47. What is the purpose of this paragraph, according to the topic sentence as follows?
You can follow these directions to safely use lab equipment to perform the experiment.
(A) To show the effects of using lab equipment safely.
(B) To emphasize the importance of using lab equipment safely.
(C) To illustrate an example of using lab equipment safely.
(D) To explain the steps of using lab equipment safely.

43. What does the word "demotivate" in paragraph 2 mean?(A) To make someone willing to do a job(B) To make someone less eager to do something.(C) To encourage people to actively support something(D) To make a plan or wish become true.

44. Which of the following prompts can be used to check the reflection point of "value"?(A) How would I feel if I fail to do the task?(B) How can I develop the skills I need to complete the task?(C) What is the immediate step I have to take?(D) What could I have done differently?

45. What can be implied about Wessel's research findings?(A) It takes time for people to quit the habit of postponing.(B) The university context might not be good to test Wessel's research method.(C) The reflection points can successfully help people reduce the elevated risk of chronic diseases.(D) The reflection points sound annoying but practical.

46. You are required to write a paragraph to show the cause of the rise in homeless rates in the city. Which of the followings is the most appropriate topic sentence of this paragraph?(A) The rise in homeless rates in the city has had dramatic effects in people's everyday life.(B) The most profound reason for the increase of homeless rates is the lack of adequate social support services.(C) The best way to deal with the rise in homeless rates is to increase job opportunity and to provide affordable housing.(D) The increase of homeless rates has caused public health and economic problems in the community.

48. __________Many European countries, such as France and Germany, have banned growing GM crops. However, the U.S. and Brazil generally have more favorable regulations for GM crops and are among the world's largest producers of such crops.Which of the followings is the most appropriate topic sentence of this paragraph?(A) Regulations of GM foods are dramatically different around the world.(B) Growing GM crops should be banned globally to protect the public's health.(C) European countries are still learning about how to regulate GM crops.(D) Strict regulation of GM crops has limited production of GM foods in Europe.

49. Although scientists know very little about giraffes, they do know that giraffes are in trouble. Habitat loss and poaching have reduced their numbers by an estimated 40 percent in the last 30 years.____________. To combat this decline, Dr. Brown and other scientists have been surveying and monitoring as many wild giraffe populations as they can.Which of the followings is the most appropriate supporting sentence of this paragraph?(A) Giraffes don't need much sleep to function.(B) Some subspecies are now critically endangered.(C) Surveying and monitoring giraffes is very challenging.(D) This reduction has led to a new discovery about giraffes.

50. More companies are using augmented reality to help people with online shopping. Jins Eyewear, which sells prescription glasses, lets you take a photo of your face to virtually try on glasses before deciding whether to buy them. Snap, the parent company for Snapchat, has teamed up with luxury brands like Gucci and Dior to offer virtual try-ons.Which of the followings is the most appropriate concluding sentence of this paragraph?(A) More and more technology companies are investing more money to help customers choose where and how they would like to shop in the store.(B) This technology improves the shopping experiences by allowing us to interact with digital objects in our physical world.(C) In reality, Jins Eyewear is making more profits than Snap because the company sells photos with the prescription glasses.(D) Virtual reality is now replacing online shopping in the luxury market, as it provides a better experience for both the customers and the brand.

1. Some scientists claim that plant-based meat alternatives are better for consumers and better for the planet, requiring less land and water and producing fewer greenhouse gas______than meat from cattle.(A) emissions (B) discharges (C) ejections (D) projections

2. Beef burgers are still overwhelmingly the more popular choice at restaurants.Americans______6.4 billion beef burgers at quick service restaurants in one year.(A) distributed (B) obtained (C) purchased (D) obsessed

3. For every 100-gram (3.5-ounce) increase in the weight of ultra-processed food __, the risk for diabetes increased by 5 percent.(A) expired (B) stimulated (C) resumed (D) consumed