With rising temperatures there’s concern for some freshwater fish. If the water gets too warm , then it can change their living activities .For some species in UK the river water needs to stay below 20℃. The problem is as the climate gets warmer so do the streams and rivers .The problem is particularly of concern for the smaller streams and rivers which respond to air temperature changes much more than the deeper and larger rivers .
The method to keep the temperatures of rivers down could be as simple as planting woodlands along the river course .Research has shown that trees cover lowland streams can keep water temperatures 5 ℃ lower than streams running through treeless environments .That 5 ℃ can make the difference between the water temperature being habitable for fish or being too warm for their living .
While it looks like a good method to a problem , there are things that need to be considered . We need to remember that trees are not the favorite habitat of all animals . Some of the habitats need open countryside . Trees can also bring their own problems .A nutrient poor stream has its own life . Plant trees alongside it and leaves fall in the stream. Falling leaves can change the nutritional makeup of the stream , which will affect the stream and local species of the stream . You have to be careful with this type of management, but his method does offer a real chance to help freshwater living things against climate changes and increasing temperatures.
1.It can be inferred from the text that some freshwater fish ______.
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A.have to live in the small streams and rivers |
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B.never need to change their living activities |
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C.are threatened by increasing temperature s |
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D.are becoming rare and expensive in the UK. |
2.An easy method to protect freshwater fish is to ________ .
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A.develop more different fish species |
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B.explore lots of fish protection areas |
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C.make streams run into the deeper rivers |
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D.plant trees around the streams and rivers |
3.Which of the following statements is TRUE about the method ?
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A.It brings problems if the water grows warmer |
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B.It needs little management . |
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C.It has its advantages and disadvantages |
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D.It is green but costs a great deal of money |
4.What’s the main purpose of the text ?
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A.To help people know more about freshwater fish |
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B.To introduce a method to protect freshwater fish |
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C.To explain why freshwater fish lost their habitat |
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D.To show how the weather affects freshwater fish . |
Mea and vegetables are measured in grams and kilograms . Milk and other liquid foods are measured in liters or milliliters , These units only measure quantity : they do not measure the value of the food to the body . The unit which measures the quality or value of food is the calorie, the amount of heat given off by food when it burns . This measurement tells how much energy a certain food has when it is completely used by the body .
Our bodies use varying amount of calories . The more exercise we take, the more calories we burn . If we eat food which contains more calories than we use up , then it is possible that we would increase in weight . In order to avoid becoming overweight , it is advisable to eat a balanced diet and not to eat too many foods that have a high calories rating . The table below gives you some idea of the number of calories in food .
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A. Meats |
B. Fruits |
C. Sweets and pastries |
D. Vegetable |
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Slice of bacon 50 |
Apple 70 |
Small chocolate bar 190 |
60g bean 15 |
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Hamburger 300 |
Orange 60 |
Large chocolate bar 225 |
60g carrot 18 |
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Slice of beef 100 |
Pear 80 |
Slice apple pie 300 |
60g potato 60 |
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Sausage 180 |
Banana 80 |
Doughnut 200 |
60g onion 25 |
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Meat pie 500 |
Plum 20 |
Scoop of ice cream 85 |
60g cucumber 10 |
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Sausage roll 350 |
Tomato 20 |
Bag of potato crisps 145 |
60g cabbage 15 |
1.Which is the best title of this passage ?
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A.How to measure the quality of food |
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B.Calories in foods |
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C.The units of measurement |
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D.How to keep fit |
2.How many slices of bacon equal the same number of calories as in a sausage roll ?
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A.7 |
B.6 |
C.5 |
D.8 |
3.To keep he calorie intake down , it is better to eat more ________ .
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A.chocolate |
B.meat pie |
C.fruit |
D.apple pie |
4.When do you need the most calories from your diet ?
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A.When we sleep |
B.In working in the fields |
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C.While watching a play |
D.After having sports |
According to Japanese media, about eight thousand people are dead and more than twelve thousand people are missing . More than 300-thousand people have been forced to leave their homes and more than 200 thousand are staying in public shelters.
According to Japan's nuclear safety agency up to 190 people may have been exposed to radiation from the Fukushima nuclear power plant(核电站).
According to Kyodo News Agency, more than 34-hundred buildings have been destroyed and at least 200 fires have broken out in cities across the country.
In northeastern Japan, power has been cut off in at least 5.5 million households, a million families are without water, and gas supplies have been cut off in nearly half a million homes. It is expected to be about 2 weeks before normal daily supply can be resumed.
China delivered 10 tons of bottled drinking water to Japan's earthquake-hit areas on Thursday in the country's latest round of relief donations sent to assist Japan's rescue and recovery efforts. The water, packaged in 800 boxes, was air-lifted from China's northeastern city of Changchun, Jilin Province, to Niigata in northeastern Japan on Thursday before it was taken by road to devastated Sendai, Miyagi Prefecture, said Duan Yingli, a foreign affairs official with Jilin provincial government.
Funds and other forms of aid have flowed from the Chinese government and the public after a 9.0-magnitude earthquake hit off Japan's northeast coast and triggered an array of disasters, including a massive tsunami, last Friday.
China sent a 15-member international rescue team to Japan, while the Ministry of Commerce said it is providing 30 million yuan worth of emergency humanitarian assistance.
The first relief package -- 2,000 blankets, 900 cotton tents and 200 emergency lights -- was delivered early this week.
On Wednesday, Beijing boosted aid to Japan by pledging 20,000 tons of fuel -- 10,000 tons of gasoline and 10,000 tons of diesel.
1.How many parts can be divided according to the main idea of the passage ?
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A.1 |
B.2 |
C.3 |
D.4 |
2.How many people may have died in this disaster on March 11 ?
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A.about 8000 |
B.more than 12000 |
C.about 20000 |
D.over 500,000 |
3.What kind of forms does China aid to Japan ?
A. Funds and a rescue team
B. 30million yuan , a team of scientists and many goods
C. Water , food ,package , gasoline and diesel
请根据各句上下文的意义,选择正确的单词填入空白处。
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set aside; ahead of; be aware of ; be about to ; adjust to; in particular; in other words; in the distance; do with; make a difference |
1.I saw a man in a blue jacket thirty meters ____________ me.
2.It was a few moments before his eyes _________ the bright glare of the sun.
3.I regret to say your performance didn’t’ get to the requirements, ________, you can’’t be accepted by our company..
4.______________ half an hour every day to do some English reading is a good way to improve your English study.
5.She has a preference for Chinese art, and for calligraphy and Beijing opera ________.
6.___________ how much these wild animals means to our future generation, more and more people have been quitting the bad habit of eating them.
7.I saw some smoke ________________.
8.He ___________ tell me the secret when some patted him on the shoulder.
9.It doesn’t whether he comes or not.
10.What will you your pocket money?
Students are encouraged to _________ the design competition for robots at the university.
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A.take part |
B.operate |
C.join to |
D.participate in |
After Yang Liwei succeeded in circling the earth, Chinese astronauts __________ walk in space.
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A.anxious to do |
B.eager for |
C.are dying to |
D.are longing to |