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（请给出正确答案）
A.generally
B.eventually
C.extremely
D.gradually
答案
更多“The explorers sailed on the ocean for two weeks and ________ found the mysterious lan”相关的问题
第1题
A.must have sailed
B.can sail
C.might have sailed
D.should have sailed
第2题
The explorers ______ into the unknown regions of the Amazon River.
A．penetrated
B．injected
C．reached
D．stretched
第3题
A.covered
B.invented
C.discovered
D.founded
第4题
A．close, lost
B．close, losing
C．next, losing
D．closely, lost
第5题
It can be inferred from the passage that ______.
A．the Apollo mission was very successful
B．protection from space radiation is not an easy job
C．astronauts will have deformed children or grandchildren
D．radiation is not a threat to well-protected space explorers
第6题
It can be inferred that Saunders' journey to the North Pole ______.
A．was accompanied by his old playmates
B．set a record in the North Pole expedition
C．was supported by other Arctic explorers
D．made him well-known in the 1960s
第7题
根据下面内容，回答题：
Twelve years ago， oceanographer Captain Charles Moore was skippering his yacht the Alguita in the North Pacific. He sailed into a mass of floating plastic rubbish which took him and his crew a week to cross. This floating rubbish dump is now called the Great Pacific Garbage Patch and doubles the size of the USA.
The United Nations says there are now 18，000 pieces of plastic in every square kilometre of sea everywhere in the world. A walk along any beach will give you some idea of the seriousness of plastic pollution.
The trouble is， when we throw out plastic with the trash， the plastic doesn"t go away. Plastic does not biodegrade. It photo degrades into smaller and smaller particles which then enter the food chain.
Plastics contain cancer-causing chemicals along the food chain in increasing concentrations and end up in our fish and chips， along with hormone disruptors. Scientists try to tell us that we are killing ourselves as well as other animals. At least 200 species are， as I speak， being killed by plastic.
Whales， dolphins， turtles and albatross confuse floating plastic， especially shopping bags and six pack rings， with jellyfish.
Some countries have rebelled and banned plastic bags. And the first was brave Bangladesh. Then China took the same decision. Botswana， Canada， Israel， Kenya， Rwanda， Singapore and South Africa have also banned plastic bags. Notice how many of the world"s richest countries are not on this list. It"s an absolute disgrace.
Think globally， act locally. A small Australian town is now one step ahead of the rest of the world. The inhabitants of Bundanoon in New South Wales have banned plastic bottles from the town.
We need to follow their example and eliminate plastic from our lives， take care of the earth and vote for people we think will do the same.
The writer says that we can get an idea of how much plastic rubbish there is in the oceans by________. 查看材料
A.looking at the sea
B.travelling across the USA
C.sailing across the Pacific
D.taking a walk along any beach
