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单选题
What are the symptoms of sun stroke?（）
A
Temperature falls below normal，pulse is rapid and feeble，skin is cold and clammy
B
Temperature is high，pulse is strong and rapid，skin is hot and dry
C
Temperature is high，pulse is slow and feeble，skin is clammy
D
Temperature falls below normal，pulse is rapid，skin is clammy
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参考解析
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更多 “单选题What are the symptoms of sun stroke?（）A Temperature falls below normal，pulse is rapid and feeble，skin is cold and clammyB Temperature is high，pulse is strong and rapid，skin is hot and dryC Temperature is high，pulse is slow and feeble，skin is clammyD Temperature falls below normal，pulse is rapid，skin is clammy” 相关考题
考题
What are the complications of a stroke? ()
A、Confusion and speech disturbances.B、Contractures and pain.C、Urinary incontinence and urinary infection.D、Same posture continuously.
考题
What are the factors pre－disposing to stroke? ()
A、Hypertension.B、Diabetes.C、Cigarette smoking.D、Excessive consumption of alcohol.
考题
What kind of diseases might be infected by blood transfusion? ()
A. AIDSB. fluC. hepatitisD. stroke
考题
Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because________.A.The direction of pressure on the journal in four-stroke engine is continuouslyB.positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engineC.four-stroke engines usually utilize a heavier grade of oil than tow-stroke enginesD.Low-stroke engines usually consume less lube oil than four-stroke engines
考题
If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two stroke/cycle diesel engine will develop approximatelyA.the same indicated horsepower as a four-stroke/cycle engineB.twice the indicated horsepower as a four-stroke/cycle engineC.one half the indicated horsepower as a four-stroke/cycle engineD.one power stroke for every two crankshaft revolutions
考题
二、考题解析
【教学设计】
Teaching aims:
Knowledge aims:
Students will know about the relation between shadow and the sun through reading the passage.
Students will master the usage of comparative degree in the reading.
Ability aim:
Students will apply the comparative degree to retell the story.
Emotional aim:
Students will be more interest in learning English.
Key and difficult point:
Key Point: Students will master the usage of comparative degree in the reading.
Difficult Point: Students will apply the comparative degree to retell the story.
Teaching procedure:
Step 1: Warming-up
1. Greetings.
2. Play a riddle--it rises up and goes down every day, what is it? and students guess it’s the sun, then lead to the story about the sun.
Step 2: Pre-reading
According to the word “sun”, students have a brainstorm about what natural phenomenon about sun they have known.
Step 3: While-reading
1. Fast reading: students read the passage fast and figure out what the tree and the duck are talking about.
2. Careful reading: students read the passage carefully and answer the question: why does the shadow get longer when the sun gets lower? And underline the words with “er”.
3. The teacher explains the words with “er” to the students.
Step4: Post-reading
1. Students work in pairs to make a role-play (one is the little duck, the other is the old tree) to make a conversation according to the passage.
2. Students work in groups to find the real reason why the shadow gets longer when the sun gets lower.
Step5: Summary and Homework
Summary: ask a student to conclude the content of the lesson and summarize with the whole class.
Homework: students tell the story to their parents.
Blackboard design:
1.Do you think repeated practice is suitable for English learning?
2.What do you think of English class activities such as role-play?
考题
单选题What is the primary purpose of this passage?A
To alert people to the dangers posed by the sun.B
To discuss conditions on earth in the far future.C
To present a theory about red giant stars.D
To describe changes that the sun will go through.
考题
单选题What is the speed of the crankshaft in a four-stroke/cycle engine when the camshaft is turning at 750 rpm?（）A
375 RPMB
500 RPMC
750 RPMD
1500 RPM
考题
单选题When the sun becomes a red giant, what will conditions be like on Earth?A
Its atmosphere will freeze and become solidB
It will be enveloped in the expanding surface of the sun.C
It will become too hot for life to exist.D
It will be nearly destroyed by nova explosions.
考题
单选题When an air started, four-stroke/cycle diesel engine is being cranked, the starting air is admitted to each cylinder during what would normally be the（）A
intake strokeB
compression strokeC
power strokeD
exhaust stroke
考题
单选题In describing engine operation, what does the term “cycle” mean?（）A
The sequence of events that produce a power pulseB
One rotation of the engine crankshaftC
One stroke of a pistonD
All of the above
考题
单选题The size of the exhaust valve opening is （）A
most critical in a four-stroke cycle diesel engineB
most critical in a two-stroke/cycle diesel engineC
most critical in a four-stroke/cycle diesel engine if it is turbochargedD
of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
考题
单选题Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because（）.A
The direction of pressure on the journal in four-stroke engine is continuouslyB
positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engineC
four-stroke engines usually utilize a heavier grade of oil than tow-stroke enginesD
Low-stroke engines usually consume less lube oil than four-stroke engines
考题
单选题What color exhaust will be exhibited when a slow speed two-stroke/cycle main propulsion diesel engine, designed to operate on light and heavy fuel oil, is operated on insufficiently preheated heavy fuel oil?（）A
WhiteB
BlackC
BlueD
Clear
考题
单选题Symptoms of heat stroke are（）.A
cold and moist skin，high body temperatureB
cold and dry skin，low body temperatureC
hot and moist skin，high body temperatureD
hot and dry skin，high body temperature
考题
单选题Scavenging in a four-stroke/cycle diesel engine occurs during the （）.A
last part of the exhaust stroke, and the first part of the intake strokeB
last part of the intake stroke onlyC
early part of the injection stroke onlyD
early part of the power stroke
考题
单选题What does Mr. Martinez say about himself?A
He is applying for a managerial position.B
He might benefit from the article’s advice.C
He suffers from the symptoms of stress.D
He recently had an article published.
考题
单选题Which of the following is the best version of sentence 9 (reproduced below)?Additionally, there is no cure and because there’s n no cure doctors treat the symptoms.A
However, doctors treat the symptoms with the cure for CFS.B
Currently, doctors treat the symptoms because there is no cure for CFS.C
But doctors know there is no cure and because of that they treat the symptoms.D
Since there is no cure for CFS, doctors treat the symptoms without the cure.E
When there are symptoms, doctors treat them without the cure for CFS.
考题
单选题In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.A
two crankshaft revolutions in a two-stroke/cycle engineB
two power strokes in a two-stroke/cycle engineC
one power stroke in a two-stroke/cycle engineD
two piston strokes in a two-stroke/cycle engine
考题
单选题According to the passage, as the Sun continues to age, what color is it likely to become?A
Yellow.B
Violet.C
Red.D
White.
考题
单选题If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two-stroke/cycle diesel engine will develop approximately（）A
the same indicated horsepower as a four-stroke/cycle engineB
twice the indicated horsepower as a four-stroke/cycle engineC
one half indicated horsepower as a four-stroke/cycle engineD
one power stroke for every two crankshaft revolutions
考题
单选题According to the principle of two stroke diesel engine, what is the number of its efficient work stroke per revolution?（）A
1/2B
1C
2D
3
考题
单选题One of the differences between a two-stroke engine and a four-stroke engine is,（）A
a two-stroke engine works without exhaust operationB
a two-stroke engine works without compression strokeC
a two-stroke engine works without expansion strokeD
a two-stroke engine works without suction operation
考题
单选题What are the symptoms of sun stroke?（）A
Temperature falls below normal，pulse is rapid and feeble，skin is cold and clammyB
Temperature is high，pulse is strong and rapid，skin is hot and dryC
Temperature is high，pulse is slow and feeble，skin is clammyD
Temperature falls below normal，pulse is rapid，skin is clammy
考题
单选题What can be inferred from the passage?A
Phobias have much to do with depression.B
Everybody has something to fear about.C
Avoidance can help patients forget fear.D
The symptoms of panic disorder are easy to find.
考题
单选题What is the passage mainly about?A
Faint dwarf stars.B
The evolution cycle of the Sun.C
The Sun's fuel problem.D
The dangers of invisible radiation.
考题
单选题What is the crank angle between any two crank throws in the firing order of a four-stroke/cycle, in line, eight cylinder diesel engine?（）A
45B
60C
90D
100
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