Nano-based.
Carbon-based.
Crystal-based.
Silicon-based.
第1题:
第2题:
The Boston Tea Party took place in 1773.
Europeans figured out ways to use coffee during the 1670s.
During the 1770s, more and more Americans began to drink coffee.
Coffee is a refreshing drink.
第3题:
Solar panels are very expensive to install.
Sheridan Community Schools is completely solar-powered.
In 2014, fewer than l,000 schools used solar power in the US.
More and more schools are switching to solar power to cut costs.
第4题:
Mechanical cars are the most expensive.
Radio-controlled cars are the most expensive.
Radio-controlled cars are cheaper than remote-controlled cars.
Mechanical cars are more expensive than remote-controlled cars.
第5题:
Email reduces other forms of contact.
Email enhances other forms of contact.
About 25% of network members are contacted by email weekly.
With email, people try hard to maintain more relationships.
第6题:
Not all the fires in the forests must be put out.
People‘s carelessness leads to dangerous fires.
Australia allows all the fires to burn naturally.
There are more fires in Russia than in the USA.
第7题:
They are natural endowments to living creatures.
They are more important than instincts to all animals.
They are subject to the formative influence of the environment.
They are destined to open out a much more far-reaching possibility in the evolution of human beings.
第8题:
The Boston Tea Party took place in l773.
Europeans figured out ways to use coffee during the 1670s.
During the l770s, more and more Americans began to drink coffee.
Coffee is a refreshing drink.
第9题:
Separating usable products from trash.
Processing them so that they can be used as more expensive materials.
Returning them to markets as new products.
Splitting them into three categories: hazardous items, combustible waste and noncombustible waste.
第10题:
The electronic instrument is much more expensive.
The electronic instrument is slightly more expensive.
The piano is slightly more expensive.
The piano is much more expensive.
第11题:
Businessmen absorbed in their career are narrow-minded.
Managers often find it hard to tell right from wrong.
People engaged in technical jobs lead a more rewarding life.
Career seeks should not focus on immediate interests only.
第12题:
The Division of Labour makes work more interesting.
Specialisation could solve the problem of unemployment.
Adam Smith put forward the idea of the Division of Labour.
Adam Smith insisted that each worker be better paid.
第13题:
第14题:
Italy.
Spain.
Greece.
France.
第15题:
Nano-based.
Carbon-based.
Crystal-based.
Silicon-based.
第16题:
Oil energy has been popular with the manufacturing industry.
Solar energy is too expensive for family use at present.
Wind energy is much used in plateaus.
Water energy is widely used in costal regions.
第17题:
Food
Chocolate drinks
Potato
Coffee
第18题:
Both ships were expensive ones.
A similar number of women and children from both ships survived.
About the same number of people from each ship died.
Both ships had a similar number of passengers.
第19题:
The address system was used to make web pages.
The World Wide Web was created in Switzerland.
The fist web browser was very expensive to buy
Many people could use the Internet before 1990
第20题:
Smell is the most emotional of the senses.
Smell stimulates our memory more than the other senses.
Smell is considered to be mysterious, as it is untouchable.
Smell is the most difficult sense to identify.
第21题:
Italy
spain
France
Greece
第22题:
Americans were more in contact before the advent of the Internet.
The Internet is weakening the tie of social networks.
If you use the internet, you are more likely to get help from network members.
Internet users are more likely to receive help from non-users.
第23题:
Cognition enhancers may be used as coffee as today.
It could become as common as a cup of coffee.
It may help people sleep more efficiently.
This kind of drugs is as tasty as coffee.
第24题:
Food.
Chocolate.
Potato
Coffee.