1 . Solar power is one of the fastest growing sources of renewable power globally these years. Solar photothermal (光热) and solar photovoltaic (PV光伏)are both technical forms.
The thermal power station adopts the generation mode of “light--heat--electricity”. Thousands of heliostats (定日镜) reflect the sunlight to the surface of the heat absorber on the top of the solar tower. The concentrated sunlight is then used either directly as a source of heat, as in solar water heating, or to drive a heat cycle such as a Sterling Engine. PVs use semi-conductor technology to directly convert sunlight into electricity. The PV line is connected to the direct current (DC) distribution cabinet in parallel through the DC combiner box. After confluence (汇合), it is connected to the DC input end of the inverter to convert DC into alternating current (AC). The AC output end of the inverter is connected to the AC distribution cabinet and directly connected to the user side through the AC distribution cabinet.
Additionally, since solar thermal directly produces heat, it can store thermal energy into various media. Therefore, solar thermal can potentially generate power 24 hours a day. On the other hand, PVs only operate when the sun is shining, and must be coupled either with other power generation mechanisms to ensure a constant supply of electricity.
The scale of PV power generation can be large or small, ranging from thousands of watts to hundreds of megawatts, but photothermal power generation is typical economies of scale. With the increase of scale, the lower the power generation cost.
PV power generation is less limited by region, for the sun shines on the earth. Compared with other sources of renewable power, the PV system is safe and reliable as well as eco-friendly. Since it can be convenient for local power generation and power supply, you do not worry about consuming fuel or erecting transmission lines. A small PV power can be constructed in a short period with no noise or low pollution.
1. How does the author develop the text?A.By making comparisons. | B.By giving examples. |
C.By making assumptions. | D.By analyzing statistics. |
A.The DC distribution cabinet. | B.The DC input end of the inverter. |
C.The AC distribution cabinet. | D.The AC output end of the inverter. |
A.Its popularity. | B.Its efficiency. | C.Its cost. | D.Its advantages. |
A.Solar Thermal vs. Solar Photovoltaic |
B.Some facts about Solar Photovoltaic |
C.The development of solar power generation |
D.The wide use and promising future of solar power |
2 . Self drive Ireland tours are ideal for people who enjoy the freedom to go at their own pace and make their own plans. Go Irish Tours specializes in short Ireland self drive tours ranging from 5 to 8 days long-perfect for a mid-year getaway or a romantic honeymoon.
Short Break Away (5 nights). It takes you from Dublin through Cork, Kerry and the Midlands, providing a perfect taste of Irish culture and history. Drive around Ireland in style, guiding yourself through sprawling cityscapes and rolling green hills alike. Just start with Phoenix Park.
Romantic Love Tour (6 nights). This idyllic driving tour is short but sweet, perfect for newlyweds with a passion for adventure. You’ll fall in love with Ireland over the course of six nights, cosying up in castles and driving through the most romantic scenery on Earth. This tour is the perfect way to treat yourselves after the hustle and bustle of planning a wedding.
Haunted Ireland Tour (7 nights). This ghosty self drive tour is bursting with Irish culture, mythology and legend. Explore haunted castles and twisted woods, learning of our fantastic folklore (民俗学) and its origins. This tour is a truly unique way to explore Ireland on your own. Leep Castle is one you can’t miss.
Southern Loop Tour (8 nights). This is a fantastic introductory trip to Éire. This week-long escape draws a ring from Dublin through the south half of the island and back again, stopping in Cork, Kerry, Clare, Galway and the Midlands. Enjoy getting to grips with Ireland’s roads as you explore hills, valleys, mountains and villages behind the wheel of your personal rented car. This self-driving tour of Ireland will leave you dying to visit again!
1. What does Go Irish Tours possibly do?A.A local expert travel agent. | B.A local government branch. |
C.An international trade company. | D.A popular travel magazine. |
A.Short Break Away. | B.Romantic Love Tour. |
C.Southern Loop Tour. | D.Haunted Ireland Tour. |
A.Go on a bike tour of the Phoenix Park. |
B.Buy your bride one classic ladies gold ring. |
C.Brave enough to visit the notorious Leep Castle alone. |
D.Experience different road conditions when driving around. |
1. How much does it cost a grown-up to visit the Sea Life Centre?
A.£2. | B.£4. | C.£10. |
A.At 8:30 am. | B.At 9:30 am. | C.At 10:30 am. |
A.Perform in a play. | B.Talk with an actor. | C.Watch a short film. |
A.An open-air swimming pool. |
B.An underwater glass passage. |
C.An outside children’s play area. |
1. What did David do last night?
A.He played volleyball. | B.He watched television. | C.He read the newspaper. |
A.At 2:30. | B.At 3:00. | C.At 3:30. |
A.Give David a call. | B.Talk with her mom. | C.Take a piano lesson. |
Lǎozìhào refers to the old and famous shops, which have always been reliable and trustworthy and still enjoy
These famous and time-honored shops, eg, Quanjude and Tongrentang,
But these shops are more about businesses; they are also a historical and cultural phenomenon. He
Nowadays, with the rapid development of economy and fierce competition in modern society, some Lǎozìhào shops have been keeping pace
6 . In 1948, Ladies Home Journal selected our family for its “How America Lives” feature. The reporter and photographer arrived at the end of May and followed all of us (Mom, Dad, my brother, sister and me) for a week, recording our every move. Everyone was pretty excited about it, especially in our town of 6,000, where things like this just didn’t happen.
Since the article would be published in early December, we had to pretend it was already autumn. The reporter asked mom to cook and serve a complete Thanksgiving meal. She told Mom to “go all out” and use her best holiday dishes for the feast.
Mom’s face fell. She didn’t want to admit that our best dishes weren’t exactly the best, let alone suitable for a national magazine. While the reporter continued with her interview, the photographer quietly excused himself and slipped away for over an hour. When he came back, he had a large box, which he placed on the floor, telling Mom to open it.
Her mouth wide open, her face lit up as if it was Christmas. Inside was a beautiful set of 12 dishes, each painted with patterns of flowers and golden brims (金边), made by the Homer Laughlin China Co. There was even a soup bowl, something we kids had never seen before. Mom was near tears as she lovingly handled each piece.
When it came time to serve dinner, Mom walked slowly from the kitchen with the lovely new plate, which contained a small “turkey” (in reality, a large chicken).
From that day on, Mom made sure they never saw the light of day unless it was a major event, though they were a must at every Thanksgiving.
I carry on the tradition, using the dishes for our Thanksgiving feast. But I serve a real turkey, and I serve it on the real Thanksgiving Day.
1. Where did the photographer possibly go while mom was interviewed?A.A bookstore. | B.A china store. | C.A flower shop. | D.A candy shop. |
A.She was calm as usual. | B.She was moved into tears. |
C.She had a mix of feelings. | D.She thought little of them. |
A.Cozy. | B.Leisured. | C.Troubled. | D.Badly-off. |
A.To persuade readers to buy the same dishes her family cherishes. |
B.To tell us about the moving story behind the family-cherished dishes. |
C.To contribute an article concerning her family to a popular magazine. |
D.To write something down in memory of her mother and good days. |
7 . Carman Kelly, 82, needed a walking stick to push shopping carts (购物车) back to a certain area daily at an Arizona supermarket. Elizabeth Rizzo, a customer, wondered why the lady was still
After
The video has been widely
“I was
Kelly doesn’t know how to
Rizzo says she has a
She
A.traveling | B.working | C.shopping | D.exercising |
A.dream | B.view | C.decision | D.life |
A.learning | B.promising | C.showing | D.doubting |
A.interest | B.suggestion | C.situation | D.choice |
A.spread | B.sold | C.produced | D.rented |
A.relatives | B.designers | C.doctors | D.followers |
A.worried about | B.surprised at | C.sorry for | D.careful with |
A.confidence | B.courage | C.goodness | D.honesty |
A.touch | B.comfort | C.discover | D.value |
A.protect | B.answer | C.introduce | D.thank |
A.strong | B.new | C.strict | D.busy |
A.returned | B.failed | C.died | D.changed |
A.remembers | B.imagines | C.admits | D.continues |
A.look for | B.think of | C.trip over | D.talk about |
A.challenge | B.patience | C.saving | D.giving |
8 . California’s snowpack is more than two-and-a-half times larger than average (平均水平) right now, according to the state’s Department of Water Resources. As the weather gets warmer, it’s going to melt (融化). Scientists say there’s no question we need the snow.
“The melting of snow has always been important every single year in California,” said scientist Dr. Pat Abbott.
This comes as the latest U.S. Drought Monitor report shows almost two-thirds of the state is not experiencing drought (干旱), a huge improvement over the past few months. Unluckily, the snowpack can’t make certain that we’ll stay that way.
“Drought is part of California,” said Dr. Abbott. “We’ve had a temporary respite. That doesn’t mean it has gone away completely. It will be back sooner than we would like.”
The snow can be a valuable protection against wildfires, but only if it melts slowly. “Plants stay healthy. They have taken in enough water and are less likely to catch on fire for a longer time,” said Dr. Abbott. “If it becomes too hot, say in early June, and all that snow is melted and gone, the plants don’t get more water and start drying out. By the time we get to the end of the summer, it’s easier for them to catch fire. The bigger the fires are, the greater the challenge is for our firefighters.”
A quick melt can also flood places near the Sierra Nevada (a mountain range in eastern California) that got more rain than they could deal with this winter. That includes places like Tulare Lake (in the Central Valley of California), which was dry for years until this winter. Now, it’s more than 100 square miles in size and flooding communities around it.
The area is expecting even more flooding when the snowpack melts. But Dr. Abbott says floods like this are a necessary risk for water the state has needed for years. “The snow we’ve gotten this winter is highly positive,” said Dr. Abbott. “On the other side, nothing is ever 100%.” Dr. Abbott says the snow is also helping to fill Northern California’s man-made lake, which helps provide water we need.
1. What do the underlined words “temporary respite” in paragraph 4 mean?A.Close look. | B.Short break. | C.Clear goal. | D.Long history. |
A.The snow’s melting speed matters. |
B.It is costly to reduce the risk of wildfires. |
C.Some plants died because it was too dry. |
D.Plants will be hurt if the snow melts slowly. |
A.It calls for more attention. |
B.It does good to California. |
C.It may cause unnecessary worries. |
D.It will cause danger in the long run. |
A.California’s snowpack: a wonderful view |
B.Snowpack in California: a record snowfall |
C.Snowpack in California: advantages and risks |
D.California’s snowpack: the past and the present |
1. Why does the speaker give the talk?
A.To express thanks. | B.To introduce a project. | C.To make an invitation. |
A.The sports day. | B.The reading evening. | C.The music competition. |
A.Children with family problems. |
B.Children with health problems. |
C.Children with learning difficulties. |
1. Where is the new skatepark?
A.Opposite the cinema. |
B.Behind the man’s house. |
C.Near the swimming pool. |
A.It’s noisy. | B.It’s large. | C.It’s clean. |
A.£3 | B.£5 | C.£7. |
A.Having lunch at the skatepark. |
B.Staying at the skatepark until 1 pm. |
C.Leaving early for the skatepark. |