5．The official is very cautious about expressing my opinions in public.

　　6．If only I could_speak (speak) five foreign languages.

　　7．It's time we put up the Christmas decorations (decorate) in the living room.

　　8．The company spent thousands of pounds launching (launch) a new travel service.

　　Ⅲ.选词填空

approve of， glance at， cater to， in correspondence with， with caution， reflect on， only if， all at once

　　1．Varieties of programmes in the TV station cater_to many different types of interest and taste among the public.

　　2．My mother doesn't approve_of my leaving school this year.

　　3．She glanced_at the alarm clock and realized she got up late.

　　4．A flashing yellow light means you may move forward with_caution.

　　5．The reality is not always in_correspondence_with one's expectations.

　　6．I always reflect_on life when listening to Beethoven's symphony.

　　7．All_at_once there was a tremendous clap of thunder that shook the whole house.

　　8．Only_if I get a job will I have enough money to go to school.

　　[本单元语言点温故练习]

　　Ⅰ.单句语法填空

　　1．Look at the time! We should have been at the theatre ten minutes ago.

　　2．If only I had_arrived (arrive) at the station five minutes ago.

　　3．While cooking (cook) in the kitchen, I heard the doorbell ring.

　　4．My secret is an old one, which I cannot share with anyone.

　　5．You should be optimistic about your future instead of feeling like a failure.

　　6．She has proved herself to_be (be) an honest and kind­hearted girl.

7．Mr. Smith can't have_gone (go) to Beijing, for I saw him in the library just now.