight yuan and twelve fen

九年级英语单项填空中等难度题查看答案及解析

If you knew a bottle of water had been recycled from urine (尿), would you drink it? Astronauts at the International Space Station (ISS) may soon do so. The USNASA (美国宇航局) said it would use a high-tech machine to recycle wastewater at the ISS. The machine will recycle everything from sweat, the water for washing hands and brushing teeth, shower water and even urine, to make drinking water.

It will save NASA millions of dollars each year. The machine will be sent to the ISS in October2022. NASA expects it will recycle about 93% of all water used on the station. Will the water be clean? Scientists say it will be very difficult to make the wastewater clean. But the recycled water is thousands of times better than the water from a city tap, scientists say.

根据短文内容，判断下列句子正(A)误(B)。

1.Astronauts could drink the recycled water from urine last year.

2.The machine used for recycling wastewater will save a lot of money each year.

3.It will be easy to make the wastewater clean at the ISS.

4.The wastewater will not be used after being recycled.

5.Scientists say that the recycled water is as clean as the water from a city tap.

九年级英语阅读判断简单题查看答案及解析

If you knew a bottle of water had been recycled from urine (尿), would you drink it? Astronauts at the International Space Station (ISS) may soon do so.　 NASA (美国航空航天局) said it would use a high-tech machine (高科技机器) to recycle wastewater at the ISS. The machine will recycle everything from sweat (汗), the water for washing hands, shower water, water used for brushing teeth, and even urine, to make drinking water.

It will save NASA millions of dollars each year. At present, each ISS astronaut uses about 4.4 liters (升) of water every day. It costs about $24 million a year to transport water up to ISS. NASA says that a liter of water costs about $11,000.

The machine will be sent to the ISS in October 2008. NASA hopes it will recycle about 93% of all water used on the station.　 Will the water be clean? Scientists say the wastewater will go through a very complicated process (复杂的过程). For example, different chemicals will be put in the wastewater; the water will be heated to 130℃to get rid of bacteria (细菌). The recycled water is thousands of times better than the water from a city tap, scientists say.

1.NASA will use a high-tech machine to recycle wastewater at the ISS to __________.

A. protect the ISS

B. make astronauts at ISS work harder

C. provide better water and food for ISS astronauts

D. save the cost of transporting water up to the ISS

2.At present it costs NASA about ______ dollars to transport water up to an astronaut at the ISS a day.

A. 4.4 thousand     B. 11 thousand　　

C. 48.4 thousand　     D. 24 million

3.Scientists plan to get rid of bacteria in the wastewater by ______.

A. freezing　　     B. heating　　　　　

C. shaking　　　　     D. precipitating (沉淀)

4.The reading mainly tells us something about ______.

A. water recycling　                 B. the International Space Station

C. a high-tech machine　　　　　　         D. the cost of NASA

5. Which of the following sentences is true, according to the passage?

A. The recycled water is much better than that from a city tap.

B. The high-tech machine will recycle all the water used on the station.　

C. At present, each ISS astronaut uses more water than the people living on the earth.

D. The high-tech machine can only recycle urine to make water at present

九年级英语阅读理解中等难度题查看答案及解析

If you shop online on Double Eleventh Day, you may buy what you like at the ____________ price of a year.

A. cheap　　 B. low　　 C. cheapest　　 D. lowest

九年级英语单项填空困难题查看答案及解析