在英語大作文的第二段中，可以使用以下連接手段：

1. 表示轉(zhuǎn)折的連接詞：however, nevertheless, nonetheless, on the other hand等。

例如：However, some people argue that technology has made our lives easier and more convenient.

2. 表示因果關(guān)系的連接詞：because, since, as a result, therefore, thus等。

例如：As a result, many people have become more aware of the importance of environmental protection.

3. 表示遞進(jìn)關(guān)系的連接詞：furthermore, in addition, moreover, not only...but also等。

例如：Furthermore, the government should take more measures to reduce pollution and promote sustainable development.

4. 表示比較和對比的連接詞：similarly, likewise, on the contrary, in contrast等。

例如：On the contrary, some people believe that technology has brought more harm than good to our society.

5. 表示總結(jié)和歸納的連接詞：in conclusion, to sum up, in summary, therefore等。

例如：To sum up, we need to strike a balance between the benefits and the drawbacks of technology.