Key to Unit 1
Extended Reading Skills and Practice
1. The ability to delay reward.
2. D）
Extended Writing Skills and Practice
1. 1) simple sentence 2) compound sentence 3) compound sentence 4) complex sentence 5) simple sentence 6) complex sentence 2.
1) Part-time jobs are useful for full-time students because they not only earn money but also gain career experience. 2) Old people are unlikely to assume physically demanding tasks although there are many jobs that are especially suitable for old people such as consultants, doctors and psychologists. 3) I like tea while my sister likes coffee.
4) More people who have received higher education should earn more money. 5) Study hard and you will make a remarkable progress.
6) There are too many examinations nowadays for college students which are too difficult.
Review and Test (1) Part I (略) Part II
1. Y 2. Y 3. NG 4. N 8. his major
9. public institutions
5. N 6. N 7. Y
10. deciding which students to accept
Part III
11-15 DBADC 16-20 ADDBC 21-25 ADCAD 26-30 ADCBD 31-35 DBDCD (36) focused (37) emotionally (38) distant (39) disease (40) cancer (41) retirement (42) crossed (43) increasingly (44) you can make a number of important changes in your current lifestyle (45) We know much more about how to keep healthy today than our parents (46) And this new knowledge can be passed on to our children Part IV
47-51 HMJEF 52-56 BOGNL 57-61 DBCDB 62-66 CDACB Part V
67-71 ACBBD 72-76 DABBC 77-81 ACCBD 82-86 DBACD Part VI
87. having interest 88. looked back
89. change their minds 90. filled with admiration
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91. shares what she has with others
Key to Unit 2
Extended Writing Skills and Practice Practice for Number of Nouns 1. buses foxes boys
trees
lives teeth people
deer milk women branches
fish feet brooms families
days cities horses juice oxen
zoos leaves mice water countries
2.
1) children 2) women teachers 3) Germans; Germany 4) Chinese; Germans 5) milk Practice for Articles 1.
1) a; an; the 2) a; an 3) An; a 4)The; the; a 5) a 6) the 7) a; The 8) The; the 9)The；the; × 10) a 2.
1)-5) B ACCA 6)-10) CBCAD
Review and Test（2） Part I (略) Part II
1. Y 2. Y 3. NG 4. Y 5. N 6. N 7. N 8. self-reliance 9. half a million 10. doubtful Part III
11-15 BCABC 16-20 DACAC 21-25 DBDBA 26-30 ADCBC 31-35 ADCBD (36) reflections (37) waking (38) recognize (39) biological (40) action (41) unfamiliar (42) emotional (43) indoor (44) women in the workplace dream about bosses and colleagues (45) angry people act out their anger in their dreams
(46) Creative people often use their dreams to solve problems Part IV
47-51 DBALK 52-56 OMJEC 57-61 BACDC 62-66 ADCBC Part V
67-71 CACBD 72-76 ACBDC 77-81 CACAD 82-86 CCDBB Part VI
87. was released from prison 88. is committed to
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89. worthy of doing 90. ran into someone
91. the pursuit of happiness
Key to Unit 3
Extended Reading Skills Practice Exercise 1:
desire; naturally; escape; diversity ; respect; establishing; characters Exercise 2:
taken up; check out; a wealth of; range; held across; activities; meet up with
Extended Writing Skills and Practice 1.
1)-8) DCCCDBAC 2.
1) have met 2) are phoning 3) would return 4) will have lived 5) has been 6) hadn’t locked 7) carries 8) have spent
Review and Test (3) Part I (略) Part II
1. A 2. B 3. C 4. C 5. C 6. D 7. A 8. offers geared towards students 9. contact the Student Union 10. second-year student of History Part III
11-15 AADBB 16-20 BCCAC 21-25 CAADB 26-30 DCBBD 31-35 CAABD (36) leisure (37) varies (38) hobbies (39) adventurous (40) fond (41) afford (42) entertaining (43) academic (44) students usually will feel more relaxed (45) invest their leisure time in studying
(46) spending leisure time studying is a pleasure of mind Part IV
47-51 CKDGL 52-56 BNIAO 57-61 DBCAC 62-66 BCCAA Part V
67-71 BCACB 72-76 DCADA 77-81 ACABB 82-86 BDDBC Part VI
87. he got the negative answer
88. it is important to keep well-balanced life 89. hung out in the street
90. spelling problem can also be related to the disorder 91. he denied knowing anything
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