下列有关生物实验所涉及的仪器、试剂及技术的说法正确的是

①脂肪的鉴定②噬菌体侵染细菌实验③证明DNA半保留复制

④光合色素提取和分离⑤有丝分裂的观察实验⑥DNA的粗提取与鉴定

阅读理解，根据短文内容判断正(T)误(F)。

It'sSundaymorning.ThestudentsofClass3aregivingtheirclassroomagoodcleaning.

MissHuang,theirteacher,isworkingwiththem.Thechildrenarebusy.Somearecarryingwater;

somearecleaningthewindows;othersaresweepingthefloor.ZhangHuaisputtingupamaponthe

wall.ItisamapofChina.WangFeiandWeiQingaremendingsomebrokenchairs.Thechildrenare.

listeningtotheradiowhiletheyareworking.Theclassroomlooksniceandbrightafterthecleaning.

Thechildrenareveryhappy.Theygohomeforlunchatnoon.

()1.ThechildrenareplayingintheirclassroomonSundaymorning.

()2.MissHuang,theirmother,isworkingwiththem.

()3.ThereisamapofChinaonthewall.

()4.Twoofthemarerepairingthebrokenchairs.

()5.Theyaresingingwhiletheyareworking.

me(主格)__________

根据提供的情景，选择正确的句子，将其标号填在题前的括号内。

A.Let'sgotothezoo.B.Canyouspell“window”?

C.Goodevening，Dad.

D.Goodnight.

E.ThisisMrZhang.

F.Lookatthenewcar.

G.Comeandsithere.

H.It'smyfavouritecolour.

()1.傍晚见到父亲说：___________

()2.你想说这是我最喜欢的颜色：________

()3.你想叫人拼写窗户这个单词，可以说：_________

()4.你叫汤姆过来坐，可以说：________

()5.你想请别人欣赏这辆红色法拉利小轿车，可以说：_______

()6.想邀请别人一起去动物园，可以说：________.

()7.睡前对母亲说晚安，应表达为：________

()8.你向Helen介绍一下张老师，应该说：______

()Well，wouldyoulike_____todrink?