1. Generally speaking, the three lines in the diagram fluctuated a lot.
>> This is too general and you should never use the word line/lines.
>> It does not clearly state a trend. Simply stating that something rose dramatically or fell rapidly is not enough as this is too descriptive. You must state which categories fell and which rose. Also, you should never refer to the different categories as lines. It is always necessary to explain what is changing (rising or. falling) by referring to what the figures represent. For instance, if you write about a diagram showing the rates of consumption of three types of fast food - pizzas, hamburgers, fish and chips, you cannot write:
Generally speaking, while pizzas fell, hamburgers and fish and chips rose
>> Generally speaking, while consumption of pizzas fell, the figures for hamburgers and fish and chips rose.
2. It can be dearly seen that, while sales for all categories rose over this time period, figures for Windows were usually higher than the other two.
>> This is a good general statement showing trends and which category was higher.
>> This clearly states not only a trend of movement (in this case sales in all categories rose) but also a trend of quantity (sales in one category - Windows - were usually higher than the other two).
3. In general, all three categories went up over this time period.
>> This shows a trend but uses the word up which is seen as too informal.
This general statement does state a trend of movement, but it does this by using the informal expression went up. Never use the words up or down because they are seen as being too informal.
4. Revenue for Windows was nearly always higher than the other two categories, Google and iPod, over a three-year period from 2004 to 2006.
>> This focuses on one category having a higher revenue than the other two but repeats information contained in':the introduction.
>> This general statement does state a trend of quantity, but at the end of the sentence, the phrase over a three-year period from 2004 to 2006 is probably repetition of information contained in the introduction. There is no need to state this twice. You could, however, say:
"Revenue for Windows was nearly always higher than the other two categories Google and iPod, over the same period of time."
5. An overview of this diagram shows that Windows climbed gradually and fell at the end, Google went up dramatically and iPod fluctuated a lot.
>> This is too general
6. A closer look at the diagram highlights the fact that the revenue for all three categories, Windows, Google and iPod, rose over this period of time.
>> This is a good general statement that explains the trend of three categories.
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Generally speaking, despite the occurrence of fairly extreme fluctuations in UFO sightings, figures decreased over this time period (Intro dùng over an 11-year period from 1997 to 2007)
The table compares and contrasts data on the changes in the emission of CO2 in five different countries as a result of the production of energy and their relative ranks over a 21-year period from 1985 to 2005.
In general, CO2 levels for all countries rose over this time period with the notable exception of Japan which remained the same.
No time period: largest and smallest or categorize into two or three new groups
In general, the city with the largest population was in Asia, whereas the smallest city was in Europe. More specifically, Beijing had the largest population with 10.1 million people, making it just under three times larger than the smallest city, Berlin, with 34 million residents.
1. The two most expensive apartments are to be found in Europe, but the cheapest is in Asia.
2. Illiteracy levels are higher in the develbping countries but lower in the developed countries.
3. The longest and the shortest railway systems are both in Asia, but the oldest is in Europe.
Results of a questionnaire showing how many times teenagers in Australia use an iPod in a week to play videos in 2009.
The pie chart compares and contrasts data on how frequently iPods were used by Australian teenagers per week in 2009 to watch videos.
In general, more than half of the teenagers surveyed did not use an iPod to watch videos while the rest frequently used them for this purpose.
The percentage of deaths from heart disease and cancer and calories consumed from unrefined plant foods.
In general, the less developed countries eat more unrefined vegetables and also have less heart disease and cancer deaths than the developed countries.
However, in this diagram, we can see a very obvious relationship between the two factors. As one decreases, the other increases. This is referred to as a negative correlation. If one factor increases as the other increases, we could write about a positive correlation. Be careful and do not just assume that as one factor changes, it has an effect on the other. For example, you can write:
The bar chart compares and contrasts data on the relationship between heart and cancer fatalities and the amount of unrefined vegetables eaten in 12 countries around the world.
In general, there is a very clear negative correlation between the two factors as people eat more unrefined vegetable, the rate of heart disease and cancer incidence falls.
You cannot write
In general, there is a very clear negative correlation between the two factors as the rate of heart disease and cancer incidence falls people eat more unrefined vegetables.
As the idea is the consumption of more vegetables reduces heart disease, NOT people eat more vegetables because they are dying of heart disease. This might be partly true but would not explain what is a more obvious connection between eating healthy food and a healthy body.
The bar chart compares and contrasts data on the literacy rates for both men and women in six developing countries over an 11-year period from 1990 to 2000.
In general, both men and women experienced increased levels of literacy in this time period.
The two charts provide data on changes in the number of car accidents, over a four-year period from 1997 to 2000, and figures for the number of deaths per 100,000 people in 2000 in eight countries.
In general, the number of road accidents increased in most countries with the highest frequency of deaths in Algeria.
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