翻译句子：（每小题2分，共10分）
小题1:就是因为下雨我们才推迟了运动会。（用强调句）
小题2:毫无疑问地球在变暖，我们必须采取措施来解决全球变暖的问题。
小题3:让我们失望的是，我们正要爬山，就在这时下雨了。( be about to …when…)
小题4:我认为帮助那些在困境中的人是我们的责任。（用it做形式宾语）
小题5:他迷上了电脑游戏，这让他的妈妈很着急。(用定语从句)
小题1:It was because of the rain that we put off the sports meet.
小题2:There is no doubt the earth is becoming warmer and we must take some measures to solve the problem of global warming.
小题3:To our disappointment, we were about to climb the hill when it began to rain.
小题4:I think it our duty to help the people who are in trouble.
小题5:He has been addicted to computer games, which makes his mother very worried.
小题1:用强调句It was +强调部分+that…. 这句话强调的是because of the rain，推迟put off
小题2:毫无疑问There is no doubt…..,“采取措施”take some measures to do
小题3:让我们失望的是To our disappointment, “正要….就在这时”用be about to …when…小题4:think it +名词或形容词+to do sth“认为做某事…”，“在困境中”用in trouble.
小题5:“迷上了”是be addicted to, 这让他的妈妈很着急。which makes his mother very worried. Which指代前面的句子