2 . In looking through your social media, there’s a good chance you’ve noticed pictures accompanied by texts. The pictures are likely made possible by a text-to-image program called DALL-E. For example, Twitter user posted a tweet with the text, “To be or not to be, rabbi holding avocado, marble sculpture.” Then a matching picture appears below.

The AI models come from Google’s Imagen software as well as OpenAI. a start-up backed by Microsoft. On its website, OpenAI calls DALL-E “a new Al system that can create realistic images and art from a description in natural language.” But most of what’s happening in this area is coming from a relatively small group of people sharing their pictures. That’s because Google and OpenAI have not made the technology broadly available to the public.

The text-to-picture services identify the most important parts of a user’s text and then guess the best way to picture those terms. There’s generally a text box, a button to start the generation process and an area below to display images. To indicate the source. Google and OpenAI add watermarks in the bottom right comer of images from DALL-E and Imagen.

Engineers trained the models on various collections of words and pictures from the web. OpenAI recognizes the potential for harm that could come from a model. To avoid the risk, employees removed violent content from training data, and there are filters（筛选）stopping DALL-E from producing images if users submit（提交）violent or illegal content.

Boris Dayma, a developer from Texas spelled out the problems in an explanation of their software. Despite the risks, Dhariwal, a research scientist at OpenAI, said it could open up creative opportunities for individuals and could help with commercial applications for dressing up websites. Results should continue to improve over time.

1. What is the function of the the AI system DALL-E?

A．Beautifying pictures at users’ request.

B．Producing pictures from human words.

C．Changing pictures into vivid descriptions.

D．Providing pictures for users to choose from.

2. What does paragraph 3 mainly talk about concerning DALL-E?

A．Its users’ rights.	B．Its operating conditions
C．Its working process.	D．Its company’s prospect.

3. How could DALL-E ensure the images it produces legal?

A．All images come from a unified model.

B．The training data is selected beforehand.

C．Improper requests can’t be submitted.

D．Filters remove the unhealthy description.

4. What is Dhariwal’s attitude to the future of DALL-E?

A．Positive.

B．Objective.

C．Uncertain.

D．Worried.

3 . Picture the scene: you’ve spent years working towards a very specific goal. You’ve put in countless hours of work and made many efforts along the way, but now that you’ve got there it doesn’t feel quite like you imagined. Instead of celebration, you feel emptiness, confusion and doubt.

Welcome to the anti-climax. The often-experienced but seldom-discussed downside of achieving life’s biggest milestones. Many of us work tirelessly towards our goals. We may spend our lives dreaming of the day we get married, publish our first hook or buy our first home. However, oftentimes, when we achieve these things it doesn’t feel quite as expected. In fact, the achievement of these goals feels a bit of a letdown.

So why do we often experience an anti-climax with big goals, even though we’re happy to achieve them? “An anti-climax can be an unexpected by-product of a milestone achievement. Usually, the more significant the milestone, the greater the anti-climax may be. The intensity（强度）of an anti-climax often relies on what we expect of this achievement.” says Rachel Vora. a psychotherapist（心理治疗师）.“The journey to achieving a milestone can he exciting and tiring in addition to giving us a sense of purpose and focus. Therefore, when this disappears overnight. we can often feel lost and confused, in spite of feeling proud of our achievement.

When this happens it can contribute to a mixture of emotions. We often falsely believe that we’ll feel completely different afterwards or that our feelings of low self-worth will disappear, but this is rarely the case. “Clients（客户）often present to me with an extremely great sense of ‘is this it?’ and ‘what now?’.” says Vora. “These feelings of confusion and disappointment, if let ignored, have the potential to cause clients to be in low spirits, or even worse.”

1. Why does the author mention the examples in paragraph 2?

A．To present a fact.	B．To prove a rule.
C．To explain a term.	D．To make a prediction.

2. What does Vora think is the leading cause of the anti-climax?

A．Low self-worth.	B．High expectations.
C．Sense of purpose.	D．Unexpected achievements.

3. Which of the following is a case of the anti-climax?

A．Amy felt empty before giving a speech.

B．Jack felt lost after his first novel came out.

C．Mary felt proud when she joined a ballet club.

D．Tom felt doubtful about taking further education.

4. What will the author probably talk about in the following text?

A．How to hold back feelings.

B．How to improve self-worth.

C．Hon to identify the anti-climax.

D．How to deal with the anti-climax.

4 . When water is cold, people will find it uncomfortable to swim. Wetsuits(潜水服）can help keep people warm.    1    So wetsuits are important. In many water sports, you can find people wearing them.

The wetsuit doesn't have a long history. According to studies, the wetsuit only began during WWII when Italians started wearing wetsuits that were made of rubber. And it was widely believed in 1951, Hugh Bradner began working to improve the equipment.     2    

Now there are many kinds of wetsuits. Contrary to what some may think, wetsuits do not work by keeping the diver(潜水员）dry; they are designed to let water into the suit. This thin layer of water is trapped（保存）between the diver and the suit. And it's allowed to move between the skin of the diver and the inside layer.     3    And it can help keep the diver comfortable during the diving process. That's why it's important to have a nice, tight fit for a wetsuit.

    4    The shorter wetsuit often provides cover for the main part of people's bodies. This kind of wetsuit works well with boating, water skiing, swimming, etc. A longer wetsuit can completely cover the body, including long legs.With more protection for the body, it may be used in cool weather conditions.

Wetsuits can also differ in thickness. They range from about 0. 5mm to 8mm in thickness. It's true that thicker wetsuits are more likely to affect your movement.     5    Generally, the colder the water you plan to dive in, the thicker the wetsuit should be.

A．But they're much better at giving you warmth.

B．As for the difference, wetsuits can differ in size.

C．The history of the wetsuit is an interesting story.

D．This led to the development of a kind of new wetsuit.

E．Many wetsuits are very light and easy to wear and take off.

F．As a result, the water gradually warms up to body temperature.

G．And they can provide protection from the sun and cuts from rocks.

5 . Humans have been living and working on the space station for 20 years. Their meals are packaged, though sometimes astronauts receive fresh treats from resupply missions. The longer that packaged food is stored, the more it loses nutrients like vitamin C and vitamin K.

Astronauts have successfully grown 10 different crops on the space station since 2015 and had the chance to sample each one. The International Space Station hosted a party for astronauts on Friday as they celebrated the harvest of the first Chili (辣椒) grown in space. The crew finally had a chance to taste the peppers after initially kicking off the plant experiment on the space station in July.

Plant Habitat-04 is one of the most complex plant experiments on the orbiting laboratory to date because peppers take much longer to grow than the previous experiment plants. After growing for four months, the peppers were harvested on Friday.

Peppers provide a great source of vitamin C, as well as other key nutrients. Pepper plants self-pollinate, so they are easy to grow, and they are a pick-and-eat crop that doesn’t have to be cooked. They are also safe to eat raw.

A side effect of life in zero gravity is that astronauts often lose some of their taste and smell, so spicy or well-seasoned foods are a favorite. Adding fresh greens or peppers to the menu allows astronauts to liven up their regular meals. But growing and tending to the plants can also produce other benefits.

Astronauts have described the joy from seeing—as well as smelling and caring for—leafy green plants on the space station that remind them of Earth.

“Growing colorful vegetables in space can have long-term benefits for physical and psychological health,” said Matt Romeyn, principal investigator for the experiment.” We are discovering that growing plants and vegetables with colors and smells helps to improve astronauts’ well-being.”

1. What does underlined “kicking off” in the 2nd paragraph mean?

A．Launch.

B．Complete.

C．Quit.

D．Announce.

2. What makes Plant Habitat-04 one of the most complex plant experiments?

A．The technology.	B．Growing process.
C．The varieties of plants.	D．Growing time required.

3. Why are peppers added to the menu for astronauts?

A．They are delicious.	B．They restore their appetite.
C．They help kill diseases.	D．They improve their memory.

4. What is the suitable title for the text ?

A．The Fun in the Space Life

B．The Common Goal in the Space Mission

C．The First Chili Peppers Grown in Space

D．A Research Finding from the Space Mission