On the surface, the Hudson River is looking good．The sun on a spring morning shines on the water, off bridges and boats．The blue crabs are big, and the striped bass （條紋鱸） are bigger．On the surface, all these would probably make you think the Hudson was about as healthy as it has been since Indian times．

Sadly, it isn’t．A study by the environmental group Riverkeeper examined an important indicator of life of any river－fish－and found discouraging news．Ten of 13 species it examined are reducing, and one－the great and delicious shad （西鯡）－is at a historic low．

The report blames the usual suspects （嫌疑物） and a few new ones．The river is getting warmer, and the heat helps starve the water of oxygen．Power plants kill untold millions of fish when they suck up river water to cool their machinery．Invasive species, dirty water and fertilizer runoff and over-fishing in the ocean, where species like shad spend much of their lives, all take their toll．

Not all fish are struggling．Striped bass are on the increase, as are bluefish and spot-tail shiners．But with other species moving slowly downwards, signs point to a sicker, less stable Hudson ecosystem than many had imagined．

Riverkeeper’s report shows how little we understand the biology of one of the country’s most historic and important estuaries （河口，江口）．It is a reminder that even the hardest-fought conservation （對(duì)自然環(huán)境的保護(hù)）victories may look like the easy ones, and that self-satisfaction can be the death of environmental progress．

1．What’s the best title for the text?

A．The Hudson River．

B．Fishes in the Hudson River．

C．Trouble in the Hudson River．

D．Stable Hudson ecosystem．

2．The news found through a study by the environmental group Riverkeeper is      ．

A．exciting                                     B．surprising

C．encouraging                                     D．disappointing

3．What causes the lack of oxygen in the Hudson River?

A．Growing warmth of the water． 

B．Power plants along the river．

C．Invasive species．

D．Fertilizer runoff and over-fishing．

4．It’s concluded from the passage that        ．

A．a(chǎn)ll fish are on the increase

B．Hudson ecosystem is ill-balanced

C．it’s not so difficult to gain conservation victories

D．people have realized the importance of the Hudson River

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源： 題型：053

　　MONTREAL (Reuters)-Crossing the US-Canada border (邊界) to go to church on a Sunday cost a US citizen $ 10 000 for breaking Washington's strict new security(安全) rules.

　　The expensive trip to church was a sur-prise for Richard Albert, who lives right on the Canadian border. Like the other half-doz-en people of Township 15, crossing the bor-der is a daily occurrence for Albert. The nearby Quebec village of St. Pamphile is where they shop, eat and go to church.

　　There are many such situations in these areas along the largely unguarded 5 530-mile border between Canada and the US-which in some cases actually runs down the middle of streets or through buildings.

　　As a result, Albert says he did not expect any problems three weeks ago when he returned home to the US after attending church in Cana-da, as usual. The US customs (海關(guān)) station in this area is closed on Sundays, so he just drove around the locked gate, as he had done every weekend since the gate appeared last May, fol-lowing a tightening of border security. Two days later, Albert was told to go to the customs office, where an officer told him he had been caught on camera crossing the border illegally(非法).

　　Ottawa has given out special passes to some 300 US citizens in that area so they can enter the country when Canadian customs stations are closed, but the US stopped a similar program last May. That forces the people to a 200-mile detour along hilly roads to get home through another border check-point.

　　Albert has requested that the customs office change their decisions on the fine, but he has not attended a Sunday church since. “I feel like I'm living in a prison, ”he said.

(1) We learn from the text that Richard Al-bert is ________ .

[　　]

A．a(chǎn)n American living in Township 15

B．a(chǎn) Canadian living in a Quebec village

C．a(chǎn) Canadian working in a customs station

D．a(chǎn)n American working in a Canadian church

(2) Albert was fined because he ________.

[　　]

A．failed to obey traffic rules

B．broke the American security rules

C．worked in St. Pamphile without a pass

D．damaged the gate of the customs office

(3) The underlined word “ detour ” in Para-graph 5 means ________ .

[　　]

A．a(chǎn) drive through the town

B．a(chǎn) race across the fields

C．a(chǎn) round about way of travelling

D．a(chǎn) journey in the mountain area

(4) What would be the best title for the text?

[　　]

A．A Cross-country Trip.

B．A Special Border Pass.

C．An Unguarded Border.

D．An Expensive Church Visit.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

An annoying problem for humans, who like to boast (夸耀) about all the distant planets and moons we have explored, is that we've never taken a good look right under our noses．The inside of the earth is relatively close but how can we get there?

The deepest oil well enters a mere six miles into the crust (地殼)  (the center of the earth is about 4,000 miles deeper)．Russian scientists dug the deepest hole in Siberia," but bottomed out at about 7.5 miles below the surface．The Mohole project, a U.S．plan in the 1950s, called for drilling a hole 25 miles down to the boundary be??tween the hard rocks of the crust and the soft mantle (地幔)．Sadly the project involved govern??ment supporting.

It gets harder and harder to drill deep into the earth because rocks get softer and softer． Hard but easily broken at the surface, rocks become plastic at depth, and the pressure caused by the weight of the overlaying crust — about 52,800 pounds per square inch at a depth of ten miles, makes further drilling impossible.

What little we know about the inside of the earth (like the fact that there' s a crust, a mantle, and a core) comes from indirect evidence, such as the analysis of earthquakes.

So maybe it' s time for a thorough new method to explore the earth's inside．Scientist David Stevenson says we should forget about drilling holes．Instead, we should open a crack (裂縫)． 

Stevenson suggests digging a crack about a half mile long, a yard wide, and a half mile deep (not with a shovel) but with an explosion on the scale of a nuclear bomb．Next, he'd pour a few hundred thousand tons of molten (融化的) iron into the crack, along with a robot．The iron, thicker than the surrounding crust, would move downward at about 16 feet per second, carrying the robot with it and opening the crack deeper and deeper．The iron mass would drop for about a week and 2,000 miles to the outer edge of the earth core, the robot sending out data to the sur??face.

Stevenson compares his idea to space explo??ration．"We're going somewhere we haven't been before," he says．"In all possibility, there will be surprises."

This idea can probably be put in．the drawer marked with Isn't Going To Happen．The robot would have to survive temperatures that would melt pretty much anything．But Stevenson's idea may inspire a new look at an old problem．Great things can come from what seems like impossible ideas.

Going inside the earth is ________ than going into space.

A．more interesting B．more possible    C．easier            D．more challenging

How deep have we gone into the earth until now?

A．6 miles．         B．4,000 miles． C．7.5 miles．        D．25 miles.

Which of the following is TRUE about David Stevenson's idea?

A．It is an inspiring but not practical idea now．

B．It is a practical proposal that has come into use now.

C．It is a good proposal that will soon be put into practice.

D．It is a false theory that cannot be carried out at all.

What might be the most suitable title for the text?

A．An Annoying Problem for Humans

B．To the Center of the Earth

C．The Mohole Project

D．David Stevenson' s Proposal

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：廣東省09-10學(xué)年高一下學(xué)期單元檢測(cè)試題（英語(yǔ)） 題型：單詞拼寫(xiě)

 

三、單詞拼寫(xiě)：請(qǐng)根據(jù)括號(hào)內(nèi)漢\英語(yǔ)提示或已給的首字母寫(xiě)出單詞的正確形式。（1分×10=10分）

1. He e____________ us for hours with his stories and jokes

2. Tibet is a  ____________（多山的） province .

3. U______________, my computer system broke down again .

4. The learner of a second language has many difficulties to ___________(克服).

5. We were a____________ that she behave so rudely at the party.

6. The little boy a_________  himself by drawing pictures on the ground .

7. To our surprise , he made no ____________（解釋）of his absence.

8. Those who have not known _________ (hungry) can never imagine what it is.

9. The play was so   _______ (humour) that the audience laughed all through it.

10. The news that Tom, an excellent student, had ________ (failure) his exams sur­prised us all.

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：廣東省同步題 題型：填空題

單詞拼寫(xiě)：請(qǐng)根據(jù)括號(hào)內(nèi)漢\英語(yǔ)提示或已給的首字母寫(xiě)出單詞的正確形式。
1. He e________ us for hours with his stories and jokes
2. Tibet is a ________(多山的) province.
3. U________, my computer system broke down again.
4. The learner of a second language has many difficulties to _______(克服).
5. We were a________ that she behave so rudely at the party.
6. The little boy a_________ himself by drawing pictures on the ground.
7. To our surprise, he made no _________(解釋)of his absence.
8. Those who have not known ________ (hungry) can never imagine what it is.
9. The play was so _______ (humour) that the audience laughed all through it.
10. The news that Tom, an excellent student, had ________ (failure) his exams sur-prised us all.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

三、單詞拼寫(xiě)：請(qǐng)根據(jù)括號(hào)內(nèi)漢\英語(yǔ)提示或已給的首字母寫(xiě)出單詞的正確形式。（1分×10=10分）

1. He e____________ us for hours with his stories and jokes

2. Tibet is a  ____________（多山的） province .

3. U______________, my computer system broke down again .

4. The learner of a second language has many difficulties to ___________(克服).

5. We were a____________ that she behave so rudely at the party.

6. The little boy a_________  himself by drawing pictures on the ground .

7. To our surprise , he made no ____________（解釋）of his absence.

8. Those who have not known _________ (hungry) can never imagine what it is.

9. The play was so  _______ (humour) that the audience laughed all through it.

10. The news that Tom, an excellent student, had ________ (failure) his exams sur??prised us all.

查看答案和解析>>

同步練習(xí)冊(cè)答案