[单项选择]When a pencil is partly in a glass of water, it looks as if it （　）.
A. breaks
B. has broken
C. were broken
D. had been broken

[单项选择]When a pencil is partly in a glass of water, it looks as if it ______.
[A] breaks [B] has broken [C] were broken [D] had been broken

[单项选择]When a pen is partly in a glass of water, it looks as if it ______.
A. breaks
B. has broken
C. were broken
D. had been broken

[填空题]We all scream for water when thirsty, but do you know in very hot, dry weather, plants also make{{U}} (36) {{/U}}sounds as if they are crying out for help You see, in a plant stem there are hundreds of water pipes that bring water and{{U}} (37) {{/U}}from the soil all the way up to the leaves. As the ground{{U}} (38) {{/U}}dry, it becomes harder and harder for the plants to do this. In{{U}} (39) {{/U}}draughts, plants have to fight to pull out any water{{U}} (40) {{/U}}. Scientist Robert Winter has found out that when it is really bad their water pipes snap(绷断) from the{{U}} (41) {{/U}}like rubber bands. When that happens, the whole plant vibrates(振动)a little. The snapping pipes make noises ten thousand times quieter than a{{U}} (42) {{/U}}. Robert knows that healthy,{{U}} (43) {{/U}} plants are quiet.{{U}} (44) {{/U}}. How do the insects know which are healthy plants and which are not Robert thinks that the insects may listen for the plants that cry and then they m

[单项选择]She says we should save water when ______.
A. washing cars
B. cleaning clothes
C. taking a bath
D. washing fruits and vegetables

[单项选择]Steam ______ into water when it touches a cold surface.
A. shrinks
B. contracts
C. condenses
D. compresses

[单项选择]A. A bottle of orange juice.
B. A glass of water.
C. A cup of tea.

[单项选择]Please （） the water tap when you have finished your washing.
A. turn on     
B. turn off      
C. turn out   
D. turn over

[单项选择]

From: Mitchell Glass ＜mglass@popmail.net＞
To: Lois West ＜lois-west@wec.com＞
Subject: Many thanks
Dear Ms. West,
I would like to thank you for taking the time to meet with me last Friday to discuss the current job opening in the engineering department at Wilford Electronic Components (WEC).
As I mentioned, I am particularly interested in the position in of assistant electrical engineer, as it offers a (21) work environment and opportunities for advancement.
I feel that my (22) educational background and my recent experience as a systems engineer with Altech Inc. closely match the requirement for the job.
WEC is a very impressive organization, and I would greatly appreciate the chance to contribute my own unique skills and perspective to its mission of providing electronics manufacturers with components of the (23) quality.
Thank you again for your consideration. I look forward to talking wit
A. relevant
B. confident
C. marginal
D. optional