题目内容

Bring an extra pencil with you ________ something goes wrong with this one during the exam．

A.
in case
B.
in case of
C.
so that
D.
in order that

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相关题目

Plants can’t communicate by moving or making sounds, as most animals do. Instead, plants Produce volatile compounds, chemicals that easily change from a liquid to a gas. A flower’s sweet smell, for example, comes from volatile compounds that the plant produces to attract insects such as Bugs and bees.

Plants can also detect volatile compounds produced by other plants. A tree under attack by Hungry insets, for instance, may give off volatile compounds that let other trees know about the Attack. In response, the other trees may send off chemicals to keep the bugs away ——or even Chemicals that attract the bugs’ natural enemies.

Now scientists have created a quick way to understand what plants are saying: a chemical Sensor（传感器）called an electronic nose. The “e-nose” can tell compounds that crop plants make When they’re attacked Scientists say the e-nose could help quickly detect whether plants are being Eaten by insects. But today the only way to detect such insects is to visually inspect individual Plants. This is a challenging task for managers of greenhouses, enclosed gardens than can house Thousands of plants.

The research team worked with an e-nose than recognizes volatile compounds. Inside the device, 13 sensors chemically react with volatile compounds Based on these interactions, the e-nose gives off electronic signals that the scientists analyze using computer software.

To test the nose, the team presented it with healthy leaves from cucumber, pepper and tomato plants, all common greenhouse crops. Then scientists collected samples of air around damaged leaves from each type of crop, These plants had been damaged by insects, or by scientists who made holes in the leaves with a hole punch（打孔器）. The e-nose, it turns out, could identify healthy cucumber, pepper and tomato plants based on The volatile compounds they produce, It could also identify tomato leaves that had been damaged. But even more impressive, the device could tell which type of damage ---- by insects or with a hole Punch ---- had been done to the tomato leaves.

With some fine-tuning, a device like the e-nose could one day be used in greenhouses to quickly spot harmful bugs, the researchers say. A device like this could also be used to identify fruits that are perfectly ripe and ready to pick and eat, says Natalia Dudareva, a biochemist at Purdue University in West Lafayette, Ind. who studies smells of flowers and plants. Hopefully, scientists believe, the device could bring large benefits to greenhouse managers in the near future.

We learn from the text that plants communicate with each other by____.

A. making some sounds B. waving their leaves

C. producing some chemicals D. sending out electronic signals

What did the scientists do to find out if the e-nose worked?

A. They presented it with all common crops.

B. They fixed 13 sensors inside the device.

C. They collected different damaged leaves.

D. They made tests on damaged and healthy leaves.

According to the writer, the most amazing thing about the e-nose is that it can___.

A. pick out ripe fruits

B. spot the insects quickly

C. distinguish different damages to the leaves

D. recognize unhealthy tomato leaves

We can infer from the last paragraph that the e-nose_____.

A. is unable to tell the smell of flowers

B. is not yet used in greenhouses

C. is designed by scientists at Purdue

D. is helpful in killing harmful insects

Plants can’t communicate by moving or making sounds, as most animals do. Instead, plants produce volatile compounds (挥发性化合物) —— chemicals that easily change from a liquid to a gas. A flower’s sweet smell, for example, comes from such volatile compounds to attract insects such as bugs and bees.
Plants can also discover volatile compounds produced by other plants. A tree under attack by hungry insets, for instance, may give off these chemicals in order to let other trees know about the attack. In response, the other trees may send off their chemicals to keep the bugs away —— or even chemicals that will attract the bugs’ natural enemies.
Now scientists have created a quick way to understand what plants are saying: a chemical sensor (传感器) called an “electronic nose”. The “e-nose” can tell such compounds as plants make. When plants are attacked, scientists say, the e-nose could help quickly decide whether plants are being eaten by insects. But today, the only way to spot such insects is to inspect individual plants by observing them. This is a challenging task for managers of greenhouses, including those that can house thousands of plants. The research team is working with an e-nose that can recognize volatile compounds. Inside the device, 13 sensors chemically react with volatile compounds based on the interactions (相互作用), and then the e-nose will give off electronic signals that the scientists can analyze by using computer software.
To test the e-nose, the team presented it with healthy leaves from cucumber, pepper and tomato plants, all being common greenhouse crops. Then scientists collected samples of the air around damaged leaves from each type of crop. These plants had been damaged either by insects or by scientists who made holes in the leaves with a hole punch (打孔器).
The e-nose, it turns out, can identify healthy cucumber, pepper and tomato plants based on the volatile compounds they produce. It could also identify tomato leaves that had been damaged. But even more impressive, the device could tell which type of damage —— by insects or with a hole punch —— had been done to the tomato leaves.
With some fine-tuning (微调), a device like the e-nose can one day be used in greenhouses to quickly spot harmful bugs, the researchers say. A device like this can also be used to identify fruits that are perfectly ripe and ready to pick and eat, says Natalia Dudareva, a biochemist at Purdue University in West Lafayette, India, who studies smells of flowers and plants. Hopefully, scientists believe, the device can bring large benefits to greenhouse managers in the near future.
【小题1】We learn from the text that plants communicate with each other by ______.

A．making some sounds

B．waving their leaves

C．producing some chemicals

D．sending out electronic signals

【小题2】What did the scientists do to find out if the e-nose worked?

A．They fixed 13 sensors inside the device.

B．They presented it with all common crops.

C．They collected different damaged leaves.

D．They do tests on damaged and healthy leaves.

【小题3】According to the writer, the most amazing thing about the e-nose is that it can ______.

A．pick out ripe fruits quite expertly

B．spot the insects in a very quick way

C．tell different damages to leaves

D．recognize unhealthy tomato leaves

【小题4】We can infer from the last paragraph that the e-nose ______.

A．is unable to tell the smell of flowers

B．is not yet tested in greenhouses

C．is designed by scientists at Purdue

D．is helpful in killing harmful insects

Ｃ

Part-time Front Desk Position

Fuse Fitness is looking for a part-time front desk receptionist at our new Carlsbad location.
Job duties include:
Welcoming and greeting members;
Answering phone calls;
Signing up new members;
Cleaning and performing other various duties.
You should have great communication skills and be dependable. More importantly, you should have a positive spirit in stressful situations. You are expected to work five days a week (including weekends).
Please, no phone calls about this job in the morning!
Tel: (760) 434-7704
E-mail: info@fusefitness.com
Apply in person at: 2502 El Camino Real, Carlsbad, CA 92008

________________________________________________
The first impression you make on a potential employer is very important. The first judgement an interviewer makes is based on how you look and what you are wearing. That’s why it’s always important to dress professionally for a job interview, even if the work environment is casual.
l Before you even think about going to an interview, make sure you have appropriate interview clothes and that everything fits correctly.
l Get you clothes ready the night before, so you don’t have to spend time getting them ready on the day of the interview.
l If your clothes can only be dry-cleaned, take them to the dry cleaner’s after an interview, so they are ready for next time.
l Polish your shoes.
l Bring a breath mint (薄荷糖) and use it before you enter the building.
For more information:
Visit: Jobsearch. monster. com
Or Tel: (800) 421-7250 or (760) 603-4000 Carlsbad, California

64. How should you contact Fuse Fitness about the front desk position in the morning if you can’t go in person?
A. Call (760) 603-4000
B. Call (760) 434-7704
C. Visit Jobsearch. monster. com
D. Send an e-mail to info@fusefitness.com.
65. What does Fuse Fitness think is the biggest challenge for a receptionist?
A. Working five days a week including weekend.
B. Having good communication skills.
C. Keeping cheerful even in difficult situations.
D. Welcoming guests and answering phone calls.
66. What would be the best title for the second piece of information?
A. What to Bring to a Job Interview
B. How to Find a Desired Job
C. The First Impression in a Job Interview.
D. Interview Dressing Tips

Part-time Front Desk Position
Fuse Fitness is looking for a part-time front desk receptionist (接待员) at our new Carlsbad location.
Job duties include:
l Welcoming and greeting members;
l Answering phone calls;
l Signing up new members;
l Cleaning and performing other various duties.
You should have great communication skills and be dependable. More importantly, you should have a positive spirit in stressful situations. You are expected to work five days a week (including weekends).
Please, no phone calls about this job in the morning!
Tel: (760) 434-7704
E-mail: info@fusefitness.com
Apply (申请) in person at: 2502 El Camino Real, Carlsbad, CA 92008
______________________________________________________________________________
The first impression you make in a job interview is very important. The first judgment an interviewer makes is based on how you look and what you are wearing. That’s why it’s always important to dress professionally for a job interview, even if the work environment is casual.
l Before you even think about going to an interview, make sure you have suitable interview clothes and that everything fits correctly.
l Get you clothes ready the night before, so you don’t have to spend time getting them ready on the day of the interview.
l Polish (擦亮) your shoes.
l Bring a breath mint (薄荷糖) and use it before you enter the building.
For more information:
Visit: Jobsearch. monster. com
Or Tel: (800) 421-7250 or (760) 603-4000 Carlsbad, California
【小题1】How should you contact Fuse Fitness about the front desk position in the morning if you can’t go in person?

A．Call (760) 603-4000

B．Call (760) 434-7704

C．Visit Jobsearch. monster. com

D．Send an e-mail to info@fusefitness.com.

【小题2】What does Fuse Fitness think is the biggest challenge for a receptionist?

A．Working five days a week including weekends.

B．Having good communication skills.

C．Keeping cheerful even in difficult situations.

D．Welcoming guests and answering phone calls.

【小题3】What would be the best title for the second piece of information?

A．What to Bring to a Job Interview

B．How to Find a Desired Job

C．The First Impression in a Job Interview

D．Interview Dressing Suggestions

【小题4】Which is TRUE according to the second piece of information?

A．The first judgment is made based on how you behave.

B．What to wear should be taken into consideration before an interview.

C．It is OK to dress informally for an interview if the work environment is casual.

D．You don’t need to pay attention to your shoes because nobody will notice them.

Part-time Front Desk Position

Fuse Fitness is looking for a part-time front desk receptionist (接待员) at our new Carlsbad location.

Job duties include:

Welcoming and greeting members; Answering phone calls;

Signing up new members; Cleaning and performing other various duties.

You should have great communication skills and be dependable. More importantly, you should have a positive spirit in stressful situations. You are expected to work five days a week (including weekends).

Please, no phone calls about this job in the morning!

Tel: (760) 434-7704 E-mail: info@fusefitness.com

Apply (申请) in person at: 2502 El Camino Real, Carlsbad, CA 92008

The first impression you make in a job interview is very important. The first judgment an interviewer makes is based on how you look and what you are wearing. That’s why it’s always important to dress professionally for a job interview, even if the work environment is casual.

Before you even think about going to an interview, make sure you have suitable interview clothes and that everything fits correctly.

Get your clothes ready the night before, so you don’t have to spend time getting them ready on the day of the interview.

Polish (擦亮) your shoes.

Bring a breath mint (薄荷糖) and use it before you enter the building.

For more information: Visit: Jobsearch. monster. com

Or Tel: (800) 421-7250 or (760) 603-4000 Carlsbad, California

1.How should you contact Fuse Fitness about the front desk position in the morning if you can’t go in person?

A．Call (760) 603-4000	B．Call (760) 434-7704
C．Visit Jobsearch. monster. Com	D．Send an e-mail to info@fusefitness.com.

2.What does Fuse Fitness think is the biggest challenge for a receptionist?