[单项选择]More and more vehicles using cheap fuel, declared scientists at the conference, have left Bangkok’s children with body lead levels the world highest.
A. in the world highest
B. in the world’s highest
C. among the world’s highest
D. among the highest of world

[单项选择]More and more vehicles using cheap fuel, declared scientists at the conference, have left Bangkok’s children with body lead levels the world highest.
A. in the world highest
B. in the world’s highest
C. among the world’s highest
D. among the highest of world

[单项选择]The search for a cheap alternative fuel has led American scientists to study the potential of______.
A. sunlight
B. pure hydrogen gas
C. pond water
D. small stream

[填空题]One of the advantages of using hydrogen as fuel is that after being used it only produces______.

[简答题]Complete the form using NO MORE THAN TWO WORDS OR A NUMBER for each answer.
Name: (2)
Address: (3) Drive, Manly
Telephone: (4)
$20 Plan Details: includes $15 of calls per month
$35 Plan Details: (5) per 30 seconds
$50 Plan Details: (6) contract
Plan chosen: (7)
Option to upgrade: (8)
Insurance: (9) per month
Total minimum cost
(including insurance): (10)

[单项选择]A. A more economical diesel fuel. B. Characteristics of a new type of fuel.
C. Where a new energy source is located. D. How to develop alternative energy sources.

[单项选择]A. A more economical diesel fuel. B. Characteristics of a new type of fuel.
C. Where a new energy source is located. D. How to develop alternative energy sources.

[单项选择]Using fossil energy more efficiently is in the interest of the nation and the global environment, but major improvements are unlikely unless proposed government standards are implemented to eliminate products or practices that are among the least efficient in their class.
Objection: Decisions on energy use are best left to the operation of the market.
Which one of the following, if true, most directly undermines the objection above
A. It would be unrealistic to expect society to make the changes necessary to achieve maximum energy efficiency all at once.
B. There are products, such as automobiles, that consume energy at a sufficient rate that persons who purchase and use them will become conscious of any unusual energy inefficiency in comparison with other products in the same class.
C. Whenever a new mode of generating energy, such as a mew fuel, is introduced, a number of support systems, such as a fuel-distribution system, must be created or adapted.
D. When energy prices rise, consumers of energy tend to look for new ways to increase energy efficiency, such as by adding insulation to their houses.
E. (E) Often the purchaser of a product, such as a landlord buying an appliance, chooses on the basis of purchase price because the purchaser is not the person who will pay for energy used by the product.

[单项选择]

Today, more and more people are using credit cards instead of money to buy the things they need. Almost anyone who has a steady income and a continuous work record can apply for a credit card. If you have a credit card, you can buy a car. have a dinner, take a trip, and even get a haircut by charging the cost to your account. In this way you can pay for purchases a month or two later, without any extra charge. Or you may choose to spread out your payments over several months and pay only part of the total amount each month. If you do this, the credit card company or the bank who sponsors the credit card will add a small service charge to your total bill. This is very convenient for the customer. With the credit card in your wallet or purse, you don’t have to carry much cash. This saves you trips to the bank to cash checks or draw cash. Also if you carry credit cards instead of a lot of cash, you don’t have to be concerned about losing your money through carelessness o
A. Membership fees for credit card users.
B. A heavy fine for overdue payments.
C. Service charges for stores that accept credit cards.
D. Service charges for card users who pay back over a period.