Here are some self-correcting online exercises to help you learn link clauses in long sentences:
Another good idea is simply going to a monolingual dictionary and reading not only the entries (for “however” etc.) but also the info boxes that you can find below many entries (the following come from http://oald8.oxfordlearnersdictionaries.com/)
Usage note: however
Ways of saying ‘but’
Politicians have promised to improve road safety. So far, however, little has been achieved.
Despite clear evidence from road safety studies, no new measures have been introduced.
Politicians have promised to improve road safety.In spite of this/Despite this, little has been achieved so far.
Although politicians have promised to improve road safety, little has been achieved so far.
Some politicians claim that the new transport policy has been a success.In fact, it has been a total disaster.
Government campaigns have had a measure of success, but the fact remains that large numbers of accidents are still caused by careless drivers.
Usage note: although / even though / though
You can use these words to show contrast between two clauses or two sentences. Though is used more in spoken than in written English. You can use although, even though and though at the beginning of a sentence or clause that has a verb. Notice where the commas go:Although/Even though/Though everyone played well, we lost the game. ◇ We lost the game, although/even though/though everyone played well.
You cannot use even on its own at the beginning of a sentence or clause instead of although,even though or though:Even everyone played well, we lost the game.
Usage note: contrast
This survey highlights a number of differences in the way that teenage boys and girls in the UK spend their free time.
One of the main differences between the girls and the boys who took part in the research was the way in which they use the Internet.
Unlike the girls, who use the Internet mainly to keep in touch with friends, the boys questioned in this survey tend to use the Internet for playing computer games.
The girls differ from the boys in that they tend to spend more time keeping in touch with friends on the telephone or on social networking websites.
Compared to the boys, the girls spend much more time chatting to friends on the telephone.
On average the girls spend four hours a week chatting to friends on the phone.In contrast, very few of the boys spend more than five minutes a day talking to their friends in this way.
The boys prefer competitive sports and computer games, whereas/while the girls seem to enjoy more cooperative activities, such as shopping with friends.
When the girls go shopping, they mainly buy clothes and cosmetics. The boys, on the other hand, tend to purchase computer games or gadgets.
Language Banks at generally, illustrate, proportion, similarly, surprising
Usage note: similarly
This chart provides a comparison of the ways that teenage boys and girls in the UK spend their free time.
In many cases, the results for boys and girls are virtually the same/identical.
In many cases, the results for boys are virtually the same as/identical to the results for girls.
Both boys and girls spend the bulk of their free time with friends.
Most of the boys do more than two hours of sport a week, as do many of the girls.
Like many of the girls, most of the boys spend a large part of their free time using the Internet.
The girls particularly enjoy using social networking websites.Similarly, nearly all the boys said they spent at least two to three hours a week on these sites.
Language Banks at contrast, illustrate, proportion, surprising
Usage note: because of
The number of people with diabetes is growing, partly because of an increase in levels of obesity.
The number of overweight children has increased dramatically in recent years, largely as a result ofchanges in diet and lifestyle.
The increase in childhood obesity is largely due to/the result of changes in lifestyle and diet over the last twenty years.
Many obese children are bullied at school on account of their weight.
Part of the problem with treating childhood obesity stems from the fact that parents do not always recognize that their children are obese.
Childhood obesity may be caused by genetic factors, as well as environmental ones.
Language Banks at cause, consequently, therefore