Answer:
The main difference between past simple and past continuous tense is that:
- we use<u> past simple tense</u> when something happened at some time in past. We also commonly use this tense with past time adverbs (yesterday, last night, two days ago, etc.)
For example: John called his friend yesterday.
- we use <u>past continuous tense</u> if an action occurred in the past and <u>lasted for a period of time.</u>
Example: I was reading a book all day yesterday.
We used past continuous tense because the action of reading lasted for some time (a whole day in this case).
Answer:
Shaping
Explanation:
In psychology, shaping refers to the process of reinforcing successively closer and closer approximations to a desired terminal behavior.
Shaping has different stages:
- Reinforce any response that in some way resembles the desired behavior.
- Reinforce the response that closely approximates the desired behavior
- Reinforce the response that resembles the terminal behavior even more closely.
- Continue reinforcing closer and closer approximations to the terminal behavior
- Reinforce only the terminal behavior.
As you can see shaping starts by reinforcing any response that resembles the desired terminal behavior and then it finishes by reinforcing only the terminal behavior.
In this example, <u>the therapist initially gave him a piece of chocolate any time he made a sound with his lips</u>. Then <u>he only received a piece of chocolate for saying complete words</u>. Finally, <u>he would get the chocolate for saying complete sentences. </u>
Thus, this is an example of shaping, since the reinforcements where changing as the behavior got closer and closer to the terminal desired behavior.
On a May night last year, Snitch gathered his surveillance1 team in a wild corner of South Africa. They waited until well after sunset before stealthily beginning their mission. Using a catapult2 powered by a bungee cord, the experts launched a small airplane over the deep and dark landscape, thick with acacia trees sporting 5-centimeter (2-inch) thorns.
Their robotic aircraft — or drone — is about as long as a bicycle and sports a 2.4-meter (8-foot) wingspan. In recent years, scientists have begun putting drones in the air to do many kinds of groundbreaking research. Drones carry no pilot, passengers or crew. They are often small and light. Some fly like an airplane, others like a helicopter or a blimp. Drones may fly autonomously (along a preprogrammed path) or under the control of a pilot on the ground.
That night in South Africa, Snitch and his team flew their drone by remote control over Kruger National Park. High in the sky, and under the cover of darkness, the Terrapin 1 flew undetected over the landscape. Though unseen, it could see perfectly. The experts scanned the ground using a special camera attached to their drone. This camera was designed to see anything that gives off heat, including elephants, rhinos — and people
<span>President John F Kennedy appeal to Americans' sense of patriotism in his inaugural address as h</span>e reminds them that the United States has a long tradition of fighting for freedom at home and around the world.
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I think it is d since if he doesnt like his family his family may be obnoxious so he would like the peasants
