A.Sheep mainly eat grass all the year round.

B.Sheep　　　　 　　　　 grass　　　　 　　　　 the year.

句型转换

完成B句，使其与A句意思相同或相近。（每空一词）

A．Sheep mainly eat grass all the year round.

B．Sheep _____ _____ grass _____ _____ the year.

句型转换

Sheep mainly eat grass all the year round.

Sheep ________ ________ grass ________ ________ the year.

Today just as technology changed the face of industry, farmers have undergone an "agricultural revolution". On the farm of today, machines provide all the power.
One of the most important benefits will be the farm computer. A few forward-looking farmers are already using computers to help them run their farms more efficiently. The computers help them keep more accurate records so they can make better decisions on what crops to plant, how much livestock to buy, when to sell their products, and how much profit they can expect. Many computer companies have been developing special computer programs just for farmers. Programs are being written for hog(猪) producers, grain farmers, potato farmers, and dairy farmers. In the future, farmers will be able to purchase computer programs made to their needs. Because of the growing importance of computers on the farm, students at agricultural colleges are required to take computer classes in addition to their normal agricultural courses. There can be no doubt that farmers will rely on computers even more in the future. While the old-time farm depended on horse power, and modern farms depend on machine power, farms of the future will depend on computer power.
Another technological advance which is still in the experimental stage is the robot, a real "mechanized hired hand" that will be able to move and, in some ways, think like a human being. Unlike farmers of the present, farmers of the future will find that many day-to-day tasks will be done for them. Scientists are now developing robots that will be able to shear(修剪) sheep, drive tractors, and harvest fruit. Even complex jobs will be done by robots. For example, in order to milk their cows, farmers must first drive them into the special barn(畜棚), then connect them to the milking machines, watch the machines, and disconnect them when they are finished. In the future, this will all be done by robots. In addition, when the milking is completed, the robots will automatically check to make sure that the milk is pure. The complete mobilization of the farm is far in the future, but engineers expect that some robots will be used before long.
【小题1】Which sentence carries the main idea of the whole passage? 

New research shows sheep are clever

People often make jokes about how dull sheep are, but new research shows they may be cleverer than we think. Researchers at the University of Cambridge discovered that Welsh mountain sheep have brainpower that equals rodents (啮齿动物). Tests found that the sheep can map the area they live in, and some may even be able to plan ahead.

Young fish prefer noisy neighbors

A new study has shown that young fish like to live on reefs with noisy neighbors! Researchers from the universities of Auckland and Bristol found that young fish looking for a home choose areas where other noisy fish live. The scientists produced all kinds of sounds which had been recorded in different natural environments. The young fish seemed to prefer the sounds of natural reefs, complete with noisy animals! The scientists compared the choice to a music fan wandering around at a music festival, choosing to set up a tent closest to the music they like best!

Butterflies are disappearing

A new study has shown that 17 species (物种) of butterfly found in Europe have dropped by 70% in the last 20 years. The information collected from 3,000 sites across 15 countries shows it may be caused by the loss (减少) of grasslands covered with flowers. You can encourage butterflies to come into your garden by planting flowers.

1.What is the passage mainly about?

A．Some new studies about animals.           B．People’s wrong ideas about animals.

C．Why the number of animals has dropped.     D．The importance of protecting animals.

2.According to the first paragraph, we may infer that sheep _____.

A．are less clever than rodents               B．can find their home

C．can read maps                          D．are good planners

3.Which seems to have to do with the number of butterflies?

A．The species of grass in grasslands.                                          B．The species of trees in grasslands.

C．The number of flowers in grasslands.                                       

D．The number of animals in grasslands.                                       

4.In which part of a newspaper can we most probably read the passage?

A．Geography.        B．Culture.           C．Travel.            D．Nature.