andexplain how the use of them alters the relationship between the two clauses.
Model:
Tom played chess. Ann went shopping.
a) Tom played chess, so Ann went shopping. "Tom played chess" first, and as a consequence, "Ann went shopping".
b) Tom played chess, for Ann went shopping. "Ann went shopping" first, "Tom played chess" because, possibly, he didn't have anything else to do, because "Ann went shopping."
1. Mark did very well on his job interview. He didn't get the position. 2. We thought we might go to see a film. We might have dinner out. 3. The dictionary contains definitions of words. It also contains a great deal of other information. 5. Some animals are endangered. Many people are working to protect them. 6. I have studied German for many years. My German-speaking friends can chat easily with me now. 7. The doctors looked at the x-rays. They decided to operate on the patient. 8. John invested a lot of money in the business. The business went bankrupt. 9. We needed some food for the week. We went to the supermarket. 10. Janet doesn't like sushi. She doesn't like any kind of fish. 11. The students didn't prepare for the test. They didn't realize how important the test was. 12. You are quite intelligent. However, you don’t think before you act. 13. Peter doesn't need to buy a new car. He also doesn't need to go on vacation. 14. The library is a quiet place to study. 15. Many students prefer to study at home. We wanted to visit our friends, but we didn't have enough money to get a flight. 16. Mary thinks she should go to school. She wants to get qualifications for a new profession. 17. The dangers of smoking are well known. Many people continue to smoke anyway. 18. Angela said she might buy him a watch. She might give him a gift certificate. 19. He must have lost his key. He knocked on the door for us to let him in. 20. Wear your seatbelt. You might be injured.
Exercise 6.In most of the lines in the following text, there is a punctuation mistake. Find the mistakes and correct them. Write the correct punctuation mark in the space provided. If you think a line contains no mistake, put a tick (√) next to it.
Exercise 7.Insert the punctuation marks into the sentences below.
1. Some readers contribute funds to private libraries these readers use the library without charge. 2. The power failed for the third time that day and once again we sat in darkness. 3. The handwriting was almost illegible the spelling was very poor throughout the paper. 4. The ancient spirit is not dead old times are still breathing there is still strength and dignity in life. 5. You have to write that paper tonight or you will almost certainly lose points for turning it in late. 6. Most house plants prefer lots of sun and plenty of water others like shade. 7. I have been in the meadows all day and I have gathered there these beautiful flowers. 8. He did not take the money for it was not the right thing to do. 9. Debby left home early but she wasn't able to make it to her class on time because the buses were running late. 10. Some say that all of us want change jobs about every ten years meanwhile we should make the best of our present employment. 11. It was still cold but the rain had stopped. 12. Lewis had been well trained by scientists in Philadelphia and he was a curious man by nature. 13. Mike has a talent for fixing bicycles likewise his brother is very proficient at building motorcycles. 14. My daughter wants to be a computer programmer so she spends all her spare time on the computer. 15. Linda wanted to see Chinatown yet her husband chose Granville Island. 16. They couldn't make it to the summit and back before dark so they decided to camp for the night. 17. The dog came rushing in so the cat ran upstairs.