[填空题]______different kinds of sounds are mentioned in Paragraph 3.

[简答题]How many different kinds of sounds are mentioned in Paragraph 3

[填空题]______different kinds of sounds are mentioned in Paragraph 3.

[简答题]S3. How many different kinds of sounds are mentioned in Paragraph 3

[填空题]Television keeps introducing different kinds of food, which is changing Americans’ taste.

[单项选择]Although there may be thousands of different kinds of jobs, as I see it there are basically only two kinds of work. One is the sort that in the main is done for its own sake. It has little to do with bosses, or clerks or wages and it usually proves rewarding in itself. The other sort is normally done in return for a weekly wages in factories, on building sites or down in mines.
A research scientist may find his income quite a lot for doing what he would do anyway even if he were rich. Others grumble. But could you find such a person who has never grumbled all his life
The worst things of all is having a job where there are no consolations whatever. A factory worker says, "For eight hours a day, five days a week. I’m the exception to the rule. That life can’t exist in a vacuum. Work to me is a great loss, and I begrude (吝啬) every precious minute of my time that it takes." Another man says, "I have little other interest in the job than getting money on Friday and getting out of
A. we mustn’t do the kind of work giving us no interest
B. we should work just for money
C. all of us should grumble about our work and wages
D. most people have a reason to grumble about their work

[单项选择]Shark Facts
There are almost 400 different kinds of sharks. Each kind of shark looks different, has a unique diet, and behaves differently. There are sharks in all four oceans of the world. Some sharks are longer than a school bus, while others are so small they can live in fish tanks. Sharks come in all kinds of colors. Most of the time, their skin color helps them blend in with their surroundings. But, some’sharks that live in the deepest part of the ocean actually have parts that glow in the dark. Most sharks live in salt water, but some can live in fresh water. All sharks are unique, or have different qualities that make them so special.
Sharks are actually a type of fish. There are some similarities as well as differences between sharks and typical fish. Shark skeletons are made of cartilage. Fish skeletons are made of bones. Cartilage is the bendy, tough substance in people’s ears and noses. Like other fish, sharks have gills. Gills are how fish breathe
A. Right
B. Wrong
C. Not mentioned