Unit 3 课文挖空训练-（2022新）人教版高中英语选择性必修第四册.docx

1、 REACHING OUT ACROSS THE SEATrade and curiosity have often formed the _1_(found) of mankinds greatest achievements. To complete the great map of the world was _2_ strong passion for the people of early civilisations. Marco Polos tales inspired European explorers to search _3_ sea routes from west to

2、 east. _4_, merchants and explorers from the East set sail from east to west many years before Columbus first did.In ancient _5_(time), silk from China found its way overland to India, the Middle East, and Rome, along _6_ became known as the Silk Road. A trading route across the sea was also extende

3、d along the coasts of the Indian Ocean, _7_(centre) around Ceylon (now Sri Lanka). Here, merchants from China and many other places met to negotiate trade deals, which also led to more _8_(aware) of each others cultures. Over the centuries, further trading allowed more exploration of the regions to

4、the west of China, as _9_(record) in Du Huans Record of My Travels in the eighth century. Later, the Ming Dynasty further developed relations _10_ these regions. Between 1405 and1433, seven large fleets sailed west on voyages of trade and exploration. These fleets were a sight _11_(behold) and were

5、in a league of their own at that time. _12_ the command of Zheng He, they set sail from the South China Sea across the Indian Ocean to the mouth of the Red Sea, _13_ then to the east coast of Africa. African royal families sent gifts such as giraffes as gestures of friendship in return _14_ gold, si

6、lk, and spices. Although China _15_(withdraw) from further expeditions after 1433, these land and sea routes _16_(remain) active channels between other cultures for centuries. To reach out across the sea remains _17_ strong desire today. The ancient sea routes travelled by Zheng He _18_(revisit) wit

7、h the 21st Century Maritime Silk Road, _19_ is part of the Belt and Road Initiative. The aim of this initiative is _20_(encourage) cooperation and trade across the historic Silk Road areas, and strengthen the bonds between China and the rest of the world. Trading _21_(grow) greatly in recent years,

8、and will continue to do so in years _22_(come). China has invested billions in systems and services along these routes, _23_ will help to greatly develop the whole area for the benefit of future trade and _24_(culture) exchange. China has also joined its friends across the sea on other important pro

9、jects. Although the ancient sea routes of Zheng He have been travelled many times, there are still many other places _25_(leave) to explore. In recent years, China has joined other nations on several expeditions to explore the Arctic. From a scientific point of view, there is _26_ urgent need to stu

10、dy the Arctic in order to understand climate change and its effects. Hundreds of years on, and _27_ the latest technology in hand, the need to trade and the desire _28_(enhance) relationships will drive China _29_(reach) out across the sea far into the future.Express your opinions on sea exploration

11、Text 1When people talk of exploring the sea more, they usually mean _1_(exploit) it. Sea exploration _2_(cause) many problems and will continue to cause more. More exploration means _3_(much) pollution. The Deepwater Horizon spilled over 200 million gallons of oil into the sea in 2010. Plastic pollu

12、tion is also bad, killing many birds and fish, and even _4_(find) in our tap water. Mining for resources is very _5_(damage), especially in the Arctic. Because of climate change, there is _6_(little) ice now, which means we can look for more fossil fuels further north. But _7_ we burn these, the ice

13、 will melt more and this negative cycle will continue. Climate change _8_(warn) us that something is very wrong. Overfishing is another problem. Whales and dolphins are also hunted for their meat _9_ for so-called research. Although this _10_(ban) in 1982, some countries are still murdering these in

14、telligent creatures without mercy. The sea is home _11_ life, not human beings possessions. It is huge, but it is _12_(sensitive) than we think. If we do not protect it, future generations will not forgive us.Text 2To _1_(true) understand our planet, we must explore the oceans which cover most of it

15、. Opponents may be concerned, but sea exploration is important for our future. For example, scientific research ships can help address important _2_(issue) such as climate change. We need to understand what is happening to our planet so that we can take action. _3_, more research is necessary.Unders

16、tanding more about the sea will also help us manage its resources _4_(well). _5_(log) new species will improve our understanding of life on the earth. It may help us discover new medicines, as well as new sources of food and energy. _6_(access) the deep ocean may also help us to predict events such

17、as earthquakes. The population of the world is growing and we need new resources for future development. There are _7_(probable) vast amounts of resources under the sea and ice, not just oil and gas but also _8_(value) minerals. Of course, there are still _9_(environment) risks. However, these shoul

18、d be balanced with _10_(economy) needs. Hopefully, _11_ technology improves, we may have more options for managing this balance.A SEA OF PLASTICScientists _(visit) tiny Henderson Island in the South Pacific recently made an alarming discovery. Although it is one of the most remote places on the eart

19、h and previously untouched by humans, the island _(cover) in plastic waste. They calculated there were 38 million pieces of plastic, _(weigh) almost 18 tons, with thousands of new pieces _(wash) up each day. No country has a free pass - we found plastic from everywhere, said one scientist. We all ha

20、ve a responsibility, and we have to sit up and pay attention. This is not _ issue to ignore. We need to do something now to protect the sea.Plastic waste in the sea has long been known about, _ only now are we discovering the true extent of the problem. Plastic takes hundreds of years _(decompose),

21、so all the plastic ever produced still exists somewhere. Around 95% of plastics made are not recycled, and large amounts enter the sea. Currents collect this waste in large circular systems _(call) gyres. One of the _(large) is in the Pacific Ocean, an area now known _ the Great Pacific Garbage Patc

22、h.The problem gets worse as plastic breaks _ into very small pieces, or micro plastic. This is eaten by fish and leads to massive species _(lose). Humans also eat these fish, and micro plastic has even been found in tap water around the world. The problem has spread too far to ignore. The plastic on

23、 Henderson Island accounts _ just 2 seconds worth of global annual plastic production. That production will more than triple by 2050. Then there will be the same _(weigh) of plastic in the sea as fish. However, there are some young minds _(work) to clean up and protect the sea for future generations

24、. While _(dive) in Greece, young Boyan Slat noticed there was more plastic waste than fish. He decided right then to dedicate his life to _(solve) this problem. _(previous) the problem was considered too big to solve; collecting the plastic with boats and nets would be expensive, would harm sea life

25、, and _(take) thousands of years! But, Boyan thought, why move through the sea when the sea can move through you? To work with the currents and gyres would help collect the waste. So he started The Ocean Cleanup project, which places very long _(float) barriers in the Pacific. Currents then concentr

26、ate the waste naturally so it can be collected and _(recycle). He hopes to reduce the patch _ 50% in just five years. Many problems today are side effects of things people didnt think _ in the past, he says. Sea plastic is a symbol _ the negative effects of our lifestyle and technology. Our aim should be _(create) a new lifestyle for this century. Protecting the sea from plastic is a good place to start! 6 / 6学科网（北京）股份有限公司