|Notting hill is a small town west of London. Here lives shy William, a divorced（离婚） man, who owns a little travel-book store.|
It was a Wednesday, when the poor shop keeper happened to meet Anna Scott ,a movie star who walked into his shop.
They ran across each other in the street again. And they found themselves falling in love. But how could a poor man keep the love of a famous star？ Their lives and their worlds were so different.
Six months later, Anna was in London again for her new film. She came to William’s thought …
Cast:Julia Roberts(actress), Hugh Grant(actor)
小题1:According to the passage, who most probably plays the role of Anna in the film ？
| Do you know Australia？ Australia is the largest island in the world. It is a little smaller than China. It is|
in the south of the earth. __1__The population of Australia is nearly as large as that of Shanghai.__2__The cities in Australia have got little air or water pollution. The sky is blue and the water is clean. You can
clearly see fish swimming in the rivers. Plants grow very well.
Last month we visited Perth, the biggest city in western Australia, and went to a wild flowers' exhibition.__3__We had a wonderful time. Perth is famous for its beautiful wild flowers. In spring every year Perth
has the wild flowers' exhibition.
After visiting Perth, we spent the day in the countryside. We sat down and had a rest near a path at the foot of a hill. It was quiet and we enjoyed ourselves. Suddenly we heard bells ringing at the top of the hill.
__4__There were about three hundred sheep coming towards us down the path. __5__After a short
drive from any town, you will find yourself in the middle of white sheep. Sheep, sheep, everywhere are
A. The government has made enough laws to fight pollution.
B. Australia is the sixth largest country in the world.
C. Australia is famous for its sheep and kangaroos.
D. Australia is big, but its population is not large.
E. What we saw made us pick up all our things and run back to the car as quickly as we could.
F. There we saw a large number of wild flowers we had never seen before.
G. The people of Australia are very hardworking.
The importance of particular metals in the human diet has been realised within the past few decades, and the idea that geology might be related to health has been recognized for a number of elements such as iodine, zinc and selenium. For example, soils with low iodine contents produce crops and animals deficient in iodine. A lack of iodine in the human diet leads to some serious diseases.
The ultimate source of metals within the human body is rocks, which weather into soil, gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth. The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environment have effects on the chemistry and health of plants, animals and people.
So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems. Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled. However, small children are particularly exposed to metal-rich dust topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.
Heavy metals are persistent: they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.
In contrast naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures, despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.
There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils. Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body. Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.
A. No evidence to indicate bad effects of naturally contaminated soil
B. Potential hazards of human contaminated soils
C. Research on channels of heavy metals getting into human food chain
D. Geology and health problems
E. Rocks—the ultimate source of soil pollution
F. Long-term health effects on children