Ⅱ.阅读理解

　　The crops we produce in the UK and around the world could change with climate.The weather is an important part in farming and changes in temperature will strongly affect crops’ growth.

　　For the UK，temperature rises look likely to mean the crops normally growing in the south of the country will be able to be grown further north.The UN believes there will be a shift northwards of between 200 and 300 kilometers for every degree of warming.This would be similar to the south of England in 2060，having the kind of weather the Loire Valley，in France，experiences now.

　　Due to an increase in drought and heat waves，the types of crops grown in the UK will have to change，which doesn’t have to be a bad thing for us.Products which haven’t been farmed over here before，such as sweet corn，sunflowers，and maize for cereals，could all provide new business for farmers—certainly in the southeast.

　　However，if farming practices do change in this country，procedures will have to be put in place beforehand as introducing something new to farmland involves a lot of preparations.Also，irrigation systems may need to be improved so that rain from winter can be stored for summer as it is hot.

　　Researchers are already finding those pests，such as aphids，which are starting to hatch earlier in the year.In the last 10—15 years they’ve been arriving in spring time and the population of aphids appears to be growing，too.

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