--Thankyouverymuch!

--________.

据有关调查，在学习过程中，69.75%的初中生和67.84%的高中生表示心理上显得比较紧张，并产生焦虑情绪，甚至产生自卑、嫉妒、封闭心理。而导致他们紧张的因素，主要是学习压力大。面对学习压力，作为中学生应该

①有新的思维，理智地从容应对②懂得学习需要适度的压力，才能激发我们的干劲和潜力

③在明确学习意义的基础上，积极培养学习的兴趣④消除、逃避一切学习压力

五(1)班有学生50人，其中有女生21人，男生占全班人数的几分之几?

下列关于家庭电路和生活用电的说法错误的是()

JackisateacherofEnglish.Heisnotyoung，butheisnotold.Hehasaroundfaceandblackhair.Heistall.Therearefiftystudentsinhisclass.Theyalllikehim.Nowit'sintheafternoon.Look，somestudentsareworkingintheclassroom.Jackisthere，too.HeishelpingthemtostudyEnglish.Heisagoodteacher，andheisagoodfriendofthemall.

()1.WhatdoesJackdo?

A.Heisaworker.

B.Heisateacher.

C.Heisadoctor.

D.He'sanurse.

()2.Whatcolourishishair?

A.It'sblack.

B.Hisheiriswhite.

C.Itisbrown.

D.Hehasyellowhair.

()3.Howmanystudentsarethereinhisclass?

A.Therearefifteenstudentsinhisclass.

B.There'sfifty.

C.Hehasfifty.

D.There'refiftyinit.

()4.Jackisagoodteacher，isn'the?

A.Yes，heisn't.

B.No，heis.

C.Yes，he's.

D.Yes，heis.

()5.Whatarethestudentsdoingintheclassroom?

A.Theyarewalkingthere.

B.Theyaredoingtheirlessons.

C.Theyarehelpingtheirteacher.