2020年六年級(jí)生物下冊(cè) 第三單元 第二章 第三節(jié) 開花和結(jié)果評(píng)測(cè)練習(xí) 魯科版（五四制）

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1、2020年六年級(jí)生物下冊(cè) 第三單元 第二章 第三節(jié) 開花和結(jié)果評(píng)測(cè)練習(xí) 魯科版（五四制）一、 選擇題1. 胚珠著生在（ ）。A. 花瓣中 B.雄蕊中 C.柱頭中 D.子房中2. 桃花中能產(chǎn)生花粉的結(jié)構(gòu)是（ ）。A. 花藥B.花絲 C.柱頭 D.子房3. 花粉在萌發(fā)過程中產(chǎn)生花粉管，當(dāng)花粉管進(jìn)入（ ）時(shí)釋放出精子。A.柱頭 B.花柱 C.子房 D.胚珠4. 精子與卵細(xì)胞結(jié)合形成受精卵的過程叫（ ）A.開花 B.傳粉 C.受精 D.結(jié)果5.小麥花的主要部分是（ ）A.雌蕊和雄蕊B.花托和花柄C.花瓣和花萼D.果實(shí)和種子6.玉米開花時(shí)如果遇上連陰雨的天氣，產(chǎn)量就會(huì)降低，下面解釋正確的是（ ）。A.風(fēng)

2、大、氣溫低，花粉不能成熟 B.花粉被雨水沖落，影響風(fēng)力傳粉C.風(fēng)大、氣溫低，影響昆蟲傳粉D.陰雨天子房不能發(fā)育7.下圖是桃花結(jié)構(gòu)圖，請(qǐng)回答下列問題：（1）圖中（ ）構(gòu)成雄蕊，花粉中（ ）中。（2）圖中（ ）構(gòu)成雌蕊。 答案：1.D 2.A 3.D 4.B 5 .A 6.B 7.(1)2、3 2 (2)1、4、5附送：2020年六年級(jí)英語上冊(cè)Unit1Igotoschoolat800Lesson1教案人教精通版2 How to express using their daily life.Teaching aids word cards and multi-mediaTeaching steps

3、Step 1. Warming-up and Revision1. T: Look , what time is it? Ss try to answer. Use the real clock to learn how to read the time. (1) 直接讀數(shù)。 E.g 整點(diǎn):8:00 - eight. 幾點(diǎn)過：9:16 - nine sixteen.(2)過幾分用past。（1-30分） 9:16 - sixteen past nine. 半點(diǎn)： 9：:30.half past nine(3) 差幾分幾點(diǎn)用to。（31-59分） 10:52eight to eleven. sa

4、y the time. 9:30, 7:00, 11:45， 3:30, 6:30Step 2. PresentationLearn the words： in the morning = am get up 6:00go to school 7:00have breakfast 7:30 have classes 8:10 have lunch 12:20in the afternoon = pm have classes again 1:30school is over. 4:10go home 5:00 have dinner 6:15watch TV after dinner go t

5、o bed 10:002. T: This is my daily life, how about your daily life?(老師在講授自己的日常生活的時(shí)候隨時(shí)問學(xué)生，以達(dá)到邊學(xué)邊練習(xí)的目的) The Ss talk about their whole daily life.(the teacher will give them about 5minutes to practice)3. 學(xué)習(xí)e-mail 的格式。T: today I got an e-mail from Miss Song. Look.Read the e-mail together, then answer the

6、 questions:(1)Where isMiss Song from?(2)When does she go to work?(3)When does she do some listening?Step 3 Practice1. Listen to the tape, feel the Chinese.2. Listen and repeat , pay attention to the pronunciation.3. Read by themselves, find out what you cant understand.(每一遍都給學(xué)生的任務(wù)，讓學(xué)生帶著問題去聽或是讀課文)4.

7、Teach : about 大約，關(guān)于。By e-mail 通過郵件，make a sentence.（造句練習(xí)加深對(duì)詞義認(rèn)識(shí)，提高單詞的使用能力）5. Do some exercises:(1)Let me tell you _ his family.A. in B. of C. about D. for(2)Please get up _ 6:00 in the morning.A. at B. in C. for D. about(3)I have lunch at _ .A. 7:00 B. 11:50 C. 19:15 D. 23:10(4)Class _ over at 4:00.A. is B. begins C. are D. haveStep 4 summary What do you learn?Step 5 Homework1. Read the e-mail 10 times.2. Try to write an e-mail for your classmate.3. Preview next lesson.