大学英语精读（预备级）课后答案第一部分UNIT1.1) To lose weight, Katie substituted some low-fat foods for high-fat foods in her diet, for example, having fat-free milk instead of regular milk.2) Our science teacher drew a(n) analogy between the way water moves and the way light travels in waves.3) In a dictionary, the word “noun” is often represented by the letter “n”.4) It is interesting that different styles of dress can be associated with different types of music.5) AIDS is the biggest health challenge we have had to face this century.6) Coal can easily be converted to gas.7) Although people often say this is beautiful or that is beautiful, it is mot easy to define the concept of beauty.8) The famous TV producer successfully reduced the history of space travel to a 2-hour show.9) I have a(n) image in my mind of how I want my room to be.10) Jack carried bundles of old clothes and magazines to the garage sale.11) There are all beautiful photos. Its really hard for me to choose the best one.12) When asked where his mother was, the little boy pointed to the kitchen.13) John didnt marry Mary in the end. He married Julie instead.14) The best thing about traveling is that you can meet different people and learn about various customs.UNIT2.1） Ever since my brother took that job offer, he has been traveling back and forth, and we rarely talk these days.2) The rain was so heavy and the road so muddy that it took us all day to reach our destination.3) Computer terminals are seen everywhere in offices now.4) Students should pay attention to the distinction between formal and informal words when they are learning a foreign language.5) Since the final exam is drawing near, you are not supposed to play football after school.6) Lets make a(n) bet on who will be the first one to finish reading the book.7) He offered to take me for a ride in his car but I refused, because he is such a(n) rotten driver!8) We dont see any racial prejudice here: people of all skin colors seem to get on well with each other.9) As the train came near, people waiting on the platform picked up their bags and got ready to board.10) Even if you cant afford to stay in a 5-star hotel, you can still find clean and inexpensive accommodation.11) What a delight to walk along the river on a sunny afternoon!12) Because of traffic problems above ground, many people in Shanghai ride the subway to work.13) He pretended to read a newspaper, but in fact he was observing the young girl who had just entered the teahouse.14) The ever increasing housing price forces young couples to buy apartments away from the city center.15) We welcome your valuable suggestions for improving our service.UNIT4.1)Dick wrote a letter of apology to his girlfriend and begged her to forgive his rudeness.2)The patient has responded to the drug and is recovering quickly.3)The two countries have enjoyed a friendly relationship with each other for a long time.4)His present job does not suit his abilities.he may do better at marking.5)Fighting with fists is not a good way to settle an argument.6)Under police questioning,he finally spilled out the teuth of what had happened that night.7)The beautiful sunny morning put me in a happy mood.8)The government called on people to hold on to the tradition of respecting the old.9)The appearance of the superstar drew tremendous applause.10)The young parents scolded their child because he spoke rudely to the guest.11)When people heard that he was raising his younger sister single-handedly,they were so touched that they gave money freely to help him.12)I want very much to thank youve done for me,but words fail me.Unit51) The Chinese new year seems to have lost its attraction as an important event of the year.2) Im tired of this routine job of answering phones and ordering takeout food. I need some excitement.3) She hurried away as soon as she received a message from her husband.4) Some neighbors who have detected the smell of gas from the apartment called911.5) The saleswoman spoke in such a rude manner that i decided not to buy anything from her.6) During the sars outbreak, devices for taking peoples temperature without actually touching the human body sold very well.7) The ability to encourage others is essential to a leader.8) Human beings very often take action without thinking about the impact on the environment.9) The internet enable us to get information faster than ever.10) Regular exercises and a healthy diet enable people to live longer.11) Prof. Hogworths major research interest is the common characteristics shared by twins. UNIT7.1) The 20th century is remarkable for its inventions.2) I think Ill just pop into this pub for a quick drink.3) Crops may suffer if temperatures dip below freezing.4) I took off my coat and hung it on the peg.5) Mrs. Eber wouldnt let her cat outside for fear that it would be hit by a car.6) The