专业英语演讲稿篇一：专业英语演讲稿Part 1 The Introduction Of Rose gardenFor centuries, there are many fairy tale about rose or take place in the rose garden, such as[The Nightingale And The Rose],you must heard of it, the nightingale made a red rose for the young man with her own blood with singing all night, it’s a sad story. What’s more, the story[Wild Swan],at the end of the story, princess sat on the rose blush with her swan brothers, what a romantic picture.Today, as far as I am concerned, many girls must have a dream of having a wedding with plenty of roses, or being a beautiful bride like a fresh rose, what’s more, living in a rose garden with the beloved one and so on. In a conclusion, rose is a symbol of beauty and love, it express the best wish of having a romantic life and the emotion.Here is a brief introduction of rose, it is a woody perennial of the genus Rosa. There are more than 100 species in the world, gardeners plant them to build a rose garden. So now, I’ll leave the stage to my partnerCai jun, she will tell us something about instance analysis.Part 2 Instance analysisOk this part, I will give an example to discuss the Rose Garden.First, it’s a brief introduction about QingHai Rose GardenIt is part of low density and top housing estate, with large space occupation, simple style of England in QingHai.Then Let’s see some roses applications in this community.It’s divides into two parts: To start with, planting in house to decorate room make people happy. On the other hand, a large area of cultivation to develop the secondary industry such as tea making. Closing to nature make people feel more comfortable.Meanwhile, rose garden has high collectable, attract the crows admire and form a senic spot. In addition drive more and more people purchase it, promote the local economic growth.However, everything has two sides. Rose garden notonly increase the project costing unintentionally, but also has high requirements of the geographical conditions. And high price to limit consumers.That’s all what i want to say.Next then, welcome my partner explain the design of Rose Garden.Part 3 The layout of rose gardenThe layout of rose garden contains four parts: pergola, lattice well, flowers hedge and others.(I draw some pictures to help us to understand it.)Pergola: First, plant rose from both sides of pergola; then, lead the branch grows with it. Lattice well: This is the iron wire. Iron wire is utilized to make reticulation. The green stems could be coiled around the iron wire. Lattice well will be done about three years.Flowers hedge: There is a same way as the pergola to make a hedge.Others: you can also use roses to make some animal shapes.Such as: rabbit, hippocampus……The rose garden is done after collocate with gardenlights, furniture, lattice well, flowerhedge, pergola and awning. You can have a barbecue in the rose garden with friends.Part 4 The most popular roseGood evening, everyone, tonight I'd like to say something about the most popular rose. As we all known ,there are many kinds of roses, the red rose, blue rose, white rose, green roses and purple rose, black rose, yellow rose, rainbow rose. Now, Let's take a look some the most popular roses.Look at the picture ,it called Blue enchantress . we can rarely see a natural blue rose, when a white rose quickly to the flowering, watering it with dyes, because absorbs the dyes, and finally it turned blue Blue enchantress means pure love and sincere love.Next one, Avalanche. Avalanche is one of white roses, it Commonly used in modern fashion wedding. it’s price is higher than common White rose.This is Roasted rose, Roasted rose can adaptation for climate to grow in manycountry, it can be widely used in rose’s deep Processing. It’s a rare superior varieties ofagriculturalThen, Champagne roses: Champagne roses is The national flower of Bulgaria.Some people say wishing on a champagne roses can be achieved, so it called happy flower . Corolla: Corolla rose is the patent product of the United States, belong to the topvarieties of red rosesBulgaria rose:Bulgaria rose is the best varieties rose for essence oil and production rose pure water, it has very highly economic value.Thank you for your attention, now welcome to my group members huang li chun To Introduction more about rose.Part 5 other five popular rose.Blue Moon, Sweet pretty, Alba Meialandina, Horatio Nelson and Sun Sprinkles are also very popular among people.Blue line rose have a fresh color like lavender, charming and make your feel romantic. It is popular in northern city and easily survival.Sweet PrettyIt has a little of petals but has a number of flowers and like the butterflies dancing on the green leaves. You can see the stamen very clearly and the twigs are soft.Alba MeialandinaThe white color looks simple but elegant. It can serve as the potted plant and bedding plant. Horatio NelsonIt cultivates from England. Both cold-consistence and disease -consistence are very good. It can use to decorate the wood-fence and act as the cut flower.Sun SprinklesThese flowers have thin petals, but have long flowering phase.The color of flowers like the sunlight, let us feel warm. People often use to decorate the arch.The most popular rosePart 6Today I will introduce five methods of growing roses; seedling、cuttage、grafting、marcottage and root division.The commonest form is generative propagation. Generally, it is used for cultivation of new cultivars, we can put the seeds picking in the autumn in plastic bags with wet soil. Placed in circadian rhythma. After a month heating up the temperature to 20℃ gradually, wait it rupture and sprout.CuttageTwig cottage: choose the sprout buds in early spring, disbranch few xylom from stem, deal with growth hormone then insert nursery beds.Stiff wood cottage: cut the substantial branch overwintering place in low temperature romm and insert upside down wet sand. Next spring transplant to nursery beds.Stiff wood hygroscopic: choose the branch with one or two leaves, cut the bottom, stick in the water, put it in 15℃—20℃with sunshine, it can promote proliferate.Grafting include budding、branch grafting and root grafting.There are two ways to marcottage, one is on the ground, the other one in the air. During the rosegrowing time, carve branch, curve it cover wet soil, when the wound outgrow new root, cut down and transplant. The second method we can choose a suitable position on train rose carve branch or peel off the skin. Put a packet of soil around it about a month, cut down when it have root.The last one is root division. Plant the roses deeply, urge branch grow root, cut the new root with the lateral branch to get a new one.Here are the five kinds of planting roses, thank you for your attention.Part 7 how to control diseases and insect pestsThere are often two kinds of diseases infect rose, powdery mildew and downy mildew. The powdery mildew often appears in new leaves in early spring and late autumn. It’s a kind of spore flow with the air. Spraying water frequently can prevent the disease. And the infected leaves must be cut immediately once the rose was ill. The downy mildew will hurt the leaves, petals, shoots, pedicels. The humidity should be controlled under 85% to prevent downy mildew and don’t use toomuch nitrogenous fertilizer to prevent the disease.And there are two kinds of insect pests often hurt rose, aphid and red spider. Aphid can appear in any time during a year. It will be threaten when weather is dry. Pesticide should be sprayed in the growing point and back of leaves to control the pest. Red spider will suck up chlorophyll of leaves. And pesticide should be sprayed at the early stage of the illness.篇二：专业英语演讲稿INTRODUCTIONThe operational [preinl] amplifier [mplfa] is an extremely efficient and versatile [v:stail] 通用device. Its applications span the broad electronic industry filling requirements for signal conditioning, special transfer functions, analog [nl:g] 模拟instrumentation, analog computation, and special systems design. The analog assets [set ] of simplicity [simplisiti] and precision characterize circuits [s:kit]utilizing [ju:tilaiz] operational amplifiers.运算放大器是一个非常有效和通用设备。