有时为了使句子的连贯性更强, 表达也更为贴切、自然, 我们在两个或者多个简单句之间加上and, but, or(或者, 否则), for(因为), while(而, 却), when (就在这个时候), not only…but also等并列连词, 使其成为并列复合句。如： (1) Our outdoor activity will last 3 hours. We’ll be back at about 11 o’clock.
→Our outdoor activity will last 3 hours and we’ll be back at about 11 o’clock. (2) You must hurry. You’ll miss the plane.
→You must hurry or you’ll miss the plane.
(3) Honey is sweet. The bee stings.
→Honey is sweet but the bee stings. 在两个或者多个简单句之间加上when, after, as, because, where, which, who等从属连词, 可以使简单句变成复合句。如： (1) We will organize all kinds of activities in our English club. We can not only practise but also learn more English in the activities.（改为含定语从句的复合句）
→We will organize all kinds of activities in our English club in which we can not only practise but also learn more English. (2) He missed the first bus. He came to school late.(改为含状语从句的复合句)
→Because he missed the first bus, he came to school late.
→He missed the first bus, so he came to school late. 即时练习 将下列各组句子合并成并列复合句或主从复合句。 1. Your study becomes much more difficult. You have to work much harder. 1. Your study becomes much more difficult, so you have to work much harder. 2. We should be easy-going. We should be concerned for others. We want to be liked by others. If we want to be liked by others, we should be easy-going and concerned for others. 3. (1) Li Hua is a senior one student.
(2) She had to attend different enrichment classes
(3) She had to do a lot of homework during the summer vacation.
(4) This made her unhappy. (5) she wanted to relax herself. Li Hua, a senior one student, had to attend different enrichment classes and do a lot of homework during the summer vacation, which made her unhappy, as she wanted to relax herself. 4. (1)We high school students do have some growing pains.
(2)We can get rid of them correctly and wisely. We high school students do have some growing pains, but we can get rid of them correctly and wisely. 5. (1) Students attend enrichment classes during vacation.
(2) Students can improve their main subjects.
(3) Students make more friends. If students attend enrichment classes during vacation, they can not only improve their main subjects but also make more friends.
6. (1) I’ve made good preparations for exams. (2) I’m very stressed and nervous.
(3) I can’t fall asleep, control my temper or focus. (4)I even don’t want to eat. Though I’ve made good preparations for exams, I’m still so stressed and nervous that I can’t fall asleep, control my temper or focus and even I don’t want to eat. 7. (1) 79.3％ of the surveyed netizens say that their main motivation is to help their parents to live a better life.
(2) 67.7％ claim that they work hard in order to change their own fate. 79.3％ of the surveyed netizens say that their main motivation is to help their parents to live a better life while 67.7％ claim that they work hard in order to change their own fate. 8. (1) The job was hard and boring.
(2) The job seemed endless.
(3) The job made me very tired.
(4) I almost quit half way. The job was hard, boring and seemed endless, which made me so tired that I almost quit half way. 9. (1) Learning English well is a must.
(2) You hunt for a job.
(3) Your English level is very important. Learning English well is a must, as when you hunt for a job, your English level is very important. 10. (1) I have just received your letter.
(2) You express your concern.
(3) I join in too many after-class activities.
(4) These activities may have a bad effect on my study and future. I have just received your letter in which you express your concern that my study and future may be affected because I join in too many after-class activities.