We can’t afford to fall （)our competitors in using new technology.

We don't need heating system, ______.

A．and nor we can afford it

B．we don't afford it

C．nor can we afford it

D．nor can it afford

We can infer that the plumbing ______ at that time.

A. cost little

B. was more expensive than a water system

C. was too expensive for every family to afford

D. was not necessary

Sometimes online distance learning can be a problem because _________ .

A．learners can’t afford it

B．learners get too many hints

C．it involves excessive writing

D．it is not available at the weekend

A. you are lazy enough

B. you are busy enough

C. you haven't found the advantages of letters

D. you can't afford too many letters

Part BDirections:

In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list A-G to fit into the numbered blank when there are tow extra choices, which do not fit in any of the gaps. Mark your answers on ANSWER SHEET 1. (10 points)

At picnics, ants are pests. But they have their uses. In industries such as mining, farming and forestry, they can help gauge the health of the environment by just crawling around and being antsy.

It has been recognized for decades that ants—which are highly sensitive to ecological change—can provide a near-percent barometer of the state of an ecosystem. Only certain species, for instance, will continue to thrive at a forest site that has been cleared of trees. (41) And still others will move in and take up residence.

By looking at which species populate a deforested area, scientists can determine how "stressed" the land is. (42) Ants are used simply because they are so common and comprise so many species.

Where mine sites are being restored, for example, some ant species will recolonize the stripped land more quickly than others. (43) Australian mining company Capricorn Coal Management has been successfully using ant surveys for years to determine the rate of recovery of land that it is replanting near its German Creek mine in Queensland.

Ant surveys also have been used with mine-site recovery projects in Africa and Brazil, where warm climates encourage dense and diverse ant populations. "We found it worked extremely well there," says Jonathan Majer, a professor of environmental biology. Yet the surveys are perfectly suited to climates throughout Asia, he says, because ants are so common throughout the region. As Majer puts it: "That's the great thing about ants."

Ant surveys are so highly-regarded as ecological indicators that governments worldwide accept their results when assessing the environmental impact of mining and tree harvesting. (44)

Why not？ Because many companies can't afford the expense or the laboratory time needed to sift results for a comprehensive survey. The cost stems, also, from the scarcity of ant specialists. (45)

[A] This allowed scientists to gauge the pace and progress of the ecological recovery.

[B] Yet in other businesses, such as farming and property development, ant surveys aren't used widely.

[C] Employing those people are expensive.

[D] They do this by sorting the ants, counting their numbers and comparing the results with those of earlier surveys.

[E] The evolution of ant species may have a strong impact on our ecosystem.

[F] Others will die out for lack of food.

[G] Gretaceous ants shared a couple of wasp-like traits together with modern ant-like characteristics.

第41题：

(41)

A.I’m afraid not

B.That’s nothing

C.Well done

D.I’d like to

Not a single company can dominate．the industry because __________．

A.people resist standardization

B.parents want to reduce the wedding cost

C.many couples can’t afford more than the price of a hamburger

D.family members are surprised at the complicated alTangements

The word "clients" in this passage means ______.

A．people who can pay high fees to their lawyers

B．people who are very poor and can't afford to pay their lawyers

C．people who have been cheated by stores or threatened with eviction

D．people who needs and uses legal help from lawyers

A.I'd like to

B.I'd better go

C.I didn’t want to

D.I wouldn’t

Customer: Have you got Michelle's latest CD album？ Salesman: ______

A．No. I don't care for singer's photographs.

B．No. It has been sold out.

C．Yes. They don't have it anymore.

D．Yes. I can't afford one.

James: Hey, Eileen, this handbag is a real bargain. It's only $ 24.95.

Eileen: Only $ 24. 95？ ______

A．You have money.

B．It costs a tot.

C．I don't think I can afford it.

D．It's worth the money.