2021年成考高起点《英语》常见典型例题及答案（15）_金宝搏188入口

单选题

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2021年成考高起点《英语》常见典型例题及答案（15）

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[单选题]A world like no other--perhaps this is the best way to describe the world of the rainforest. No rainforest is the same-yet most rainforests can be found in the small land area 22. 5 degrees north and 22. 5 degrees south of the Equator(赤道). You can find rainforests in South America and Indonesia. Other rainforests exist further from the Equator, in Thailand and Sri Lanka.

Rainforests have a great role to play in supporting the world. They are home to a rich variety of plants, birds and animals. Can you believe that 480 varieties of trees may be found in just one hectare (公顷) of rainforest? These forests have around 50% of all the plants, birds and animals on Earth.

Rainforests have their own perfect way for living. The tall trees make a huge umbrella of branches and leaves which protect themselves, smaller plants, and the forest animals from heavy rain,dry heat from the sun and strong winds. Rainforest trees grow in such a way that their leaves and branches, although close together, never actually touch those of another tree. Scientists think this is a way to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects (昆虫). To live in the forest, animals must climb, jump, or ly across the branches and trees.The ground floor of the forest is not all leaaves and bushes, like in films, but is actually fairly clear. It is where leaves become food for the trees and other forest life.

Rainforests around the world are disappearing at a high speed. A few thousand years ago, rainforests covered as much as 12% of the land surface on Earth, but today this has fallen to less than 5.3%. We hope that the world governments work together with scientists to use their power and knowledge to keep the rainforests for our existence.

How much of the land surface on Earth is covered by rainforests?

AMore than 50%.

BNearly 12%.

CLess than 5.3%.

DAround 22. 5%.

参考答案：C

[单选题]Generations of Americans have been brought up to believe that a good breakfast is one life's essentials.Eating breakfast at the start of the day,we have all been told,and told again,is as necessary as putting gasoline in the family car before starting a trip.

But for many people the thought of food first thing in the morning is by no means a pleasure.So despite all the efforts,they still take no breakfast.Between 1977 and 1983,the latest year for which figures are available,the number of people who didn't have breakfast,increased by 33 percent.

For those who feel pain of guilt about not eating breakfast,however,there is some good news.Several studies in the last few years indicate that,for adults especially,there may be nothing wrong with omitting breakfast.”Going without breakfast does not affect performance,”said Arrold E.Bender,former professor of the nutrition at Queen Elizabeth College in London,”nor does giving people breakfast improve performance.”

Scientific evidence linking breakfast to better health or better performance is surprisingly inadequate,and most of the recent work involves children,not adults,”The literature”,says one researcher,Dr.Erresto at the University of Texas,”is poor”.

For those who do not take breakfast,the good news is that().

Aseveral studies have been done in the past few years

Bthe omission of breakfast does no harm to one's health

Cadults have especially made studies in this field

Deating little in the morning is good for health

参考答案：B

[单选题]选出下列读音不同的一项()。

Aenough

Babout

Ctouch

Dyoung

参考答案：B