1 . How to Design a Small Garden
Even if you don’t have a large area in your yard, you can still make a beautiful garden that maximizes the space you have by following tips.
Plan the layout for your garden by drawing the outline on the paper. Start by sketching longer rectangles（矩形）for your garden beds so they’re to scale for the actual size you want them.
Arrange your design so there are focal points. Aim to have several aspects of your garden design unique so they stand out from the rest of your plants.
Put similar plants across from one another to create rhythm and symmetry(对称). Rather than put different plants in each of your garden beds, choose to use the same plant or ones that have similar textures or colors so they’re across from one another.
| A．And avoid any inconvenience caused by difficult access |
| B．Try to position smaller plants in between larger ones |
| C．Pick a place where you can easily get to your garden |
| D．You may still be able to measure the length of the rectangles |
| E．Then divide the rectangles into smaller sections for different plants |
| F．This could be a statue or a fountain placed in the center or on either side |
| G．That way, when you look at your garden, it will look inviting and make the area feel more balanced |
2 . Atomic shapes are so simple that they can’t be broken down any further. Mathematicians are trying to turn to artificial intelligence (AI) for help to build a periodic table of these shapes, hoping it will assist in finding yet-unknown atomic shapes.
Tom Coates at Imperial College London and his colleagues are working to classify atomic shapes known as Fano varieties, which are so simple that they can’t be broken down into smaller components. Just as chemists arranged element s in the periodic table by their atomic weight and group to reveal new insights, the researchers hope that organizing these atomic shapes by their various properties will help in understanding them.
The team has given each atomic shape a sequence of numbers based on its features such as the number of holes it has or the extent to which it bends around itself. This acts as a bar code (条形码) to identify it. Coates and his colleagues have now created an AI that can predict certain properties of these shapes from their bar code numbers alone, with an accuracy of 98 percent.
The team member Alexander Kasprzyk at the University of Nottingham, UK, says that the AI has let the team organize atomic shapes in a way that begins to follow the periodic table, so that when you read from left to right, or up and down, there seem to be general patterns in the geometry (几何) of the shapes.
Graham Nib lo at the University of Southampton, UK, stresses that humans will still need to understand the results provided by AI and create proofs of these ideas. “AI has definitely got unbelievable abilities. But in the same way that telescopes (望远镜) don’t put astronomers out of work, AI doesn’t put mathematicians out of work,” he says. “It just gives us new backing that allows us to explore parts of the mathematical landscape that are out of reach.”
The team hopes to improve the model to the point where missing spaces in its periodic table could point to the existence of unknown shapes.
1. What is the purpose of building a periodic table of shapes?| A．To gain deeper insights into the atomic shapes. |
| B．To create an AI to predict the unknown shapes. |
| C．To break down atomic shapes into smaller parts. |
| D．To arrange chemical elements in the periodic table. |
| A．Its holes. | B．Its bends. |
| C．Its atomic weight. | D．Its properties. |
| A．Design. | B．Help. | C．Duty. | D．Threat. |
| A．Thanks to AI, new atomic shapes have been discovered. |
| B．Mathematicians turn to AI to create more atomic shapes. |
| C．AI helps build a relationship between chemistry and maths. |
| D．A periodic table of shapes can be built with the help of AI. |
3 . Fresh fish should have a mild smell. Strong fishy smells are the first signs to go bad. How do the fishy smells come from?
It can be several days from when the fish are caught to when they reach the supermarket. In that time, bacteria that grow naturally in fish start to consume a substance called trimethylamine N-oxide(TMAO)in fish. These bacteria change TMAO into trimethylamine (TMA), the substance responsible for the fishy smells. Bacteria in fish can also change lysine(赖氨酸)into cadaverine(尸胺), a substance that’s associated with breaking down the fish once they are caught and giving off fishy smell.
Chemical reactions can also lead to fishy smells. This happens through the oxidation(氧化)of fat. Fish are an important source of omega-3 fatty acids. When these fats are exposed to oxygen, they oxidize and break down into the substance that you can smell.
To slow down the fishy smell, what is beyond question is that the less time between when the fish are caught and when they reach the kitchen, the better. But today, fish are often flown across the globe. To keep smell-producing bacteria at bay, the fish must be frozen or kept at the low temperature possible as soon as they are caught and cleaned.
Controlling fat oxidation can function as well, especially for fattier fish species. While freezing slows bacterial growth, it does not stop fat oxidation. This reaction will occur as long as oxygen is present. Fatty fish are usually not frozen because, despite the cold temperature, they’re going to oxidize pretty fast unless they are stored in a low oxygen container. That’s why those species are often canned.
It’s also important to remember that smell is not always an indicator of safety, especially in processed fish products. “What you might consider the fishy smell may be a delicacy in another culture,” said Carl A. Batt, a professor of food science at Cornell University.
1. Which of the following has the fishy smell?| A．Fish fat. | B．TMAO. | C．Cadaverine. | D．Lysine. |
| A．Drying them in the air. | B．Storing them in closed containers. |
| C．Carefully cleaning them. | D．Exposing them to rich oxygen. |
| A．Objective. |
| B．Negative. |
| C．Acceptable. |
| D．Unclear. |
| A．Topic—Example—Conclusion. | B．Topic—Comparison—Opinion. |
| C．Question——Cause——Solution. | D．Question—Effect—Opinion. |
4 . Fortunately, the days of being spread on thick baby oil and lying in the sun to get you skin yellowish-brown—or more likely burnt—are long over. Many sunscreens work by filtering (过滤) the sun’s ultraviolet (UV) rays to keep them from reaching skin cells and causing the DNA damage that can lead to wrinkles and skin cancer. But in recent years, the safety of some of those filtering chemical ingredients, particularly oxybenzone (氧苯铜), has been in question.
A 2019 study published in JAMA found evidence that oxybenzone is absorbed into the bloodstream, leading to concerns about whether it might affect functions of our body. Oxybenzone has also been detected in breast milk for newborn babies. Because of concerns about higher intake in children, doctors from the American Academy of Pediatrics advise against sunscreen with oxybenzone for kids.
The Environmental Working Group, an activist organization that monitors chemical safety, has called for a ban, but the U.S. Food and Drug Administration considers sunscreens with oxybenzone safe. “It’s uncertain,” says Deborah S. Sarnoff, president of the U.S. Skin Cancer Foundation. “Just because you’re absorbing the chemical doesn’t mean it’s dangerous.” Further study is required.
But oxybenzone is a risk to coral reefs. Hawaii and the U.S. Virgin Islands have banned the sale of sunscreens with oxybenzone. In a 2022 study published in Science, researchers found that some certain sea plants, when exposed to sunlight, turn oxybenzone into energy or something needed in a way that damages and kills corals.
Some companies have been trying to stop using oxybenzone gradually in stages, and many big brands offer oxybenzone-free options. For anyone who is pregnant or breastfeeding, or simply looking to avoid these chemical filters, Dr. Sarnoff recommends mineral sunscreens, which contain mainly physical barriers.
1. What is the advantage of sunscreen?| A．It gets your skin yellowish-brown. | B．It stops wrinkles and skin cancer. |
| C．It keeps UV rays from harming you. | D．It prevents skin cells from DNA damage. |
| A．They don’t want children to absorb more oxybenzone. |
| B．They don’t want oxybenzone to hurt babies’ functions. |
| C．They know oxybenzone can affect children’s bloodstream. |
| D．They know oxybenzone has been found in newborn babies. |
| A．Coral reefs in Hawaii were damaged or killed by sunscreens. |
| B．More research is needed to prove the danger of oxybenzone. |
| C．Some organizations have already banned the use of sunscreens. |
| D．Mineral sunscreens are much safer than those with oxybenzone. |
| A．The findings about sunscreens with oxybenzone. |
| B．Questions on safe use of oxybenzone raised by doctors. |
| C．Discussion on safety of oxybenzone between organizations. |
| D．Effects of sunscreens on humans and plants in recent studies. |
5 . Sea Life Melbourne Aquarium (水族馆)
The all-new Sea Life Melbourne Aquarium, situated in the heart of Melbourne’s CBD, is one of Victoria’s leading visitor attractions and an unforgettable outing for the whole family. Having 12 amazing zones of discovery, Sea Life Melbourne Aquarium is the very place that you cannot miss when you visit the city.
* Opening Times
Sea Life Melbourne Aquarium is open from 9:30 am until 6:00 pm every day of the year, including public holidays. Last admission is at 5:00 pm, one hour before closing.
* Location
Sea Life Melbourne Aquarium is located on the comer of Flinders Street and King Street, Melbourne. It is situated on the Yarra River, opposite Crown Entertainment Complex.
* Getting to Sea Life Melbourne Aquarium
Train
The Sea Life Melbourne Aquarium is a short walk from either Flinders or Southern Cross train stations.
Tram
The Sea Life Melbourne Aquarium tram stop is located on the free City Circle Tram route and also routes 70 and 75. City Circle trams run every 10 minutes in both directions.
Shuttle Bus
The Sea Life Melbourne Aquarium is a free bus service, stopping at key tourist attractions in and around the City. Running daily, every 15 minutes from 10:00 am to 4:00 pm.
* Car Parking
While there is no public car parking at Sea Life Melbourne Aquarium, there are several public car parking lots available only a short walk away.
* Wheelchair Access
Sea Life Melbourne Aquarium provides people in wheelchairs with full access to all 12 zones. Each floor also has wheelchair accessible toilets.
* Terms
Tickets will be emailed to you immediately after purchase or you can download and print your ticket once payment has been accepted. Please print out all tickets purchased and present at the front entrance of Sea Life Melbourne Aquarium. No ticket, no entry!
1. Which of the following about Sea Life Melbourne Aquarium is true?| A．It is beside Crown Entertainment Complex. |
| B．It has 12 most attractive places in Melbourne. |
| C．It admits visitors from 9:30 am until 6:00 pm. |
| D．It is situated at the center of the CBD in the city. |
| A．trains from southern Cross train station | B．either tram route 70 or 75 |
| C．boats across the Yarra River | D．shuttle buses around the train station |
| A．are free to all visitors | B．can be purchased only by email |
| C．are checked at the entrance | D．can be printed at the ticket office |
6 . Facial expressions carry meaning that is determined by situations and relationships. For example, in American culture (文化) the smile is in general an expression of pleasure. Yet it also has other uses. A woman’s smile at a police officer does not carry the same meaning as the smile she gives to a young child. A smile may show love or politeness. It can also hide true feelings. It often causes confusion (困惑) across cultures. For example, many people in Russia consider smiling at strangers in public to be unusual and even improper. Yet many Americans smile freely at strangers in public places (although this is less common in big cities).Some Russians believe that Americans smile in the wrong places; some Americans believe that Russians don’t smile enough. In Southeast Asian cultures, a smile is frequently used to cover painful feelings. Vietnamese people may tell a sad story but end the story with a smile.
Our faces show emotions (情感), but we should not attempt to "read" people from another culture as we would "read" someone from our own culture. The fact that members of one culture do not express their emotions as openly as do members of another does not mean that they do not experience emotions.
Rather, there are cultural differences in the amount of facial expressions permitted. For example, in public and in formal situations many Japanese do not show their emotions as freely as Americans do. When with friends, Japanese and Americans seem to show their emotions similarly.
It is difficult to generalize about Americans and facial expressiveness because of personal and cultural differences in the United States. People from certain cultural backgrounds in the United States seem to be more facially expressive than others. The key is to try not to judge people whose ways of showing emotion are different. If we judge according to our own cultural habits, we may make the mistake of "reading" the other person incorrectly.
1. What does the smile usually mean in America?| A．Love. | B．Politeness. |
| C．Joy. | D．Thankfulness. |
| A．show friendliness to strangers |
| B．be used to hide true feelings |
| C．be used in the wrong places |
| D．show personal habits |
| A．Learn about their relations with others. |
| B．Understand their cultural backgrounds. |
| C．Find out about their past experience. |
| D．Figure out what they will do next. |
| A．Cultural Differences |
| B．Smiles and Relationship |
| C．Facial Expressiveness |
| D．Habits and Emotions |
