Canned food does not go()
A.bad easily
B.badly easy
C.bad easy
D.badly easily
A.bad easily
B.badly easy
C.bad easy
D.badly easily
第2题
1.A parrot can be trained to do all the following but ____.
A、talk
B、help its owner
C、sing
D、create a lively atmosphere
2.Which of the following is NOT a reason for the easy raising of the parrot? ____
A、It eats very little.
B、Its food is inexpensive.
C、It does not need a house sitter.
D、It does not require daily walks as dogs do.
3.The word "tameness" in the passage means ____.
A、the quality of being brave or unafraid
B、the quality of being kind or warm-hearted
C、the quality of being uncontrollable or fierce
D、the quality of being gentle or trained
4.The word "jungle" probably means ____.
A、boundless desert with very little plant life
B、large apartment building with pleasing surroundings
C、wild land overgrown with thick bushes and trees
D、snow-covered mountain top in very cold areas.
5.The writer ____.
A、likes the parrot
B、dislikes the parrot
C、does not like nor dislike the parrot
D、values the parrot highly
第3题
What is it about a dog's gaze that makes it so charming? A new study by Japanese scientist Miho Nagasawa seems to have found the answer, and it has to do with something called the cuddle(爱抚)chemical.
The cuddle chemical has another, more scientific name: oxytocin.Oxytocin is a substance in the blood that encourages bonding.Levels of oxytocin increase, for example, when a mother feeds her newborn baby.According to Nagasawa's study, the same is true when we look deeply into the eyes of a dog.
The results of this study can tell us a lot about the history of the bond between humans and dogs.It all started somewhere tens of thousands of years ago.Scientists believe that wolves used to follow humans who were hunting large animals.The wolves would eat the food left behind by the humans.
Humans realized that they could use the wolves to help with the hunt, and eventually both species began to work together toward survival.
Over time, the wolves that interacted with the humans began to change.They became more loyal to their human partners.The wolves and humans started to depend on each other and bond with each other.These changes are what caused some of the wolves to turn into what we now know as dogs, a new specie evolved to better survive in their environment.
This process depended a great deal on the bond humans formed with them.And according to Nagasawa's study, this bond was formed with the help of oxytocin, the cuddle chemical.
11.What do we know about oxytocin?()
A.It regulates blood flow
B.It promotes bonding
C.It is in the human gene
D.It is good for health
12.When we look deeply into a dog's eyes, the levels of our oxytocin ____.
A.reduce over time
B.go either up or down
C.are on the rise
D.remain unchanged
13.At the beginning wolves followed humans to ____.
A.eat the food left by humans
B.guard against large animals
C.take humans for food
D.hunt large animals together
14.Over time some wolves turned into dogs ____.
A.due to their loyalty
B.due to the changing environment
C.for better survival
D.for better cooperation
15.What does Nagasawa9s study aim to do?()
A.Explore the role of human-wolf partnership
B.Show the characteristics of the cuddle chemical
C.Explain the bond between humans and dogs
D.Understand the evolution of species
第4题
The immediate problem is poverty. Most of Africa is urbanising at a lower level of income than other regions of the world did. That means there's little money around for investment that would make cities liveable and more productive. Without upgrades and new capacity, bridges, roads and power systems are unable to cope with expanding populations. With the exception of South Africa, the only light rail metro system in sub-Saharan Africa is in Addis Ababa, Ethiopia. Traffic jam leads to expense and unpredictability, things that keep investors away.
In other parts of the world, increasing agricultural productivity and industrialisation went together. More productive farmers meant there was a surplus that could feed cities; in turn, that created a pool of labour for factories. But African cities are different. They are too often built around consuming natural resources. Government is concentrated in capitals, so is the money. Most urban Africans work for a small minority of the rich, who tend to be involved in either cronyish (有裙带关系的) businesses or politics. Since African agriculture is still broadly unproductive, food is imported, consuming a portion of revenue.
So what can be done? Though African countries are poor, not all African cities are. In Lagos, foreign oil workers can pay as much as 65,000 dollars per year in rent for a modest apartment in a safe part of town. If that income were better taxed, it might provide the revenue for better infrastructure. If city leaders were more accountable to their residents, they might favour projects designed to help them more. Yet even as new roads are built, new people arrive. When a city's population grows by 5% a year, it is difficult to keep up.
76.What do we learn from the passage about cities in sub-Saharan Africa____
A.They have more slums than other cities in the world.
B.They are growing fast without becoming richer.
C.They are as modernised as many cities elsewhere.
D.They attract migrants who want to be better off.
77.What does the author imply about urbanisation in other parts of the world____
A.It benefited from the contribution of immigrants.
B.It started when people's income was relatively high.
C.It benefited from the accelerated rise in productivity.
D.It started with the improvement of peopled livelihood.
78.Why is sub-Saharan Africa unappealing to investors____
A.It lacks adequate transport facilities.
B.The living expenses there are too high.
C.It is on the whole too densely populated.
D.The local governments are corrupted.
79.In what way does the author say African cities are different____
A.They have attracted huge numbers of farm labourers.
B.They still rely heavily on agricultural productivity.
C.They have developed at the expense of nature.
D.They depend far more on foreign investment.
80.What might be a solution to the problems facing African cities____
A.Lowering of apartment rent.
B.Better education for residents.
C.More rational overall planning.
D.A more responsible government.
第5题
第9题
A.vegetable
B.fruit
C.food
D.drink