U3L1 Spanish Test Flashcards

Other sets by this creator

AP Psych Review

38 terms

tertiary compounds

55 terms

Vocab

6 terms

Honors world history exam review

47 terms

Verified questions

vocabulary

It's possible that man's best friend will turn out to be a rat-at least when it comes to getting rid of landmines. The rat's sensitive nose, amazing endurance, and huge appetite make it ideal for the job of detecting these dangerous weapons. There are hundreds of thousands of hidden, unexploded landmines buried throughout the world. (1) Political conflict often obstructs efforts to get rid of them. (2) But even after the cessation of wars, these mines can kill or injure people who accidentally step on them. (3) After a sixteen-year civil war ended in Mozambique, efforts commenced to find the many landmines still hidden there. But officials struggled with a basic question: What is the best way to search for them? People have used metal detectors to search for the mines. (4) However, the potential danger of an explosion deters planners from asking people to perform this task. Furthermore, metal detectors cannot distinguish an ordinary metal object from a mine. Bulldozers protected by armor are also used to find mines. (5) Although they work well on flat ground, bulldozers are hampered by hills and by landscapes dotted with buildings. Because TNT, the explosive used in landmines, has a distinct scent, dogs have been used to sniff out mines. However, dogs are not ideal for the job, either. They can become bored easily. (6) If a dog tires of the repetitive nature of this task, it may start to procrastinate or even disobey its trainer's orders. Furthermore, the dogs used for this task usually weigh enough to trigger the landmines, which can be deadly to the dogs and their trainers. Finally, because they are unused to tropical climates and parasites, dogs working in warm African countries may contract diseases. Unlike dogs, the Gambian giant-pouched rat may be perfect for the job. A Belgian company is experimenting with training these rats to find landmines. Typically, the rats bury food underground and locate it with their extraordinary sense of smell. Trainers simply teach the rats to associate the scent of TNT with a food reward. When a rat locates an explosive, it claws the ground. Then the trainer clicks a noisemaker that signals the rat to return for its reward-usually peanut butter or a banana. Since the Gambian rat is native to Africa, it is used to the climate and resistant to local diseases. At a maximum length of three feet-half of which is tail-these rats can easily be harnessed. (7) Their low weight precludes the rats from accidentally triggering landmines. These rats can also be social and are trained to be obedient. (8) Food rewards are the only incentive they need to encourage them to scuttle about, sniffing for landmines over and over again. (9) In fact, only two factors commonly thwart the rats' efforts to locate landmines. Because they normally live underground and are nocturnal, or active at night, they are not used to the hot sun and can suffer heatstroke during the day. Also, they must be hungry to work effectively. (10) Once a rat's appetite subsides, it may refuse to sniff for mines. Each sentence below refers to a numbered sentence in the passage. Write the letter of the choice that gives the sentence a meaning that is closest to the original sentence. Efforts $\rule{2cm}{0.15mm}$ to find the many landmines still hidden there. a. began b. halted c. ended d. sank

Verified answer

spanish

Conteste las siguientes preguntas con la palabra negativa correspondiente.

¿Todavía estás soltero?

__________________________________________________________

Verified answer

spanish

Circle the verb ( Bold ) and underline ( italic ) the direct object in each of the following sentences. Modelo: Todos los días** llevo** el perro al parque.

Tú siempre escuchas la radio, ¿verdad?

Verified answer

spanish

¿Dónde comieron?

Verified answer