一、主語

　　1. 句子要說明的人或事物。

　　2. 名詞、代詞、動(dòng)名詞、動(dòng)詞不定式、what從句、that從句、how從句等

　　3. 動(dòng)詞原形不能做主語。

　　練習(xí)：主語成分

　　1. Some towns, cities, regions(區(qū)域) and countries seem to have better education than others.

　　2. Fifty years ago in the UK, getting good grades and scoring high on tests were important but not critical(至關(guān)重要的) to life chances.

　　3. It is important to keep calm and carry on while working under pressure.(主語后置)

　　4. It is certainly true that scientists are gaining a clearer understanding of the outer space, thanks to many years of research and better data. (主語后置)[A1]

　　5. It is quite common these days for young people in many countries to have a break from studying after graduating from high school.

　　主語后置，避免頭重腳輕。是考官青睞的巨型。