题目内容：

    In the 1990s Vietnam faced a terrible problem: many children in their country were malnourished(营养不良的).The government approached Jerry Sternin, who was at the time working for Save the Children in the USA, to set up an office in Vietnam. Jerry moved his family to Vietnam but when he arrived he discovered that not everyone in the government saw hope and appreciated his presence. He was told by his sponsor in the Foreign Affairs Department that they had 6 months to make a difference.

Now Jerry had read the research and it was clear that big issues such as poverty and water cleanliness were major factors. Jerry put these findings into a bucket(桶)he called ''true but useless". He wasn't about to change poverty or how clean Vietnam's water was. Instead he set about finding examples where things were working.

Jerry set off to visit villages across the country. He asked people whether they knew of families who had children of a healthy weight even though they had access to the same resources as everyone else. And the answer was always ''yes". They all seemed to know of some families where the kids were doing much better than most. So he visited these families and observed how the mothers fed their children. Over time a pattern came into view. Mothers of children with a healthy weight did four things differently from the rest.

What happens next illustrates Jerry Sternin's talent. Instead of racing down the street screaming about his findings and advocating everyone with malnourished kids adopting these four behaviours, Sternin identified 50 families in 14 villages who could benefit and then took groups of 10 mothers to cook with the mothers with the healthy kids. They practiced together and learned a new way of behaving.

After 6 months 65% of the children were better nourished and stayed that way. Throughout the 90s this approach benefited 2. 2 million children in 265 villages and became the standard approach to fixing child malnutrition in Vietnam.

1.From the passage we can see that when Jerry got to Vietnam .

A.he found the problem was too difficult for him to solve

B.he felt some people in the government doubted his ability

C.he spent 6 months staying with families of the unhealthy children

D.he brought with him the treatment for malnourished children there

2.What did Jerry believe was the key to solving the problem?

A.Changing poverty.

B.Reading about research.

C.Cleaning drinking water.

D.Finding a healthy pattern.

3.In what way were families with healthy children different from others?

A.How they were fed. B.How they were educated.

C.How much they exercised. D.How wealthy they were.

4.What played a key role in solving the problem?

A.Jerry Sternin's devotion to work.

B.Jerry Sternin's team spirit.

C.Jerry Sternin's choice of the right method.

D.Jerry Sternin's wide range of knowledge.