Unit 6 Nurturing nature

Section Ⅰ Starting out & Understanding ideas

单词拼写 根据首字母或汉语提示，用本部分所学单词的正确形式填空。

1.Relax as much as possible and keep breathing s_____________.

2.Her hair started falling out as a result of r___________ treatment.

3.Today， I want to serve as a w___________ manager because I care about the eco-system.

4.You can relax yourself in your l___________ time.

5.China has ___________ （壮丽的） culture with a long history.

6.The eye is one of the most ___________ （脆弱的） parts of the body.

7.When he got bored， Bob ___________（徘徊） around the woods.

8.Moonlight shines on the dark ___________ （如镜面般的） surface of a mysterious lake.

选择填空 用方框中所给短语的适当形式填空。

catch one’s eye among the top concerns overcome the challenges of

bring… to life at one’s leisure

1.These old men and women usually go to dance ___________.

2.If we keep that spirit alive， then I know that we will ___________ our time.

3.The moment a tourist enters the forest， one amazing view after another will ___________ .

4.His aim， in which he succeeds proudly， is to ___________ the culture of the time ___________.

5.As we know， these issues are now ___________ in every region of the world.

课文语法填空

It took years to complete the Qinghai-Xizang Railway. The construction workers 1   （overcome） the most difficult engineering challenges， one of which was how to protect the delicate ecosystem. To allow the wild animals 2 （move） safely and freely in their 3 （nature） habitat， they built thirty-three passages under the railway. To prevent damage to wetlands and grasslands， 675 bridges with a total length of about 160 kilometres 4 （build） between Golmud and Lhasa. They even moved 140，000 square metres of wetland to 5 new area in order to protect its distinct ecosystem. Located at over 5，000 metres above sea level， Tanggula Station 6 （be） the highest railway station in the world. In 7 （locate） such as this， the thin air， changeable weather 8 high levels of UV radiation presented perhaps the greatest challenge for railway workers. To make sure they stayed healthy， several oxygen-making stations were constructed. To

protect Cuona Lake 9 construction waste， the railway workers used thousands and thousands of sandbags to build a twenty-kilometre wall along the lake. In a word， the railway workers built our “impossible” railway with the care that the environment deserves. It is 10 （true） an extraordinary “Sky Railway”.

1.___________  2. ___________  3. ___________  4. ___________ 5. ___________

6. ___________  7. ___________  8. ___________  9. ___________  10.___________

阅读理解

A huge section of the Milne Ice Shelf， located on Ellesmere Island in the northern Canada， collapsed （坍塌） into the Arctic Ocean， according to the Canadian Ice Service. This created an “ice island” which is about 30 square miles in size. As a comparison， Manhattan Island is about 23 square miles.

“Entire cities are that size. These are big pieces of ice，” Luke Copland， a glaciologist at the University of Ottawa who was part of the research team studying the ice shelf， told Reuters. “This was the largest remaining undamaged ice shelf， and it’s collapsed， basically. ”

The Canadian Ice Service said that “above-normal air temperatures， offshore winds and open water in front of the ice shelf are all part of the recipe for the ice shelf to break up.” A huge section of the Milne Ice Shelf has collapsed into the Arctic Ocean， producing a 30-square-mile ice island.

The ice shelf has now been reduced in area by about 43%. An ice shelf is a thick slab of ice， attached to a coastline and extending out over the ocean， according to the National Snow and Ice Data Center. “Some shelves have existed for thousands of years，” the center said.

So， what’s going on up there？ Though the planet is warming worldwide due to climate change， the Arctic has been warming at a rate twice that of the rest of the world. This summer has been particularly warm： Arctic sea ice melted to its lowest July level on record and in June， a town in Siberia soared （急升） to 100.4 degrees Fahrenheit， believed to be a record high for the Arctic.

“When I first visited those ice caps， they seemed like such a permanent fixture （固定设施） of the landscape，” Mark Serreze， director of the NSIDC and geographer at the University of Colorado， Boulder， said in a statement. “To watch them die in less than 40 years just blows me away.”

1. Why does the author mention Manhattan Island in Paragraph 1？

A. To introduce Manhattan Island. B. To compare two different places.

C. To say Manhattan undamaged is great. D. To show the great collapse is terrible.

2. What is one reason that made the ice shelf collapse？

A. Its location. B. Its huge body.

C. Special undamaged form. D. Higher air temperatures.

3. What can we know from Paragraph 5？