Answer:
1. The Tour de France is the world's largest annual sporting event and the most prestigious cycling race on earth.
2. It has existed for more than a century and within France it is seen as an emblem of the country itself.
3. Over 20 subsequent days, almost 200 men in 9 teams cycle more than 2,000 miles, averaging more than 100 miles per day.
4. The Grand Départ or Big Start is the opening of the first day's racing, an event which frequently occurs outside France itself.
5. As the race progresses, the sides of the roads are lined with millions of spectators, each hoping to catch a glimpse of the famed yellow jersey which is worn by the current race leader.
6. And aside from those who can physically attend, a combined audience of more than three billion people watch le Tour on TV across nearly 190 countries.
Step-by-step explanation:
When it comes to tasks such as this one, you need to pay attention to the type of information sentences or paragraphs contain and how they're connected to each other.
The sentence that summarizes the information in the paragraph is called the topic sentence. It's usually the first sentence of the paragraph. The topic sentence here would be: The Tour de France is the world's largest annual sporting event and the most prestigious cycling race on earth. It is the best introduction to what the rest of the sentences will be telling us about.
The rest of the sentences are organized based on how broad the information they contain is. The second one tells us about Tour de France itself (the broadest concept), the third provides us with some basic information about it (less broad), and the rest tells us about the details, such as the stages of the race and the audience (the least broad).