—I missed the bus. What a pity! .

—            .There will be another one in five minutes,

         A．Never mind   B．Not at all   C．Take your time  D． No hurry

 Victor apologized for __________ to inform me of the change in the plan.

   A. his being not able            B. him not to be able  

C. his not being able            D. him to be not able

The flowers his friends gave him will die if _______ every day.

Many animals recognize their food because they see it. So do humans. When you see an apple or a piece of chocolate you know that these are things you can eat. You can also use other senses when you choose your food. You may like it because it smells good or because it tastes good. You may dislike some types of food because they do not look, smell or taste very nice. Different animals use different senses to find and choose their food. A few animals depend on only one of their senses, while most animals use more than one sense.

Although there are many different types of food, some animals spend their lives eating only one type. The giant panda eats only one particular type of bamboo. Other animals eat only one type of food even when given the choice. A kind of white butterfly will stay on the leaves of a cabbage, even though there are plenty of other vegetables in the garden. However, most animals have a more varied diet. The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diet of these animals will be different depending on the season.

Humans have a very varied diet. We often eat food because we like it and not because it is good for us. In countries such as France and Britain, people eat foods with too much sugar. This makes them overweight, which is bad for their health. Eating too much red meat and animal products, such as butter, can also be bad for the health. Choosing the right food, therefore, has become an area of study in modern life.

1.We can infer from the text that humans and animals _________.

A. depend on one sense in choosing food                 

C. choose food in similar ways      B. are not satisfied with their food

D. eat entirely different food

2. Which of the following eats only one type of food?

A. The white butterfly.     C. The bear.    B. The small bird.     D. The fox.

3.Certain animals change their choice of food when ___________.

A. the season changes  

C. they move to different places    B. the food color changes

D. they are attracted by different smells

4.We can learn from the last paragraph that __________.

A. food is chosen for a good reason 

C. some people have few choices of food       B. French and British food is good

D. some people care little about healthy diet

With the development of society and economy, animals and their habitats are getting pushed aside as households decrease in size and increase in number.

Small numbers of people per household on average use more energy and goods per person. Greater numbers of households require more natural resources for construction. The possible result of this problem may be insufficient natural resources to meet consumer demand without endangering habitats important to biodiversity.

Personal freedom and social choice may come at huge environmental cost. Direct costs include visible damage to animal habitats and plant life. Indirect costs include the release of more greenhouse gases.

The effects of such “personal freedom and social choice” have already surfaced in south-west China’s Wolong Nature Reserve. In Wolong, they found that a reduced average household size was directly tied to an increase in homes, and thus an increase in the amount of firewood consumed for cooking and heating. The rise in wood fuel use has contributed to disappearance of forests and to the loss of habitats for giant pandas. 

Curious about whether other parts of the world were experiencing similar phenomena, they got the support of a team of researchers including Stanford’s Paul Ehrlich, well-known for his population studies, to find out the household dynamics in 141 countries between 1985 and 2000. Their study proved that the difficult choice of Wolong is part of a global trend.

In the 76 countries considered biodiversity “hotspots”, such as the United States, Brazil, Australia, and Kenya, the number of households grew by 3.1% every year, while the population increased just 1.8%. Meanwhile, the number of people per home dropped from 4.7 to 4.0. The decline in household size has resulted in 155 million additional households in hotspot countries, almost always limiting biodiversity.

In the 10 non-hotspot countries — those without high-density areas of animal and plant species — similar results were found, though on a lesser scale. Even in countries experiencing population decline, such as New Zealand, the number of households still increased because of a reduction in household size.

1.What does the underlined word “insufficient” mean?

2.It can be learned from the passage that China’s Wolong Nature Reserve_____

3.Which of the following is best supported by the last two paragraphs?

4. What does the passage mainly talk about?