As Goldman had hoped, the carts were soon attracting larger and larger numbers of customers to his market. But not only did more people come — those who came bought more. With larger easier­to­handle baskets, customers unconsciously bought a greater number of items than before.

　　Today?s shopping carts are five times larger than Goldman?s original model. Perhaps that?s one reason why Americans today spend more than five times as much money on food each year as they did before 1937 — the coming of the shopping cart.

　　5．What do the underlined words “chrome­plated contraptions” in the first paragraph refer to?

　　A．Baskets.

　　B．Private cars.

　　C．Suitcases.

　　D．Shopping carts.

　　解析：选D　词义猜测题。根据画线词前的“... a part of his or her life behind a shopping cart.”可以得出，画线词的意思是购物手推车。

　　6．What was the purpose of Goldmans invention?

　　A．It was to prove him to be a good inventor.

　　B．It was to reduce the burden of his employees work.

　　C．It was to make shopping easier and attract more business.

　　D．It was to help the disabled make shopping easily in his market.

　　解析：选C　细节理解题。根据第三段中的“... make shopping much easier for his customers, and would help to attract more business.”可知，C项正确。

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