[单项选择]Alarm clocks needlessly wake ____ households. I want to design something targeted at the individual sleeper.
A. whole
B. total
C. full
D. high

[单项选择]—How can I wake up so early
—Set the alarm at 5 o'clock，______ you'll make it．
A. but
B. or
C. and
D. so

[单项选择]I am sorry I（） your glasses off the desk when I was wiping it.
A. hit
B. knocked
C. struck
D. drew

[单项选择]（）I was talking to Barbara, I learned that Tony was in hospital.
A. Unless
B. While
C. Since
D. Once

[单项选择]I didn’t tell him ______ news at once because I wanted to give him surprise.
A. a, a
B. the, the
C. the, a
D. /, the

[单项选择]The alarm clock didn't ring this moming. I （　） it last night.
A. did forgotten to wind
B. may have forgotten winding
C. ought to have forgotten to wind
D. must have forgotten to wind

[单项选择]The alarm clock didn't ring this morning. I （） it last night.
A. did forgotten to wind
B. may have forgotten winding
C. ought to have forgotten to wind
D. must have forgotten to wind

[单项选择]It [sleepiness] filled my brain like a cloud. I was going, going...（）
A. I was almost overcome by sleepiness and would doze off any moment.
B. I was trying hard to beat back sleepiness so that I could keep moving.
C. Due to sleepiness, I was not aware that I had lost my sense of direction.
D. Sleepiness clouded my mind and I was unable to see or hear clearly.

[单项选择]I bought an alarm clock with a(n) ______ dial, which can be seen clearly in the dark.
A. supersonic
B. luminous
C. audible
D. amplified

[单项选择]The dentist's confident manner ______ me that I was in safe hands.
A. assured
B. ensured
C. insured
D. sured

[单项选择]I like climbing mountains（　） my brother prefers water sports.
A. as
B. while
C. when
D. for

[单项选择]—（　）are you trying to prove to police
—Where I was last night.
A. What
B. Why
C. How
D. When

[多项选择]关于公式(WA×HLBA+WA×HLBA)/(WA+WB)下列说法正确的是
A. 离子型表面活性剂混合物的HLB计算公式
B. 是混合乳化剂的HLB的计算公式
C. 只是非离子表面活性剂混合物的HLB计算公式
D. 只是混合乳化剂的HLB的计算公式
E. 只是离子型表面活性剂的HLB计算公式

[单项选择]I don't know him, but it is ______ that he is a warm-hearted person.


A. talked
B. said
C. told
D. spoken

[单项选择]The door was ______ and I could not see who she was talking to
A. shut
B. shutted
C. shutting
D. being shut

[单项选择]（　） looked up in alarm.
A. All the present women
B. All the women present
C. The all women present
D. The all present women

[单项选择]The newly installed alarm system, which is directly connected to the police, will go off if the correct security code is not entered （） 60 seconds of touching the keypad.
A. only
B. under
C. within
D. directly

[单项选择]

A United Nations report is sounding an alarm on the state of the earth’s natural resources, in advance of this month’s U. N. sponsored sustainable development summit (峰会) in Johannesburg.
The report says sea levels rose and forests were destroyed at unprecedented (前所未有的 ) rates during the last decade. It notes that more than 40 percent of the world’s population— two billion people—now faces water shortages. And it predicts that with the global population expected to increase from six billion to eight billion people over the next 25 years, further environmental stress is expected. U. N. Under Secretary General Nitin Desai says the most important message in the report is that the world’s environmental crises are interrelated. As an example, he cites the "Asian Brown Cloud", a "poisonous cocktail" of particulate (微粒的) matter, chemicals, and various aerosols (浮质), currently hanging over a vast area of southeast Asia.
A. Speak to.
B. Make a formal speech to.
C. Deal with.
D. Make use of.