龍顏

New app records sound?to identify dangerous mosquitoes

難詞探意

1. flap /flp/ v. 振（翅）

2. buzz /bz/ v. 發(fā)出嗡嗡聲

3. vaccine /vksin/ n. 疫苗

Scientists have created a new app designed to identify dangerous mosquitoes. The app， called Abuzz， is aimed at helping fight major diseases spread by mosquitoes， which kill hundreds of thousands of people each year.

Anyone with a mobile phone could use the app to identify mosquitoes. If they see a mosquito around， they just take out the phone， open the app， point their phone towards the mosquito and hit the record button. Then， when the mosquito flaps its wings and starts flying around， it makes that annoying buzzing noise. That noise is what gets recorded by the Abuzz app.

Many diseases that mosquitoes carry do not have cures or vaccines. So， targeting the flying insects is the best way to control them and the most important step is to know where the mosquitoes are. Out of about 3，500 different mosquito species， only about 40 are dangerous to humans.

The goal of the project was to find out whether the mosquitoes are just an annoyance or whether they are possibly dangerous. To find out， the researchers decided to listen. When moving their wings up and down， mosquitoes produce buzzing sounds. But each kind of mosquito makes a somewhat different buzzing noise. The app records these sounds. Users of the app can get an answer by recording as little as one or two seconds of the buzzing sound. The app compares this recording to a collection of other recordings. It then predicts which species of mosquito it is most likely to be.

Billions of people around the world can use this tool with their phones. So， the researchers say they will be able to monitor mosquitoes on a much larger basis than in the past. By searching mosquito information worldwide， the app can help build maps of where dangerous mosquitoes are. This can help scientists and health officials identify areas where disease is likely to break out and where to target mosquito control. Therefore， this kind of widespread community effort can be an important step in fighting mosquitocausing diseases.

1. What is the new app designed to do？

A. Get rid of dangerous insects.

B. Drive mosquitoes away quietly.

C. Distinguish different kinds of mosquitoes.

D. Fight against mosquitocausing diseases.

2. How does the app recognize mosquitoes？

A. According to the color.

B. According to the smell.

C. According to the sound.

D. According to the flying speed.

3. What does the underlined word “it” in paragraph 4 refer to？

A. The app.

B. The noise.

C. The mosquito.

D. The recording.

4. How can the app help to target mosquito control？

A. By making maps.

B. By studying disease.

C. By upgrading phones.

D. By monitoring environment.

Sentence for writing

When moving their wings up and down， mosquitoes produce buzzing sounds. 當(dāng)上下移動(dòng)翅膀時(shí)，蚊子會(huì)發(fā)出嗡嗡的聲音。

【信息提取】when moving their wings up and down為when mosquitoes are moving their wings up and down的省略結(jié)構(gòu)。當(dāng)狀語從句的主語和主句的主語一致，且狀語從句的謂語動(dòng)詞含有be動(dòng)詞時(shí)，可以將主語和be動(dòng)詞同時(shí)省略。

【句式仿寫】聽到“嫦娥五號(hào)”探測器成功返回地球的消息后，中國人民都?xì)g呼起來了。

蚊子是傳播疾病的害蟲之一，在很多蚊媒傳染病防控工作中，快速且準(zhǔn)確地識(shí)別傳播疾病的蚊子至關(guān)重要。近期，科學(xué)家們開發(fā)了一款名為Abuzz的應(yīng)用軟件，旨在識(shí)別危險(xiǎn)的蚊子，以幫助對抗蚊子傳播的主要疾病。