SKIN FOOD海藻系列的功效？

A)because

B)so

C)for

D)just as

Some British supermarket companies are asking their warehouse

workers to wear small computers, calling "electronic tags". The 【M1】______

companies say that these tags will to help them to reduce costs 【M2】______

and increase the efficient delivery of goods and food to stores.

The system uses American satellite and radio technology

send messages to the workers. In a report Professor Blakemore 【M3】______

from the University of Durham said that the use of

these tags is making some workplaces more like prisons. 【M4】______

The technology arrived from the US at the start of the year

and more and more companies are using it. Almost 10,000

employees are using it to supply good to well-known British 【M5】______

supermarkets. Trade unionists representing workers are

worried that companies could use the technology to check

what workers are doing work. They are asking for special 【M6】______

measures to make sure that this does not happen.

Under the system, workers have to wore computers on 【M7】______

their wrists, arms and fingers, and sometimes they have to wear a

special vest contained a computer that instructs them 【M8】______

where go to collect goods from warehouse shelves. 【M9】______

The system also allowed the store to send orders to workers' computers. 【M10】______

【M1】

听力原文： Human population near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good example. Most mice are nocturnal, but the African grass mouse is active during daylight hours. This means that it spends its days searching for food in the semi-dry bush in squired habitats of eastern and southern Africa. Its furry stripes like a chipmunks, which helps it blend in with its environment. Because it spends a lot of time in the intense tropical sun, the grass mouse has also evolved two separate safeguards against the suns ultraviolet radiation. First, like the population of humans in this region of the world, the skin of the grass mouse contains lots of melanin, or dark pigment. Second and quite unusual, this mouse has a layer of melanin pigmented tissue between its skull and skin. This unique cap provides an extra measure of protection for the grass mouse and three other types of African mouse, like rodents that are active during the day. The only other species scientists have identified with the same sort of skull of that occasion is the white camp-making bat of the Central American tropic. Although these bats sleep during the day, they do so curled up with their head exposed to the sun.49．

A．It has a flattened shape

B．It has an extra layer of pigmented tissue

C．It has a furry covering

D．It has a large cranial cavity

听力原文： Human population near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good example. Most mice are nocturnal, but the African grass mouse is active during daylight hours. This means that it spends its days searching for food in the semi-dry bush in squired habitats of eastern and southern Africa. Its furry stripe's like a chipmunk's, which helps it blend in with its environment. Because it spends a lot of time in the intense tropical sun, the grass mouse has also evolved two separate safeguards against the sun's ultraviolet radiation.

First, like the population of humans in this region of the world, the skin of the grass mouse contains lots of melanin, or dark pigment. Second and quite unusual, this mouse has a layer of melanin pigmented tissue between its skull and skin.

This unique cap provides an extra measure of protection for the grass mouse and three other types of African mouse, like rodents that are active during the day.

The only other specie scientists have identified with the same sort of skull adaptation is the white tent-making hat of the Central American tropics. Although these bats sleep during the day, they do so curled up with their head exposed to the sun.

What is the speaker mainly discussing?

A．The adaptations of the African grass mouse to its environment.

B．The sleeping habits of the African grass mouse.

C．The effect of intense sunlight on the diet of the African grass mouse.

D．The habitat of the African grass mouse.

听力原文： Human population near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good example. Most mice are nocturnal, but the African grass mouse is active during daylight hours. This means that it spends its days searching for food in the semi-dry bush in squired habitats of eastern and southern Africa. Its furry stripe's like a chipmunk's, which helps it blend in with its environment.

Because it spends a lot of time in the intense tropical sun, the grass mouse has also evolved two separate safeguards against the sun's ultraviolet radiation. First, like the population of humans in this region of the world, the skin of the grass mouse contains lots of melanin, or dark pigment. Second and quite unusual, this mouse has a layer of melanin pigmented tissue between its skull and skin. This unique cap provides an extra measure of protection for the grass mouse and three other types of African mouse, like rodents that are active during the day. The only other species scientists have identified with the same sort of skull of that occasion is the white camp-making bat of the Central American tropic. Although these bats sleep during the day, they do so curled up with their head exposed to the sun.

(44)

A．The adaptations of the African grass mouse to its environment

B．The sleeping habits of the African grass mouse

C．The effect of intense sunlight on the diet of the African grass mouse

D．The habitat of the African grass mouse