单词拼写（共10小题，每小题1分，满分10分）
小题1:Some metals expand when it is hot and c_____ when it is cold.
小题2:If you a____ a little salt to the soup, it will taste more delicious.
小题3:Everyone can get on well with him, because he is easy to________(接近).
小题4:They are making a _______ (调查） of the population growth of the city.
小题5:While I was doing my homework, the ______(电） went off.
小题6:Water is a _______ (液体）without color or taste.
小题7:Children should be ____(独立的）in doing things and don't always rely on their parents.
小题8:I______(集中）your mind on study, and you'll make progress.
小题9:What is the ______(平均的）rainfall for summer in your country.
小题10:Nowadays many old people don't like living d______ ,for it is very noisy.
小题1:contract
小题2:add
小题3:approach
小题4:survey
小题5:electricity
小题6:liquid
小题7:independent
小题8:concentrate
小题9:average
小题10:downtown
小题1:时态是一般现在式，contract动词，意思“缩小”
小题2:时态是一般现在式，add…to…固定句型，意思“往…加…”
小题3:be+adj+to do sth固定词组，意思“做某事…”，approach动词接近
小题4:make a survey固定句型，意思“做调查”，survey名词调查
小题5:the后面加名词，electricity名词电
小题6:冠词后跟名词，liquid名词液体
小题7:be动词后跟形容词，independent形容词解放的
小题8:时态是一般现在式，concentrate动词集中，主语不是第三人称单数，所以用动词原形
小题9:因为后面有名词rainfall，所以用形容词average平均的
小题10:downtown名词，商业区，live downtown意思“住在商业区”
点评：注意时态，看时间状语或者句子里原有时态，来决定该用什么时态；单复数，当主语是第三人称单数时，谓语动词加s或es；和一些固定搭配，要靠平时多积累；要正使用单词形式，形容词修饰名词，副词修饰动词。