When you get onto the Summon page, you will have the opportunity to change the language of the display - look in the top right hand corner.
To find articles on any subject you must first use databases which index periodicals like journals, magazines and newspapers. Connelly Library has many databases on different subjects, all of which are listed here in the Complete Database List. You can also search databases by Subject to see what one fits your topic.
Some good general databases with a great deal of fulltext are shown below: